AU2012200356A1

AU2012200356A1 - Molecular sieve SSZ-74 composition of matter and synthesis thereof

Info

Publication number: AU2012200356A1
Application number: AU2012200356A
Authority: AU
Inventors: Allen W. Burton; Stacey I. Jones; Kenneth Ong
Original assignee: Chevron USA Inc
Current assignee: Chevron USA Inc
Priority date: 2005-12-28
Filing date: 2012-01-20
Publication date: 2012-02-09
Anticipated expiration: 2026-12-21
Also published as: AU2012200356B2

Abstract

The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication as a structure-directing agent, methods for synthesizing SSZ-74, and its use in hydrocarbon conversion reactions, reduction of oxides of 5 nitrogen in a gas stream, partial oxidation reactions, acylation reactions, oxygenate conversions, gas separations, synthesis of amines, treatment of engine exhaust (reduction of cold start emissions), and Beckmann rearrangement.

Description

Regulaion 3.2 AUSTRALIA Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Invention Title: Molecular sieve SSZ-74 composition of matter and synthesis thereof The following statement is a full description of this invention, including the best method of performing it known to us: MOLECULAR SIEVE SSZ-74 COMPOSITION OF MATTER AND SYNTHESIS THEREOF 3 4 BACKGROUND OF THE INVENTION 5 6 Field of the Invention 7 8 The present invention relates to new crystalline molecular sieve SSZ 9 74, a method for preparing SSZ-74 using a hexamethylene-1,6-bis-(N-methyl 10 'N-pyrrolidinium) dication as a structure directing agent ("SDA") and uses for II SSZ-74. 12 13 State of the Art 14 is Because of their unique sieving characteristics, as well as their 16 catalytic properties, crystalline molecular sieves and zeolites are especially 17 useful in applications such as hydrocarbon .conversion, gas drying and is separation. Although many different crystalline molecular sieves have been 19 disclosed, there is a continuing.need for new molecular sieves with desirable 20 properties for gas separation and drying, hydrocarbon and chemical 21 conversions, and other applications. New molecular sieves may contain novel 22 internal pore architectures, providing enhanced selectivities in these 23 processes. 24 25 SUMMARY OF THE INVENTION 26 27 The present invention is directed to a family of crystalline molecular 28 sieves with unique properties, referred to herein as "molecular sieve SSZ-74" 29 or simply "SSZ-74". 30 -lA- Composition of Matter and Synthesis 2 3 In accordance with the present invention there is provided a molecular 4 sieve having anole ratio greater than about 15 of (1) an oxide of a first 5 tetravalent element to (2) an oxide of a trivalent element, pentavalent element, 6 second tetravalent element which is different from said first tetravalent 7 element or mixture thereof and having, after calcination, the X-ray diffraction 8 lines of Table 11. It should be noted that the phrase "mole ratio greater than 9 about 15" includes the case where there is no oxide (2), i.e., the mole ratio of io oxide (1) to oxide (2) is infinity. In that case the molecular sieve is comprised i i of essentially all silicon oxide. 12 13 The present invention also provides a crystalline molecular sieve 14 having a mole ratio greater than about 15 of (1) silicon oxide to (2) an oxide 15 selected from aluminum oxide, gallium oxide, iron oxide, boron oxide, titanium 16 oxide, indium oxide and mixtures thereof, and having, after calcination, the 17 X-ray diffraction lines of Table II. 18 19 The present invention further provides such a crystalline molecular 20 sieve having a composition comprising, as synthesized and in the anhydrous 21 state, in terms of mole ratios the following: 22 23 SiO2 /XCOd greater than 100 24 Mvn / SiO 2 0-0.03 25 Q / SiO 2 0.30-0.70 26 F / SiO 2 0.30.-0.70 27 28 Wherein.X is aluminum, gallium, iron, boron; titanium, indium and mixtures 29 thereof, c is I or 2; d is 2 when c is 1 (i.e., W is tetravalent) or d is 3 or 5 when 30 c is 2 (i.e., d is 3 when W is trivalent or 5 when W is pentavalent), M is an 31 alkali metal cation, alkaline earth metal cation or mixtures thereof; n is the 32 valence of M (i.e., 1 or 2); Q is a hexamethylene-1,6-bis-(N-methyl-N 33 pyrrolidinium) dication and F is fluoride. -2- 2 Also provided in accordance with the present invention is a method of 3 preparing a crystalline material, said method comprising contacting under 4 crystallization conditions a source(s) of (1) silicon oxide, (2) a source(s) of 5 aluminum oxide, gallium oxide, iron oxide, boron oxide, titanium oxide, indium 6 oxide and mixtures thereof, (3) fluoride ions and (4) a structure directing agent 7 comprising a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication. The 9 present invention includes such a method wherein the crystalline material 9 has, after calcination, the X-ray diffraction lines.of Table 11. 10 I i The present invention includes such a method of preparing a crystalline 12 material which uses a reaction mixture comprising (in terms of mole ratios), 13 the following: 14 is SiO 2 / XaOb 100/1 and greater 16 OH- /SiO 2 0.20-0.80 17 Q / SiO 2 0.20 - 0.80 18 M2/n/SiO2 0-0.04 19 H 2 0 /SiO 2 2-10 20 HF I SiO2 .0.20 - 0.80 21 22 wherein X is aluminum, gallium, iron, boron, titanium, indium and mixtures 23 thereof, a is 1 or 2, b is 2 when a is 1 (i.e., W is tetravalent); b is 3 when a is 2 24 (i.e., W is trivalent), M is an alkali metal cation, alkaline earth metal cation or 25 mixtures thereof; n is the valence of M (i.e., 1 or 2); and Q is a 26 hexamethylene-1,6-bis-(N-methy-N-pyrrolidinium) dication. 27 28 . Hydrocarbon Conversion 29 30 In accordance with the present invention there is provided a process 31 for converting hydrocarbons comprising contacting a hydrocarbonaceous feed 32 at hydrocarbon converting conditions with a catalyst comprising a crystalline 33 molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a -3i first tetravalent element to (2) an oxide of a trivalent element, pentavalent 2 element, second tetravalent element which is different from said first 3 tetravalent element or mixture thereof and having, after calcination, the X-ray 4 diffraction lines of Table II.. The molecular sieve may be predominantly in the 5 hydrogen form. It may also be substantially free of acidity. 7 Further provided by the present invention is a hydrocracking process 8 comprising contacting a hydrocarbon feedstock under hydrocracking 9 conditions with a catalyst comprising the molecular sieve of this invention. The 1o molecular sieve may be predominantly in the hydrogen form. It 12 This invention also includes a dewaxing process comprising contacting 13 a hydrocarbon feedstock under dewaxing conditions with a catalyst 14 comprising the molecular sieve of this invention. The molecular sieve may be is predominantly in the hydrogen form. 16 17 The present invention also includes a process for improving the 1s viscosity index of a dewaxed product of waxy hydrocarbon feeds comprising 19 contacting the waxy hydrocarbon feed under isomerization dewaxing 20 conditions with a catalyst comprising the molecular sieve of this invention. The 21 molecular sieve may be predominantly in the hydrogen form. 22 23 The present invention further includes a process for producing a C 204 24 lube oil from a C 2 0 + olefin feed comprising isomerizing said olefin feed under 25 isomerization conditions over a catalyst comprising the molecular sieve of this 26 invention. The molecular sieve may be predominantly in the hydrogen form. 27 The-catalyst may contain at least one Group VIII metal. 28 29 In accordance with this invention, there is also provided a process for 30 catalytically dewaxing a hydrocarbon oil feedstock boiling above about 350*F 31 (177 0 C).and containing straight chain and slightly branched chain 32 hydrocarbon's comprising contacting said hydrocarbon oil feedstock in the 33 presence of added hydrogen gas at a hydrogen pressure of about 15-3000 psi -4-, (0.103 - 20.7 MPa) with a catalyst comprising the molecular sieve of this 2 invention. The molecular sieve may be predominantly in the hydrogen form. 3 The catalyst may contain at least one Group Vill metal. The catalyst may be a 4 combination comprising the mole ular sieve of this invention, and 5 aluminosilicate zeolite which is more shape selective than the molecular 6 sieve. The combination may contain at (east one Group Vill metal. 7 S Also included in the present invention is a process for preparing a 9 lubricating oil which comprises hydrocracking in a hydrocracking zone a to hydrocarbonaceous feedstock to obtain an effluent comprising a II hydrocracked oil, and catalytically dewaxing said effluent comprising 12 hydrocracked oil at a temperature of at least about 400*F (204 0 C) and at a 13 pressure of from about 15 psig to about 3000 psig (0.103 - 20.7 Mpa 14 gauge)in the presence of added hydrogen gas with a catalyst comprising the is molecular sieve of this invention. The molecular sieve may be predominantly 16 in- the hydrogen form. The catalyst may contain at least one Group Vill metal. 17 18 Further included in this inivention is a process for isomerization 19 dewaxing a raffinate comprising contacting said raffinate in the presence of 20 added hydrogen with a catalyst comprising the molecular sieve of this 21 invention. The raffinate may be bright stock, and the molecular sieve may be 22 predominantly in the hydrogen form. The catalyst may contain at least one 23 Group Vill metal. 24 25 Also included in this invention is a process for increasing the octane of 26 a hydrocarbon feedstock to produce a product having an increased aromatic 27 content comprising contacting a hydrocarbonaceous feedstock which 28 comprises normal and slightly branched hydrocarbons having a boiling range 29 above about 40 0 C and less~ than about 200*C, under aromatic conversion 30 conditions with a catalyst comprising the molecular sieve of this invention 31 made substantially free of acidity by neutralizing said molecular sieve with a 32 basic'metal. Also provided in this invention is such a process wherein the 33 molecular sieve contains a Group VIII metal component. -5- 2 Also provided by the present invention is a catalytic cracking process 3 comprising.contacting a hydrocarbon feedstock in a reaction zone under 4 catalytic cracking conditions in the absence of added hydrogen with a catalyst 5 comprising the molecular sieve of this invention. The molecular sieve may be 6 predominantly in the hydrogen form. Also included in this invention is such a 7 catalytic cracking process wherein the catalyst additionally comprises a large 8 pore crystalline cracking component. 9 to This invention further provides an isomerization process for isomerizing 11 C 4 to C7 hydrocarbons, comprising contacting a feed having normal and 12 slightly branched C 4 to C7 hydrocarbons under isomerizing conditions with a 13 catalyst comprising the molecular sieve of this invention. The molecular sieve 14 may be predominantly in the hydrogen form. The molecular sieve may be i5 impregnated with at least one Group Vill metal, for example platinum..The 16 catalyst may be calcined in a steamlair mixture at an elevated temperature 17 after impregnation of the Group Vill metal. 19 19 Also provided by the present invention is a process for alkylating an 20 aromatic hydrocarbon which comprises contacting under alkylation conditions 21 at least a molar excess of an aromatic hydrocarbon with a C 2 to C 20 olefin 22 under at least partial liquid phase conditions and in the presence of a catalyst 23 comprising the molecular sieve of this invention. The molecular sieve may be 24 predominantly in the hydrogen form. The olefin may be a C 2 to C4 olefin, and 25 the aromatic hydrocarbon and olefin may be present in a molar ratio of about 26 4:1 tQ about 20:1, respectively. The aromatic hydrocarbon may be selected 27 from the group consisting of benzene, toluene, ethylbenzene, xylene, 28 naphthalene, ndphthalene.derivatives, dimethylnaphthalene or mixtures 29 thereof. 30 31 Further provided in accordance with this invention is a process for 32 transalkylating an aromatic. hydrocarbon which-comprises contacting under 33 transalkylating conditions an aromatic hydrocarbon-with a polyalkyl aromatic -6hydrocarbon under at least partial liquid phase conditions and in the presence 2 of a catalyst comprising the molecular sieve of this invention. The molecular 3 sieve may be predominantly in the hydrogen form. The aromatic hydrocarbon 4 and.the polyalkyl aromatic hydrocarbon may be present in a molar ratio of 5 froM about 1:1 to about 25:1, respectively. 6 7 .The aromatic hydrocarbon may be selected from the group consisting s of benzene, toluene, ethylbenzene, xylene, or mixtures thereof, and the 9 polyalkyl aromatic hydrocarbon may be a dialkylbenzene. 10 I I Further provided by this invention is a process to convert paraffins to 12 aromatics which comprises contacting paraffins under conditions which cause 13 paraffin to convert to aromatics with a catalyst comprising the molecular 14 sieve of this Invention, said catalyst comprising gallium, zinc, or a compound 15 of gallium or zihc. 16 17 in accordance with this invention there is also provided a process for is isomerizing olefins comprising contacting said olefin under conditions which 19 cause isomerization of the olefin with a catalyst comprising the molecular 20 sieve of this. invention. 21 22 -Further provided in accordance with this invention is a process for 23 isomerizing an isomerization feed comprising an aromatic C 8 stream of xylene 24 isomers or mixtures of xylene isomers and ethylbenzene, wherein a more 25 nearly equilibrium ratio of ortho-, meta- and para-xylenes is obtained, said 26 process comprising contacting said.feed under isomerization conditions with a 27 catalyst comprising the molecular sieve of this invention. 28 29 The present invention further provides a process for oligomerizing 30 olefins comprising contacting an olefin feed under oligomerization conditions 31 with a catalyst comprising the molecular sieve of this invention. 32 -7- I This invention also provides a process for converting oxygenated 2 hydrocarbons.comprising contacting said oxygenated hydrocarbon with a 3 catalyst comprising the molecular sieve of this invention under conditions to 4 produce liquid products. The oxygenated hydrocarbon may be a lower 5 alcohol. 6 7 Further provided in accordance with the present invention is -a process 8 for the production of higher molecular weight hydrocarbons from lower 9 molecular weight hydrocarbons comprising the steps of: to (a) introducing into a reaction zone a lower molecular weight II hydrocarbon-containing gas and contacting said gas in said 12 zone under C 2 + hydrocarbon synthesis conditions with the 13 catalyst and a metal or metal compound capable of converting 14 the lower molecular weight hydrocarbon to a higher molecular 15 weight hydrocarbon; and . 16 -*(b) .withdrawing from said reaction zone a higher molecular weight 17 hydrocarbon-containing stream; 18 19 The present invention further provides a process for hydrogenating a 20 hydrocarbon feed containing unsaturated hydrocarbons, the process 21 comprising contacting the feed and hydrogen under conditions which cause 22 hydrogenation with a catalyst comprising the molecular sieve of this invention. 23 The catalyst can also contain metals, salts or complexes wherein the metal is 24 selected from the group consisting of platinum, palladium, rhodium, iridium or 25 combinations thereof, or the group consisting of nickel, molybdenum, cobalt, 26 tungsten, titanium, chromium, vanadium, rhenium, manganese and 27 combinations thereof. 28 29 The present invention also provides a catalyst composition for - 30 promoting polymerization of 1-olefins, said composition comprising 31 32 (A) a crystalline molecular sieve having a mole ratio greater than 33 about 15 of (1) ah oxide of a first tetravalent element to (2) an -8oxide of a trivalent element, pentavalent element, second 2 tetravalent element which is different from said first tetravalent 3 element or mixture thereof and having, after calcination, the 4 X-ray diffraction lines of Table II; and 5 6 (B) an organotitanium or organochromium compound. 7 8 Also provided is a process for polymerizing 1-olefins, which process 9 comprises contacting 1-olefin monomer with a catalytically effective amount of 1o a catalyst composition comprising 11 12 (A) a crystalline molecular sieve having a mole ratio greater than 13 about 15 of (1) an oxide of a first tetravalent element to (2) an 14 oxide of a trivalent element, pentavalent element, second 15 tetravalent element which is different from said first tetravalent 16 element or mixture thereof and having, after calcination, the 17 X-ray diffraction lines of Table 11; and 18 19 (B) an organotitanium or organochromium compound. 20 21 under polymerization conditions Which include.a temperature and pressure 22 suitable for initiating and promoting the polymerization reaction. The 1 -olefin 23 may be ethylene. 24 25 In accordance with this invention, there is also provided a process for 26 hydrotreating a hydrocarbon feedstock comprising contacting the feedstock 27 with a hydrotreating catalyst and hydrogen under hydrotreating conditions, 28 wherein the catalyst comprises the molecular sieve.of this invention. 29 30 The present invention also provides such a process wherein the 31 molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to 32 (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron 33 oxide, titanium oxide, indium oxide and mixtures thereof. -9- 2 Reduction of Oxides of Nitrogen 3 .- 4 In accordance with this invention, there is provided a process for the 5 reduction-of oxides of nitrogen contained in a gas stream wherein said 6 process comprises contacting the.gas stream with -a crystalline molecular 7 sieve having a mole ratio greater than about 15 of (1) an oxide of a first s tetravalent element to (2) an oxide of a trivalent.element, pentavalent element, 9 second tetravalent element which is different from said first tetravalent io element or mixture thereof and having, after calcination, the X-ray diffraction II lines of Table 11. The molecular sieve may contain a metal or metal ions (such 12 as cobalt, copper, platinum, iron, chromium, manganese, nickel, zinc, 13 lanthanum, palladium, rhodium or mixtures thereof) capable of catalyzing the 14 reduction of the oxides of nitrogen, and the process may be conducted in the 15 presence of a stoichiometric excess of oxygen..In one embodiment, the gas 16 stream is the exhaust stream of an internal combustion engine. 17.. 18 The present inVention also provides such a process wherein the 19 molecular sieve has a mole ratio greater than about 15.of (1) silicon oxide to 20 (2) an oxide-selected from aluminum oxide, gallium oxide, iron oxide, boron 21 oxide, titanium oxide, indium oxide and mixtures thereof. 22 23 Partial Oxidation . 24 25 In accordance with the present invention, there is.provided a process 26 for oxidation of hydrocarbons comprising contacting said hydrocarbon with-an 27 oxidizing'agent in the presence of a catalytically effective amount of a 28 titanium-containing molecular sieve for a time and at a temperature effective 29 to okidize said hydrocarbon, whereiri the titanium-containing molecular sieve 30 is a molecular sieve having a mole ratio greater than about 15 of (1) silicon 31 oxide to (2) titanium oxide and having, after calcination, the X ray diffraction 32 lines of Table [L. 33 -10- I There is further provided in accordance with this invention a process 2 for epoxidation of an olefin comprising contacting said olefin with hydrogen 3 peroxide in the presence of a catalytically- effective.amount'of a titanium 4 contairiing'molecular sieve for a time and at a temperature effective to s epoxidize said olefin, wherein the titanium-containing m6lecular sieve is a 6 molecular sieve having a mole ratio greater than about 15 of (1) silicon oxide 7 to (2) titanium oxide and having, after calcination, the-X-ray diffraction lines of s Table 11. 9 10 Further.provided in accordance with the present invention is a process ii for oxidizing cyclohexane comprising contacting said cyclohexane with 12 hydrogen peroxide in the presence of a catalytically effective amount of a 13 titanium-containing molecular sieve for a time and at a temperature effective 14 to oxidize said cyclohexane, wherein the titanium-containing molecular sieve 15 is a molecular sieve having a-mole ratio greater than about 15 of (1) silicon 16 oxide to (2) titanium oxide and having, after calcination; the X-ray diffraction 17 lines of Table 11. 18 19 The present invention also provides a catalytic oxidation process 20 comprising contacting under oxidation conditions (1) a reactant which is 21 catalytically oxidizable in the presence of hydrogen peroxide, (2) aqueous 22 hydrogen peroxide and (3) a catalytically effective amount of an oxidation 23 catalyst comprising a molecular sieve having a mole ratio greater than about 24 15 of (1) silicon oxide to (2) titanium oxide and having, after calcination, the X 25 ray diffraction lines of Table 11. 26 27 The present invention also provides a process for the epoxidatiori of an 28 olefin comprising contacting said olefin with hydrogen peroxide in the 29 presence of a catalytically effective amount of a catalyst -comprising a 30 molecular sieve having a mole ratio greater than about 15 of (1) silicon oxide 31 to (2) titanium oxide and having, after calcination, the X-ray diffraction lines of 32 Table 11. 33 -11-.

I Acylation 2 3 In accordance with the present invention, there is provided a method 4 for performing an acylation reaction on an aromatic substrate ArHn to form a 5 product ArHn.

1 COR, the method comprising the steps of: 6 7 providing the aromatic substrate, 9 intimately mixing the substrate and an acylating agent, wherein the 10 acylating agent is selected from the group consisting of a carboxylic acid i i derivative, a carboxylic acid, an acid anhydride, an ester, and an acyl 12 halide, and 13 14 exposing an intimate mixture thus formed to a catalyst comprising a 15 crystalline molecular sieve having a mole ratio greater than about 15 of 16 (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent i7 element, pentavalent element, second tetravalent element which is 1i..-.'.different from said first tetravalent element or mixture thereof and having, 19 after calcination, the X-ray diffraction lines of Table 11. 20 21 The present invention also provides such a process wherein the 22 molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to 23 (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron 24 oxide, titanium oxide, indium oxide and mixtures thereof. 25 26 The present invention also provides such a process wherein the 27 molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to 28 (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron 29 oxide, titanium oxide, indium oxide and mixtures thereof. 30 31 Oxygehate Conversion 32 33 The present invention relates to a process for the production of light 34 olefins comprising olefins having from 2 to 4 carbon atoms per molecule from -12i an oxygenate feedstock. The process comprises passing the oxygenate 2 feedstock to an.oxygenate conversion zone containing a molecular sieve 3 catalyst to produce a light olefin stream. 4 5 .Thus,.in accordance with the present invention there is provided a 6 process for the production of light olefins from a feedstock comprising an 7 oxygenate or mixture of oxygenates, the process comprising reacting the 8 feedstock at effective conditions over a catalyst comprising a crystalline 9 molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a io first tetravalent element to (2) an oxide of a trivalent element, pentavalent iI element, second tetravalent element which is different from said first 12 tetravalent element or mixture thereof and having, after calcination, the X-ray 13 diffraction lines of Table 11. 14 15 The present invention also provides such a process wherein the 16 molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to 17 (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron is oxide, titanium oxide, indium oxide and mixtures thereof. 19 20 Gas Separation 21 22 in accordance with the present invention there is provided a process 23 for separating gasses comprising contacting a mixture of gasses with a 24 membrane containing a molecular sieve wherein the molecular sieve is a 25 crystalline molecular sieve having a mole ratio greater than about 15 of (1) an 26 oxide of a first tetravalent element to (2) an oxide of a trivalent element, 27 pentavalent element, second tetravalent element which is different from said 28 first tetravalent element or mixture-thereof and having, after calcination, the 29 X:-ray diffraction lines of Table 11. The mixture-of.gasses may comprise carbon 30 dioxide and methane. 31 -13i the molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide 2 to (2) an. oxide selected from aluminum oxide, gallium oxide, iron oxide, boron 3 oxide, titanium oxide, indium oxide and mixtures thereof. 4 Synthesis of Amines 6 7 In accordance with the present invention there is provided a process 8 for producing methylamine or dimethylamine comprising reacting methanol, 9 dimethyl ether or a mixture thereof and ammonia in the gaseous phase in the io presence of a catalyst comprising a crystalline molecular sieve having a mole I Ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) 12 an oxide of a trivalent element, pentavalent element, second tetravalent 13 element which is different from said first tetravalent element or mixture thereof 14 and having, after calcination, the X-ray diffraction lines of Table 1I. 15 16 The present invention also provides such a process wherein the )7 molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to is (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron 19 oxide, titanium oxide, indium oxide and mixtures thereof, 20 21 Treatment of Engine Exhaust (Cold Start Emissions) 22 23 This invention generally relates to a process for treating an engine 24 exhaust stream and in particular-to a process for minimizing emissions during 25 the cold start operation of an engine. Accordingly, the present invention 26 provides a process for treating a cold-start engine exhaust gas stream 27 containing hydrocarbons and other pollutants consisting. of flowing said engine 28 exhaust gas stream over a molecular sieve bed which preferentially adsorbs 29 the hydrocarbons over water to provide a first exhaust stream, and floWing the 30 first exhaust gas stream over a catalyst to convert any residual hydrocarbons 31 and other pollutants contained in the first exhaust gas stream to innocuous 32 products and provide a treated exhaust stream and discharging the treated 33 exhaust stream into the atmosphere, the molecular sieve bed characterized in .- 14-- I that it comprises a crystalline molecular sieve having a mole ratio greater than 2 about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a 3 trivalent element, pentavalent element, second tetravalent element which is 4 different from said first tetravalent element or mixture thereof and having, after 5 calcination, the X-ray diffraction lines of Table'l: 6 7 Also provided in accordance with:the present invention is such a. 8 process wherein the molecular sieve crystalline -molecular sieve-has a mole 9 ratio greater than about 15 of (1) silicon oxideto (2) an oxide selected from 1o aluminum oxide,'gallium oxide, iron oxide, boron oxide, titanium oxide, indium i i oxide and mixtures thereof. 12 13 The present invention further provides such a process wherein the 14 engine is an internal combustion engine, including automobile engines, which 15 can be fueled by a hydrocarbonaceous fuel. 16 17 - Also provided by the present invention is such a process wherein the is molecular sieve has deposited on it a metal selected from the group 19 consisting of platinum, palladium, rhodium, ruthenium, and mixtures thereof. 20 21 Beckmann Rearrangement 22 23 In accordance with the present invention there is provided a process 24 forthe preparation of amides from oximes via Beckmann rearrangement 25 comprising contacting the oxime in the vapor phase with a catalyst comprising 26 a crystalline molecular sieve having a mole ratio greater than about 15 of (1) 27 an oxide of a first tetravalent element to (2) an oxide of a trivalent. element, 28 pentavalent element, second tetravalent element which is different from said 29 first tetravalent element or mixture thereof and having, after calcination, the 30 X-ray diffraction lines of Table 11. The molecular sieve typically is acidic. 31 32 The present invention also provides such a process wherein the 33 crystalline molecular sieve has a mole ratio greater than about 15 of (1) silicon -15-.

I oxide to (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, 2 boron oxide, titanium oxide, indium oxide and mixtures thereof, and having, 3 after calcination, the X-ray diffraction lines of Table I.

4 5 BRIEF DESCRIPTION OF THE DRAWING 6 7 Figure 1 shows a comparison of two X-ray diffraction patterns, the top s one being ZSM-5 and the bottom one being SSZ-74. 9 10 DETAILED DESCRIPTION OF'THE INVENTION 11 12 The present invention comprises a molecular sieve designated herein 13 "molecular sieve SSZ-74" or simply "SSZ-74". 14 is In preparing SSZ-74, a hexamethylene-1,6-bis-(N-methyl-N 16 pyrrolidinium) dication is used as a structure directing agent ("SDA"), also 17 known as a crystallization template. The SDA useful for making SSZ-74 has is the following structure: 19 X N (CH 2

)

6 -- N 20 21 Hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication 22 23 The SDA dication is associated with anions (X~) which may be any 24 anion that is not detrimental to the formation of the SSZ-74. Representative 25 anions include halogen, e.g., fluoride, chloride, bromide and iodide, hydroxide, 26 acetate, sulfate, tetrafluoroborate, carboxylate, and. the like.- Hydroxide is a. 27 typical anion, since the structure directing agent (SDA) may be used to 28 provide hydroxide ion. Thus, it is beneficial to ion exchange, for example, a 29 halide to hydroxide ion. 30 -16in general, SSZ-74 is prepared by contacting (1) an active source(s) of 2 silicon oxide, and, optionally, (2) an active source(s) of aluminum oxide, 3 gallium oxide, iron oxide, boron oxide, titanium oxide, indium oxide and 4 mixtures thereof with the hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) 5 dication SDA in the presence of fluoride ion.. 6 7 . SSZ-74 -is prepared from a reaction mixture comprising, in terms of 8 mole ratios, the following: 9 TABLE A 10 Reaction Mixture I Embodiment I Embodiment 2 12 SiO 2 / XaOb 100 and greater 13 OH- / Si02 0.20 - 0.80 0.40 - 0.60 I 4 Q / SiO 2 0.20 - 0.80 0.40 - 0.60 is M 2 /n / SiO 2 0-0.04 . . 0-0.025 16 H 2 0 / SiO 2 2-10 3-7 17 HF / SiO 2 0.20-0.80 . 0.30 - 0.60 18 19 where X is aluminum, gallium, iron, boron, titanium, indium and mixtures 20 thereof, a is 1 or 2, b is 2 when a is 1- (i.e., W is tetravalent); b is 3.when a is 2 21 (i.e., W is trivalent), M is an alkali metal cation, alkaline earth metal cation or 22 mixtures thereof; n is the valence of.M (i.e., 1 or 2); Q is a hexamethylene-1,6 23 bis-(N-methyl-N-pyrrolidinium) dication and. F is fluoride. 24 25 As noted'above, the SiO 2 / XaOb mole ratio In the reaction mixture is 26 100 and greater. This means that the SiO 2 / XsOb mole ratio can be infinity, 27 i.e., there is no XaOb in the reaction mixture. This results in a version of SSZ 28 74 that is essentially all silica. As used herein, "essentially all silicon oxide" or 19 "essentially all-silica" means that the molecular sieve's crystal structure is 30 comprised of only silicon oxide or is comprised of silicon oxide and only trace 31 amounts of other oxides, such as aluminum oxide, which may be introduced 32 as impurities in the source of silicon oxide. . 33 -17- I An example of the source of silicon oxide is tetraethyl orthosilicate. An 2 example of the source of aluminum oxide is LZ-210 zeolite (a type of Y 3 zeolite). 4 5 In practice, SSZ-74 is prepared by a process comprising: 6 (a) preparing an aqueous solution containing (1) a source(s) of 7 silicon oxide, (2) a source(s) of aluminum oxjde, gallium oxide, g iron oxide, boron oxide, titanium oxide, indiurn oxide and 9 mixtures thereof, (3) a source of fluoride ion and (4) a 1o hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication iI having an anionic counterion which is not detrimental to the 12 formation of SSZ-74; 13 (b) maintaining the aqueous solution under conditions sufficient to 14 form crystals of SSZ-74; and 15 (d) recovering the crystals of SSZ-74. 16 )7 The reaction mixture is maintained at an elevated temperature until the i8 crystals of-the SSZ-74 are formed. The hydrothermal crystallization is usually 19 conducted under autogenous pressure, at a temperature between IOOC and 20 200*C, for example between 135*C and 180 0 C. The crystallization period is 21 typically greater than 1 day, for example from about 3 days to about 20 days. 22 The molecular sieve may be prepared using mild stirring or agitation. 23 24 During the hydrothermal crystallizationi step, the S$Z-74 crystals can 25 be allowed to nucleate spontaneously from the reaction mixture. The use of 26 SSZ-74 crystals as seed material can be advantageous In decreasing the time 27 necessary for complete crystallization to occur. In addition, seeding can lead 28 to an increased purity of the product obtained by promoting the nucleation 29 and/or formation of SSZ-74 over any undesired phases. When used as seeds, 30 SSZ-74 crystals are added in an amount between 0.1 and 10% of the weight 31 of the first tetravalent element oxide, e.g. silica, used in the reaction mixture, 32 -18- Once the molecular sieve crystals have formed, the solid product is 2 separated from the reaction mixture by standard mechanical separation 3 techniques such as filtration. The crystals are water-washed and then dried, 4 e.g., at 90*C to 150 0 C for from 8 to 24 hours, to obtain the as-synthesized 5 SSZ-74 crystals. The drying step can be performed at atmospheric pressure 6 or under vacuum. 8 SSZ-74 as prepared has the X-ray diffraction lines of Table I below. 9 SSZ-74 has a composition, as synthesized (i.e., prior to removal of the SDA 1o from the SSZ-74) and in the anhydrous state, comprising the following (in 11 terms of mole ratios): 12 13 SiO2/XOd greater than 100 14 M 2 /n 1 SiO 2 0 - 0.03 Is Q / SiO 2 0.30-0.70 16 F / SiO 2 0.30-0.70 17 i8 wherein X is aluminum, gallium, iron, boron, titanium, indium -and mixtures 19 thereof, c is I or 2; d is 2 when c is 1 (i.e., W is tetravalent) or d is 3 or 5 when 20 c is 2 (i.e., d is 3 when W is trivalent or 5 when W is pentavalent), M is an 21 alkali rrietal cation, alkaline earth metal cation or.mixtures thereof; n is the 22 valence of M (i.e., 1 or 2); Q is a hexamethylene-1,6-bis-(N-methyl-N-. 23 pyrrolidinium) dication and F is fluoride. 24 25 SSZ-74 is characterized by its X-ray diffraction pattern. SSZ-74, as 26 synthesized, has a crystalline structure whose X-ray powder diffraction pattern 27 exhibits the characteristic lines shown in Table 1. 28 29 TABLE I 30 As-Synthesized SSZ-74 2 Theta . d-spacinq (Angstroms) Relative Integrated Intensity (%)( 7.95 11.11 W - -19- 8.68 10.18 M 8.85 9.98 W-M 9.02 9.80 W 22.69 3.92 W-M 23.14 3.84 VS' 24.01 . 3.70 M 24.52 3.63 W 24.93 3.57 W 29.95 2.98 W 1±0. 1 2 (b The X-ray patterns provided are based on a relative intensity scale in 3 which the strongest line in the X-ray pattern is assigned'a value of 100: 4 W(weak) is less than 20; M(medium) is between 20 and 40; S(strong) 5 is between 40 and 60; VS(very strong) is greater than 60. 6 7 Table IA below shows the X-ray powder diffraction lines for as 8 synthesized SSZ-74 including actual relative intensities. 9 0 TABLE IA As-Synthesized SSZ-74 2 Theta) d-spacing (Angstroms) Intensity 7.95 11.11 7.9 8.68 10.18 21.1 8.85. 9.98 . 18.7 9.02 9.80 11.3 11.30 7.82 . . 0.4 , 12.70 6.96 1.8 13.98 6.33 2.4 . 14.77 5.99 0.5 14.85 5.96 2.1 15.93 5.56 6.3 - 16.30 . 5.43 - 4.6 .16.50 5.37 1.8 17.05 5.20 0.8 17.41 5.09 0.1 17.71 5.00 2.0 18.09 4.90 7.4 18.38 - 4:82,.. 0.7 18.89 4.69 . 0.9 18.96 4.68 4 4 19.69 4.51 1.8 20.39 4.35 5.1 20.63 4.30 4.2, -20- 21.12 4.20 7.7 21.55 4.12 5.4 21.75 4.08 0.5 21.'80 . 4.07 1.4 21..88 4.06 2.1 21:96 4.04 1.5 22.17 4.01 0.8 22.69 - 3.92 18.9 23.14 3.84 . 100.0 23.89 3.72 9.4 24.01 3.70 25.6 24.52 3.63 13.7 24.68 3.60 2.1 24.93 3.57 11.3 25.09 3.55 0.9 25.37 3.51 1.7 25.57 3.48 2.7 26.20 3.40 5.5 26.31 3.38 0.8 26.67 3.34 2.0 26.76 3.33 1.0 26.82 3.32 0.9 27.01 3.30 3.4 27.05 3.29 0.8 27.48 3.24 0.8 27.99 3.19 4.2 28.18 3.16 0.8 28.78 3.10 0.6 29.03 3.07 0.7 29.31 3.04 0.9 29.58 3.02 2.4. 29.95 2,98 9.6 30.44 2.93 3.7 31.09 2.87 3.1 31.36 2.85 0.8 31.98 2.80 2.2 32.23 2.78 1.7 32.37 2.76 0.6 32.64 2.74 1.5 33.03 2.71 0.1 53. 34 2.69 1.0 33.47 2.68 1.3 34.08 2.63 0.7 34.55 2.59 1.8 34.73 2.58 0.4 2 -21- I After calcination, the X-ray powder diffraction pattern for SSZ-74 2 exhibits the characteristic lines shown in Table 11 below. 3 4 .

TABLE 11 5 Calcined SSZ-74 2 Theta") d-spacing (Angstroms) Relative Integrated Intensity (%) 7.98 11.07 M 8.70 10.16 VS 6.89 9.93 S. 9.08* 9.74 S 14.02 6.31 W 14.93 5.93 M 16.03 5.52 M 23.26 3.82 VS 23.95 3.71 W 24.08 3.69 M 6 ().1 7 8 Table llA below shows the X-ray powder diffraction lines for calcined 9 SSZ-74 including actual relative intensities. 10 TABLE IIA 12 - Calcined SSZ-74 13 2 Thata(a) d-spacini (Angstroms) Relative Integrated Intensity (%) 7.98 11.07 34.9 8.70 10.16 86.8 8.89 9.93 40.2 9.08 9.74 47.0 9.66 9.15 1.0 11.26 7.85 0.4 11.34 7.80 0.5 12.76 6.93 1.1 13.26 6.67 4.6 14.02 6.31 13.4 14.93 5.93 20.9 -16.03 5.52 23.5 16.39 5.40 4.3 16.61 5.33 4.4 17.12 5.18 3.0 17.80 4.98 2.8 -22- 18.19 4.87 7.6 19.05 4.66 1.9 19.74 4.49 0.4 20.44 4.34 3.0 20.75 4.28 3.4 21.19 4.19 7.7 21.67 4.10 4.1 21.99 4.04 5.8 22.6.8 3.92 3.7 22.79 3.90 9.5 23.26 3.82 100.0 23.95 3.71 14.2 2 :k 0.1 4 The X-ray powder diffraction patterns were determined by standard 5 techniques. The radiation was the K-alpha/doublet of copper. The peak 6 heights and the positions, as a function of 20 where 0 is the Bragg angle, were 7 read from the relative intensities of the peaks, and d, the interplaner spacing 8 in Angstroms corresponding to the recorded lines, can be calculated. 9 10 The variation in the scattering angle (two theta) measurements, due to I I instrument error and to differences between individual samples, is estimated 12 at ± 0.1 degrees. 13 14 Representative peaks from the X-ray diffraction pattern of calcined is SSZ-74 are shown in Table 11. Calcination can result in changes in the 16 intensities of the peaks as compared to patterns of the "as-made" material, as 17 well as minor shifts in the diffraction pattern. 19 Crystalline SSZ-74 can be used as-synthesized, but typically will be 20 thermally treated (calcined). Usually, it is desirable to remove the alkali metal 21 cation (if any) by iorl exchange and replace it with hydrogen; ammonium, or 22 any desired metal ion. 23 24 SSZ-74 can be formed into a wide variety of physical shapes. 25 Generally-speaking, the molecular sieve can be in the form of a powder, a -23- I granule, or a molded product, such as extrudate having a particle size 2 sufficient to pass through a 2-mesh (Tyler) screen and be retained on a 3 400-mesh (Tyler) screen. In cases where the catalyst is molded, such as by 4 extrusion with an organic binder, the SSZ-74 *can be extruded before drying, 5 or, dried oe partially dried and then extruded. 6 7 SSZ-74 can be composited with other materials resistant to the 8 temperatures and other conditions employed in organic conversion 9 processes. Such rmatrix materials include active and inactive materials and 10 synthetic or naturally occurring zeolites as well as inorganic materials such as I Iclays, silica and metal oxides. Examples of such materials and the manner in 12 which they can be used are disclosed in U.S. Patent No. 4,910,006, issued 13 May 20, 1990 to Zones et al., and U.S. Patent No. 5,316,753, issued May 31, 14 1994 to Nakagawa, both of which are. incorporated by reference herein in their is entirety. 16 17 Hydrocarbon Conversion Processes 18 19 SSZ-74 molecular sieves are useful in hydrocarbon conversion 20 reactions. Hydrocarbon conversion reactions are chemical and catalytic 21 processes in which.carbon containing compounds are changed to different 22 carbon containing compounds. Examples of hydrocarbon conversion 23 reactions in which SSZ-74 is expected to be useful include hydrocracking, 24 dewaxing, catalytic cracking and- olefin and aromatics formation reactions. 25 The catalysts are also expected to be useful in other petroleum refining and 26 hydrocarbon conversion reactions such as isomerizing n-paraffins and 27 naphthenes,- polymerizing and oligomerizing olefinic or acetylenic compounds 28 such. as isobutylene and butene-1, polymerization of 1-olefins (e.g., ethylene), 29 reforming, isomerizing polyalkyl substituted aromatics (e.g., m-xylene), and 30 disproportionating aromatics (e.g., toluene) to provide mixtures of benzene, 31 xylenes and higher methylbenzenes and oxidation reactions. Also included 32 are rearrangement -reactions to.make various naphthalene derivatives, and -24forming higher molecular weight hydrocarbons from lower molecular weight 2 hydrocarbons (e.g., methane upgrading). 4 The SSZ-74 catalysts may have high selectivity, and under 5 hydrocarbon conversion conditions can provide a high percentage of desired 6 products relative to total products. 7 s For high catalytic activity, the SSZ-74 molecular sieve should be 9 predominantly in its hydrogen ion form. Genially, the molecular sieve is 1o converted to its hydrogen form by-ammonium exchange followed by i calcination. If the molecular sieve is synthesized with a high enough ratio of 12 SDA cation to sodium Ion, calcination alone may be sufficient. Typically, after 13 calcination at least 80% of the cation sites are occupied by hydrogen ions 14 and/or rare earth ions. As used herein, "predominantly in the hydrogen form" is means that, after calcination, at least 80% of the cation sites are occupied by 16 hydrogen ions and/or rare earth ions. 17 is SSZ-74 molecular sieves can be used in processing 19 hydrocarbonaceous feedstocks. Hydrocarbonaceous feedstocks contain 20 carbon compounds and can be from many different sources, such as virgin 2) petroleum fractions, recycle petroleum fractions, shale oil, liquefied coal, tar 22 sand oil, synthetic paraffins. from NAO, recycled plastic feedstocks. Other 23 feeds include synthetic feeds, such as those:derived from a Fischer Tropsch 24 process, including an oxygenate-containing Fischer Tropsch process boiling 25 below about 371*C (700*F). In general, the feed- can be any carbon containing 26 feedstock susceptible to zeolitic catalytic reactions. Depending on the type of 27 processing the hydrocarbonaceous feed Is to undergo, the feed can contain 28 metal or be free of metals, it can also have high or low nitrogen or sulfur 29 impurities. It can be appreciated, however, that in general processing will be 30 more efficient (and the catalyst more active) the lower the metal, nitrogen, and 31 sulfur content of the feedstock. - 32 -25- I The conversion of hydrocarbonaceous feeds can take place in any 2 convenient mode, for example, in fluidized bed, moving bed, or fixed bed 3 reactors depending on the types of process.desired. The formulation of the 4 catalyst particles will vary depending on the conversion process and method s of operation. 6. . 7 Other.reactions which can be performed using the catalyst.of this s invention containing a metal, e.g., a Group Vill metal such platinum, include 9 hydrogenation-dehydrogenation reactions, denitrogenation and desulfurization 10 reactions. I 12 The following table indicates typical reaction conditions which may be 13 employed when using catalysts comprising SSZ-74 in the hydrocarbon 14 conversion reactions of this invention. Typical conditions are indicated in is parentheses.t -26- Process Temp.,*C Pressure LHSV Hydrocracking 175-485 0.5-350 bar 0.1-30 Dewaxing 200-475 15-3000 psig, 0.1-20 (250-450) 0.103-20.7 Mpa gauge (0.2-10) (200-3000, 1.38-20.7 Mpa gauge) Aromatics 400-600 atm.-10 bar 0.1-15 formation (480-550) Cat. Cracking 127-885 subatm.-' 0.5-50 (atm.-5 atm.) Oligomerization 232-6492 0.1-50 atm.'-' 0.2-502 10-232' 0.05-205 (27-204)' - (0.1-10)5 Paraffins to 100-700 0-1000 psig 0.5-40" aromatics Condensation of 260-538 0.5-1000 psig, 0.5-505 alcohols 0.00345-6.89 Mpa gauge Isomerization 93-538 50-1000 psig, 0.345- 1-10 (204-315) 6.89 Mpa gauge (1-4) Xylene 260-593~2 0.5-50 atm.

2 0.1-1005 isomerization (315-566)2 (1-5 atm) 2 (0.5-50)' 38-3714 1-200 atm.

4 0.5-50 2 Several hundred atmospheres 3 2 Gas phase reaction 4 , Hydrocarbon partial pressure 5 4 Liquid phase reaction 6 5 WHSV 7 Other reaction conditions and parameters are provided below. 8 - -27- Hydrocracking 2 3 Using a catalyst Which comprises SSZ-74, for example predominantly 4 in the hydrogen form, and a hydrogenation promoter, heavy petroleum s residual feedstocks, cyclic stocks and other hydrocrackate charge stocks can 6 be hydrocracked using the process conditions and catalyst components 7 disclosed in the aforementioned U.S. Patent No. 4,910,006 and U.S. Patent & No. 5,316,753. 9 1o The hydrocracking catalysts contain an effective amount of at least one I Hydrogenation component of the type commonly employed in hydrocracking 12 catalysts. The hydrogenation component is generally selected from the group 13 of hydrogenation catalysts consisting of one or more metals of Group VIB and 14 Group Vill, including the salts, complexes and solutions containing such. The 15 hydrogenation catalyst may be selected from the group of metals, salts and 16 complexes thereof of the group consisting of at least one of platinum, 17 palladium, rhodium, iridium, ruthenium and mixtures thereof or the group IS consisting of at least one of nickel, molybdenum, cobalt, tungsten, titanium, 19 chromium-arid mixtures thereof. Reference to the catalytically active metal or 20 metals is intended to encompass such metal or metals in the elemental state 21 or.in some form such as an oxide, sulfide, halide, carboxylate and the like. 22 The hydrogenation catalyst is present in an effective amount to provide the 23 hydrogenation function of the hydrocrackirig catalyst, for example in the range 24 of from 0.05 to 25% by-weight. 26 Dewaxing 27 28. SSZ-74, for example predominantly in the hydrogen form, can be used 29 to dewax hydrocarbonaceous feeds by selectively removing straight chain 30 paraffins. Typically, the viscosity index of the dewaxed product is-improved 31 (compared to the waxy .feed) when the waxy feed is contacted with SSZ-74 32 under isomerization dewaxing conditions. 33 -28- I .The catalytic dewaxing conditions are dependent in large measure on 2 the feed used and upon the desired pour point. Hydrogen is typically present 3 in the reaction zone during the catalytic dewaxing process. The hydrogen to 4 feed ratio is typically between about 500 and about 30,000 SCF/bbI (standard 5 cubic feet per barrel) (0.089 to 5.34 SCM/liter (standard cubic meters/liter)), 6 for example about 1000 to about 20,000 SCF/bbl (0.178 to 3.56 SCM/liter). 7 Generally:, hydrogen will. be separated from the product and recycled to~the 8 reaction zone.- Typical feedstocks include light gas oil, heavy. gas oils and 9 reduced crudes boiling above about 350 0 F (1770C).. 10 I IA typical dewaxing process is the catalytic dewaxing of a hydrocarbon 12 oil feedstock boiling above about 350*F (177 0 C) and containing straight chain 13 and slightly branched chain hydrocarbons by contacting the hydrocarbon oil 14 feedstock in the presence of added hydrogen gas at a hydrogen pressure of 15 about 15-3000 psi (0.103-20.7 Mpa) with a catalyst comprising SSZ-74 and at 16 least one Group Vill metal. 17 Is The SSZ-74 hydrodewaxing catalyst may optionally contain a 19 hydrogenation component of the type commonly employed in dewaxing 20 catalysts. See the aforementioned U.S. Patent No.- 4,910;006 and U.S. Patent 21 No. 5,316,753 for examples of these hydrogenation components. 22 23 The hydrogenation component is present in an effective amount to 24 provide an effective hydrodewaxing and hydroisomerization catalyst for 25 example in the range of from about 0.05 to 5% by Weight. The catalyst may be 26 run. in such a mode to increase isomerization dewaxing at the expense of 27 cracking reactions. 28 29 The feed may be hydrocracked, followed by dewaxing. This type of two 30 stage process and typical hydrocracking conditions are described in U.S. 31 Patent No. 4,921,594, issued May 1, 1990 to Miller, which is incorporated 32 herein by reference-in its entirety. 33 -29- I SSZ-74 may also be utilized as a dewaxing catalyst in the form of a 2 combination of catalysts. The combination comprises a first catalyst 3 comprising molecular sieve SSZ-74 and, desirably, at least one Group Vill 4 metal, and a- second catalyst comprising an alurninosiiicate zeolite'which is 5 more shape selective than molecular sieve SSZ-74. As used herein, the term 6 "combination" includes mixtures of the molecular sieve of this invention and 7 the alumihosilicate zeolite, layers of the molecular sieve and zeolite or any 8 other configuration in-which'the feed comes in contact with both'the molecular 9 sieve and the zeolite. The use of combined cItalysts in the form of layers is io disclosed in U.S. Patent No. 5,149,421, issued September 22, 1992 to Miller, i I which is incorporated by reference herein in its entirety. The layering may also 12 include a bed of SSZ-74 layered with a non-zeolitic component designed for 13 either hydrocracking or hydrofinishing. 14 is S$Z-74 may also be used to dewax raffinates, including bright stock, 16 under conditions such as those disclosed in U. S. Patent No. 4,181,598, 17 issued January 1, 1980 to Gillespie et al., which is incorporated by reference 18 herein -in its entirety, 19 20 - It is often desirable to use mild hydrogenation (sometimes referred to 21 at'hydrofinishing) to produce more stable dewaxed. products. The 22 hydrofinishing step can be performed either before or after the dewaxing step, 23 typically after. Hydrofinishing is typically conducted at temperatures ranging 24 frorn about 190*C to about 340 0 C at pressures from-about 400 psig to about 25 3000 psig (2.76 to 20.7 Mpa gauge) at space velocities (LHSV) between 26 about 0:1 and 20 and-a hydrogen recycle rate of about 400 to 1500 SCF/bbI 27 (0.071 to 0.27 SCM/liter). The hydrogenation catalyst employed must be 28 active enough not only to hydrogenate the olefins, diolefins and color bodies 29 which may be present, but also to reduce the aromatic content. Suitable 30 hydrogenation catalyst are disclosed in'U. S. Patent No. 4,921,594, issued 31 May 1, 1990 to-Miller, which is incorporated by reference herein in its entirety. 32 The hydrofinishing step is beneficial in preparing an acceptably stable product 33 (e.g., a lubricating oil) since dewaxed products prepared from hydrocracked . -30- I stocks tend to be unstable to air and light and tend to form sludges 2 spontaneously and quickly. 4 Lube oil may be prepared using SSZ-74. For example, a C20. lube oil may s be made by-isomerizing a C 2 0 , olefin feed over a. catalyst comprising SSZ-74 6 in the hydrogen form and at least one Group Vill metal. Alternatively,*the 7 lubricating oil may be made by hydrocracking in a hydrocracking zone a 8 hydrocarbonaceous feedstock to obtain -n effluent comprising a 9 hydrocracked oil, and catalytically dewaxing the effluent at a temperature of at i o least about 400"F (204*C) and at a pressure of from about 15 psig to about 11 3000 psig (0.103-20.7 Mpa gauge) in the presence of added hydrogen gas 12 with a catalyst comprising SSZ-74 in the hydrogen form and at least one 13 Group Vill metal. 14 is - Aromatics Formation 16 17 SSZ-74 dan be used to convert light straight run naphthas and similar is mixtures to highly aromatic mixtures. Thus, normal and slightly branched i9 chained hydrocarbons, for example those having a boiling range above about 20 40"C and less than about 200C, can be converted to products having a 21' substantial higher octane aromatics* content by contacting the hydrdcarbon 22 feed with a catalyst comprising SSZ-74. It is also possible to convert heavier 23 feeds into BTX or naphthalene derivatives of value using a catalyst 24 comprising SSZ-74. - 25 26 The conversion catalyst typically contains a Group Vill metal 27 compound to have sufficient activity for commercial use. By Group Vill metal 28 compound as used herein is meant the metal itself or a compound thereof. 29 The Group Vill noble metals and their compounds, platinum, palladium, and 30 iridium; or combinations thereof can be used. Rhenium or tin or a mixture 31 thereof may also be used in conjunction with:the Group VIl metal compound 32 (typically a noble metal compound), for example a platinum compound. The 33 amount of Group Vill metal present in the conversion catalyst should be within -31- I the normal range of use in reforming catalysts, from about 0.05 to 2.0 weight 2 percent, for example 0.2 to 0.8 weight percent. 3 4 it is critical to the selective production ofaromatics inuseful quantities 5 that:the conversion catalyst be substantially free of acidity, for example,-by 6 neutralizing the molecular sieve-with. a basic metal, e.g., alkali metal, 7 compound. Methods for. rendering the catalyst free of acidity are known in the 8 art. See the aforementioned U.S. Patent No. 4;91-0,006 and U.S. Patent 9 No. 5,31-6,753 for a description of such methods. 10 It Typical alkali metals are sodium, potassium, rubidium and cesium. The 12 molecular sieve itself can be substantially free of acidity only at very high 13 silica:alumina mole ratios, 14 15 - Catalytic Crackinq 16 17 Hydrocarbon cracking stocks can be catalytically cracked in the is absence of hydrogen using SSZ-74, for example predominantly in the 19 hydrogen form.' 20 21 When SSZa74 is used as a catalytic cracking catalyst in the absence of 22 hydrogen, the'catalyst may be employed in-conjunction with traditional 23 cracking catalysts, e.g., any aluminosilicate heretofore employed as a 24 component in cracking catalysts. Typically, these are large pore, crystalline 25 aluminosilicates. Examples of these traditional cracking catalysts-are 26 disclosed in -the aforementioned U.S. Patent No. 4,910,006 and U.S. Patent 27 No 5,316,753. When a traditional cracking catalyst (TC) component is 28 employed, the relative weight ratio of the TC to the SSZ-74 is generally 29 between about 1:10 and about 500:1, desirably between about 1:10 and 30 about 200:1ifor example between about~1:2 and about'50:1 or between about 31 1:1 and about 20:1 :The novel molecular sieve and/or the-traditional cracking 32 component may be further ion exchanged with rare earth ions to modify 33 selectivity. 32- 2 The cracking catalysts are typically employed with an inorganic oxide 3 matrix component. Seethe aforementioned U.S. Patent No. 4,910,006 and 4 U.S. Patent No. 5,316,753 for examples of such matrix components. 5 6 lsomerization 7 8 The present catalyst is highly active and highly selective for isomerizing 9 C4 to C7 hydrocarbons. The activity means that the catalyst can operate at 10 relatively low temperature which thermodynamically favors highly branched ii paraffins. Consequently, the catalyst can produce a high octane product. The 12 high selectivity means that a relatively high liquid yield can be achieved when 13 the catalyst is run at a high octane. 14 is The present process comprises contacting the isomerization catalyst, 16 i.e., a catalyst comprising SSZ-74 in the hydrogen form, with a hydrocarbon 17 feed under isomerization conditions. The feed is typically a light straight run is fraction, boiling within the range of 30*F to 250OF (-10C to 1210C), for example 19 from 60*F to 200*F (16 0 C to 93 0 C). Typically, the hydrocarbon feed for the 20 process comprises a substantial amount of C4 to C7 normal and slightly 21 branched low octane hydrocarbons, for example Cs and C 6 hydrocarbons. 22 23 The isomerization reaction is typically carried out in the presence of 24 hydrogen. Hydrogen may be added to give a hydrogen to hydrocarbon ratio 25 (H21HC) of between 0.5 and 10 H 2 /HC, -for example between 1 and 8 H 2 /HC. 26 See the aforementioned U.S. Patent No. 4,910,006 and U.S. Patent No. 27 5,316,753 for a further discussion of isomerization process conditions. 28 29 A low sulfur feed is especially useful in the present process. The feed 30 desirably-contains less than 10 ppm, for example less than 1 ppm or less than 31 0.1 ppm sulfur. In the case of a feed which is riot already low in sulfur, 32 acceptable levels can be reached by hydrogenating the feed in a . 33 presaturation zone with a hydrogenating catalyst which is resistant to sulfur -33- I poisoning. See the aforementioned U.S. Patent No. 4,910,006 and U.S. 2 Patent No. 5,316,753 for a further discussion of this hydrodesulfurization 3 process. 4 5 It is typical to limit the nitrogeri level and the water content of the feed. 6 Catalysts and processes which are suitable for these purposes are known to 7 those skilled in the art. 8 9 After a period of operation, the catalyst can become deactivated by Io sulfur or coke. See the aforementioned U.S. Patent No. 4,910,006 and U.S. 11 Patent No. 5,316,753 for a further discussion of methods of removing this 12 sulfur and coke, and of regenerating the catalyst. 13 14 The conversion catalyst desirably contains a Group Vill metal 15 compound to have sufficient activity for commercial use. By Group VillI metal 16 compound as used herein is meant the metal itself or a compound thereof. 17 The Group Vill noble metals and their compounds, platinum, palladium, and Is iridium, or combinations thereof can be used. Rhenium and tin may also be 19 used in conjunction with the noble metal. Typically, the metal is platinum: The 20 amount of Group Vill metal present in the conversion catalyst should be within 21 the normal range of use in isomerizing catalysts, from about 0.05 to 22 2.0 weight percent, for-example 0.2 to 0.8 weight percent. 23 24 Alkylation and Transalkylation 25 26 SSZ-74 can be used in a process for the alkylation or transalkylation of 27 an aromatic -hydrocarbon. The process comprises contacting the aromatic 28 hydrocarbon with a C2 to C1 olef in alkylating agent or a polyalkyl aromatic 29 hydrocarbon transalkylating agent, under at least partial liquid phase 30 conditions, and in the presence of a catalyst comprising SSZ-74. 31 -34- I SSZ-74 can also be used for removing benzene from gasoline by 2 alkylating the benzene as described above and removing the alkylated 3 product from the gasoline.. 4 5 F.or high catalytic activity, the SSZ-74 molecular sieve should be 6 predominantly in its hydrogen ion form. It is typical that, after calcination, at 7 least 80% of the cation sites are occupied by hydrogen ions and/or rare earth 8 ions. 9 10 Examples of suitable aromatic hydrocarbon feedstocks which may be i i alkylated or transalkylated by the process of the invention include aromatic 12 compounds such as benzene, toluene and xylene. Benzene is especially 13 useful. There may be occasions where naphthalene or naphthalene 14 derivatives such as dimethylnaphthalene may be desirable. Mixtures of is aromatic hydrocarbons may also be employed. 16 17 Suitable olefins for the alkylation of the aromatic hydrocarbon are those 18 containing 2 to.20, for example 2 to 4, carbon atoms, such as ethylene, 19 propylene, butene-1, trans-butene-2 and cis-butene-2, or mixtures thereof. 20 There may be instances where pentenes are desirable. Typical olefins are 21 ethylene and propylene. Longer chain alpha olefins may be used as well. 22 23 When transalkylation is desired, the transalkylating agent is a polyalkyl 24 aromatic hydrocarbon containing two or more alkyl groups that each may 2s have from 2 to about 4 carbon atoms. For example, suitable polyalkyl 26 aromatic hydrocarbons include di-, tri- and tetra-alkyl aromatic -hydrocarbons, 27 such as diethylbenzene, triethylbenzene, diethylmethylbenzene 28 (diethyltoluene), di-isopropylbenzene, di-isopropyltoluene, dibutylbenzene, 29 and the like. Typical polyalkyl aromatic hydrocarbons are the dialkyl 30 benzeies. A particularly desirable polyalkyl aromatic hydrocarbon is 31 di-sopropylbenzene. 32 -35-.

I When alkylation is the process conducted, reaction conditions are as 2 follows. The aromatic hydrocarbon feed should be present in stoichiometric 3 excess. It is typical that the molar ratio of aromatics to olefins'be greater than 4 four-to-One to prevent rapid catalyst fouling. The reaction temperature may s range from 106'F to 600*F (38*C to'315"C), for example 250*F to 450*F 6 (1210C to 2320C). The reaction pressure should be sufficient to maintain at 7 least a partial liquid phase in order to retard catalyst fouling. This is typically 8 50 psig to 1000 psig (0.345 to 6.89 Mpa gauge) depending on the feedstock 9 and'reaction temperature. Contact time may range from 10 seconds to 10 1o hours, but is usually from 5 minutes. to an hour. The weight hourly space i1 velocity (WHSV), in terms of grams (pounds) of aromatic hydrocarbon and 12 olefin per gram (pound) of catalyst per hour, is generally within the range of 13 about 0.5 to 50. 14 Is -When transalkylation is the process conducted, the molar ratio of 16 aromatic hydrocarbon will generally range from about 1:1 to 25:1, and for 17 example from about 2:1 to 20:1. The reaction temperature may range from 18 about 100*F to 600*F (380C to 3150C), but it is typically about 250*F to 450*F 19 (1210C to 232 0 C). The reaction pressure should be sufficient to maintain at 20 least a partial liquid phase, typically. in the-range of about 50 psig to 1000 psig 21 (0.345 to 6.89 Mpa gauge), for example 300 psig to 600 psig (2.07 to 4.14 22 Mpa gauge). The weight hourly space velocity will range from. about 0.1 to 10. 23 U.S. Patent No. 5,082,990 issued on January 21, 1992 to Hsieh, et al. 24 describes such processes and is incorporated herein by reference. 25 26 Conversion of Paraffins to Aromatics 2' 28 SSZ-74 can be- used to convert light gas C 2

-C

6 paraffins to higher 29 molecular weight hydrocarbons including aromatic compounds. Typically, the 30 molecular sieve will contain a catalyst metal or metal oxide wherein said metal 31 is selected from the group'consisting of Groups 11, 11B, Vill and lilA of the 32 Periodic Table, for example gallium, niobium, indium or zinc, in the range of 33 from about 0.05-to 5% by weight. -36- 2 Isomerization of Olefins 3 4 SSZ-74 can be used to isomerize olefins. The feed stream is a 5 hydrocarbon stream containing at least one C:.

6 olefin, for example a C 4 .6 6 normal olefin'such as normal tutene.' Normal butene as'used in this 7 specification means all forms of normal butene, e.g., 1-butene, cis-2-butene, s and trans-2-butene. Typically, hydrocarbons other-than normal butene or 9 othr C4.

6 normal olefihs will be present in the feed strearn. These other to hydrocarbons may include, e.g., alkanes, other olefins, aromatics, hydrogen, I Iand inert gases. 12 13 The feed stream typically may be the effluent from a fluid catalytic 14 cracking unit or a methyl-tert-butyl ether unit. A fluid catalytic cracking unit is effluent typically contains about 40-60 weight percent normal butenes. A 16 methyl-tert-butyl ether unit effluent typically contains 40-100 weight percent 17 normal butene. The feed stream typically contains at least about 40 weight is percent normal butene, for example at least about 65 weight percent normal 19 butene. The terms iso-olefin and methyl branched isO-olefin may be used 20 interchangeably in this specification. 21 22 The process is carried out under isomerization conditions. The 23 hydrocarbon feed is contacted in a vapor phase with a catalyst comprising the 24 SSZ-74. The process may be carried out generally at a temperature from 25 about 625"F to about 950*F (329-510*C), for butenes, for example from about 26 700*F to about 900"F (371-482*C) or from about 350*F to about 650 0 F (177 27 343 0 C) for pentenes and hexenes. The pressure ranges from subatmosplieric 28 to about 200 psig (1.38 Mpa gauge), for example from about 15 psig to about 29 200 psig (0.103 to 1.38 Mpa gauge) or from about 1 psig to about 150 psig 30 (0.00689to 1.03 Mpa gauge). 31 32 The liquid hourly space velocity during contacting is generally from 33 about D.. to about 50 hr 1 , based 6n the hydrocarbon feed, for example from -37i about 0.1 to about 20 hr', from about 0.2 to about 10 hr-, or from about 1 to 2 about 5 hr. A hydrogen/hydrocarbon molar ratio is maintained from about 0 3 to about 30 or higher. The hydrogen can be added directly to the feed stream 4 or directly to the isomerization zone. The reaction is-typically substantially free 5 of water, typically less-than about two weight percent based on the feed. The 6 process can be-carried out in a packed bed reactor, a fixed bed, fluidized bed 7 reactor, or a moving bed reactor. The bed of the catalyst can move upward or 8 downward. Themniole percent conversion of, e.g., normal butene to iso-butene 9 is at least 10, for example at least 25 or at least 35. 10 II Xylene Isomerization 12 13 SSZ-74 may also be useful in a process for Isomerizing one or more 14 xylene isomers in a C 8 aromatic feed to obtain ortho-, meta-, and para-xylene is in a ratio approaching the equilibrium value. In particular, xylene isomerizatibn 16 is used in conjunctiOn with a separate process to manufacture para-xylene. 17 For example, a portion of the para-xylene in a mixed Cs aromatics stream may is be recovered by crystallization and centrifugation. The mother liquor from the 19 crystallizer is then reacted under xylene isomerization conditions to restore 20 ortho-, meta- and para-xylenes to a near equilibrium ratio. At the same time, 21 part of the ethylbenzene in the mother liquor is converted to xylenes or to 22 products which are easily separated by filtration. The isomerate is blended 23 with fresh feed and the combined stream is distilled to remove heavy and light 24 by-products. The resultant Ca aromatics. stream is then sent to the crystallizer 25 to repeat the cycle. 26 27 :Optionally, isomerization in the vapor phase is conducted in the 28 presence of:3.0 to 30.0 moles of hydrogen-per mole of alkylbenzene (e.g., 29 ethylbenzene). tf hydrogen is- used, the catalyst should comprise about 0.1 to 30 2.0 Wt..% of a hydrogenation/dehydrogenation component selected from 31 Group VIII (of the Periodic Table) metal component, especially platinum or 32 nickel. By Group Vill metal component-is meant the metals and their 33 compounds-such as oxides and sulfides. -38- 2 Optionally, the isomerization feed may contain 10 to 90 wt. of a diluent 3 such as toluene, trirethylbenzene, naphthenes or paraffins. 4 5 Oligomerization 6 7 It is expected that SSZ-74 can also be used to oligomerize straight and 8 branched chain olefins having.from about 2 to 21, for example 2-5 carbon 9 atoms; The oligomers which are the products of the process.are.medium to 1o heavy olefins which are useful for both fuels, i.e., gasoline or a gasoline I1 blending stock and chemicals. 12 13 The oligomerization process comprises contacting the olefin feedstock 14 in the gaseous or liquid phase with a catalyst comprising SSZ-74. 15 16 The molecular sieve can have the original cations associated therewith 17 replaced by a wide variety of other cations according to techniques well 18 known in the art. Typical cations would include hydrogen, ammonium and 19 metal cations including mixtures of the same. Of the replacing metallic 20 cations, cations of metals such as rare earth metals, manganese, calcium, as 21 well as-metals of Group I of the Periodic Table, e.g., zinc, and Group VII1 of 22 the Periodic Table, e.g., nickel are particularly desirable. One of the prime 23 requisites is that the molecular sieve have a fairly low aromatizaticon activity, 24 i.e., in which the amount of aromatics produced is not more than about 20% 25 by weight. This is accomplished by using a molecular sieve with controlled 26 acid activity [alpha value] of from about 0.1 to about 120, for example from 27 about 0.1 to. about 100, as measured by its ability-to crack n-hexane. 28 29 Alpha values are defined by a standard test known in the art, e.g., as 30 shown. in U.S. Patent No. 3,960,978 issued on June 1: 1976 to Givens et al. 31 which is incorpOrated totally herein-by reference. If required, such molecular 32 sieves may be obtained by steaming, by use in a conversion process or by 33 any other method which may occur to one skilled in this art. -39- .

2 Condensation of Alcohols 4 .SSZ-74 can be used tocondense lower aliphatic alcohols having I to 5 10 carbon atoms to a. gasoline boiling point hydrocarbon product comprising 6 mixed aliphatic and aromatic hydrocarbon. The process disclosed in U.S. 7 Patent No. 3,894,107,. issued July 8, 1975 to. Butter et al., describes the a process conditions used in this process,.which patent is incorporated totally 9 herein by reference. i i The catalyst may be in the hydrogen form or may be base exchanged 12 or impregnated to contain ammonium or a metal cation complement, typically 13 in the range of from about 0.05 to 5% by weight. The metal cations that may 14 be present include any of the metals of the Groups I through VIII of the is Periodic Table. However, in the case of Group IA metals, the cation content 16 should in no case be so large as to effectively inactivate the catalyst,. nor 17 should the exchange be such as to eliminate all acidity. There may be other 18 processes involving treatment of oxygenated substrates where a basic 19 catalyst is desired. 20 21 Methane Upgrading 22 23 Higher molecular weight hydrocarbons can be formed from lower 24 molecular. weight hydrocarbons by contacting.the lower molecular weight 25 hydrocarbon with a catalyst comprising SSZ-74 and a metal or metal 26 compound- capable of converting the lower molecular Weight hydrocarbon to a 27 higher molecular weight hydrocarbon. Examples-of such'reactions include the 28 conversion of methane to C 2 + hydrocarbons such as ethyldne or benzene or 29 both. Examples of useful metals and metal compounds include lanthanide and 30 or'actinide metals or metal compounds. 31 32 . These reactions, the metals or metal compounds employed and the 33 conditions under which they can be run are disclosed in U.S. Patents No. -40- 1 4,734,537, issued March 29, 1988 to Devries et al.; 4,939,311, issued July 3, 2 1990 to Washecheck et al.; 4,962,261, issued October 9, 1990 to Abrevaya et 3 al..; 5,0,95,161,. issued March 1.0, 1992 to Abrevaya.et.al.; 5,105,044, issued 4 April 14,. 1992 to Han et al.; 5,105,046, issued April 14, 1992 to Washecheck; 5 5,238,898, issued August 24, 1993 to Han et al.; 5,321,185, issued June 14, 6 1994 to van der Vaart; and 5,336,825, issued August 9,1994 to Choudhary et 7 al.,.each of which is incorporated herein by reference in its entirety. 8 9 Polymerization of 1-Olefins 10 i I The molecular sieve of the present invention may be used in a catalyst 12 for the polymerization of 1-olefins, e.g., the polymerization of ethylene. To 13 form the olefin polymerization catalyst, the molecular sieve as hereinbefore 14 described is reacted with a particular type of organometallic compound. 15 Organometallic compounds useful in forming the polymerization catalyst. 16 include trivalent and tetravalent organotitanium and organochromium . 17 compounds having alkyl moieties and, optionally, halo moieties. In the context 18 of'the present invention the term "alkyl" includes both straight and branched 19 chain alkyl, cycloalkyl and alkaryl groups such as benzyl. 20 21 Examples of trivalent and tetravalent organochromium and 22 organotitanium compounds are disclosed in U.S. Patent No. 4,376,722, 23 issued March .15, 1983 to Chester et al., U.S. Patent No. 4,377,497, issued 24 March 22,-1983 to Chester et al.; U.S. Patent No:.4,446,243, issued May 1, 25 1984 to Chester et al:, and U.S. Patent No. 4;526,942, issued July 2,1985 to 26 Chester et al. The disclosure of the aforementioned patents are incorporated 27 herein by reference in their entirety. 28 29 -Examples of-the organometallic compounds used to form the' 30 polymerization catalyst include, but are not limited to, compounds 31. corresponding to the general formula: 32 -41- - 2 MAlkxHal-x .3 4 wherein M is a metal selected from titanium and chromium; Alk is alkyl; Hal is 5 halogen (e.g., Cl or Br); x is 1-4; and m is greater than or equal to x and is 3 6 or 4. 7 8 Examples of orgariotitanium and organochromium compounds 9 encompassed by such a formula include compounds of the formula CrAlk4, io CrAlk 3 , CrAlk 3 Hal, CrAlk 2 Hal; CrAlk 2 Hal 2 , CrAlkHal 2 , CrAlkHal 3 , TiAlk 4 , TiAlk 3 , iI TiAlk 3 Hal. TiAlk 2 Hal, TiAlk 2 Hal 2 , TiAlkHal 2 , TiAlkHalb , wherein Hal can be Cl 12 or Br and Alk can be methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, 13 tert-butyl, pentyl, isopentyl, neopentyl, hexyl, isohexyl, neohexy), 2-ethybutyl, 14 octyl, 2-ethylhexyl, 2,2-diethylbutyl, 2-isopropyl-3-methylbutyl, etc., is cyclohexylalkyls such as, for example, cyclohexylmethyl, 2-cyclohexylethyl, 3 16 cyclyhexylpropyl, 4-cyclohexylbutyl, and the corresponding alkyl-substituted 17 cyclohexyl radicals as, for example, (4-methylcyclohexyl)methyl, neophyl, i.e., is beta, beta-dimethyl-phenethyl, benzyl, ethylbenzyl, and p-isopropylbenzyl. 19 Desirable examples of Y include C 1

.

5 alkyl, especially butyl. 20 21 The organotitanium and organochromiurn materials employed-in the 22 catalyst can be prepared by techniques well known in the art. See, for 23 example the aforementioned Chester et al. patents. 24 - 25 - The organotitanium or organochromium compounds can be with the 26 molecular -sieve of the present invention. such as by reacting the 27 organometallic compound and the molecular sieve, in order to form the olefin 28 polymerization. catalyst. Generally, such a reaction takes place in the same 29 reaction medium used to prepare the organometallic compound under 30 conditions which -promote formation of-such a reaction product: The molecular 31 sieve can simply be added to the reaction mixture after formation of the 32 organometallic compound has been completed. Molecular sieve is added in 33 an amount sufficient to provide from about 0.1 to 10 parts by weight, for -42- I example from about 0.5 to 5 parts by weight, of organometallic compound in 2 the reaction medium per 100 parts by weight of molecular sieve. 3 4 Temperature of the reaction medium during reaction of organometallic s c6mp6uidwith molecular sieve -is also maintained at a-Ilevel w1ich is low 6 enough: to ensure the'stability of the organometallic reactant. Thus, 7 temperaturds in the range of from about -150" C-. to 50' C., for example from 8 about -80 - C.to 0" C. can be usefully employed.- Reaction times of from about 9 0.01 to 10 hours,r more for example from about'O.1 to 1 hour, can be 1o employed- in'reacting the organotitanium or organochromium compound with ii the molecular sieve. 12 13 Upon completion of the reaction, the catalyst material so formed may 14 be recovered and dried by evaporating the reaction medium solvent- under a 15 nitrogen atmosphere. Alternatively, olefin polymerization reactions can be 16 conducted in this same solvent based reaction medium used to form the 17 catalyst. 18 19 The -polymerization. catalyst can be used to catalyze polymerization of 20 1 -lefins:-The polymers produced using the catalysts of this invention are 21 normally solid polymers of at least-one mono-1-olefin containing from 2 to 8 22 carbon atoms permolecule.These polymers are normally solid 23 homopolymers of ethylene or copolymers of ethylene with another mono-1 24 olefin containing 3 to 8 carbon atoms per molecule. Exemplary copolymers 25 include those of ethylene/propylene, ethylene/1-butene, ethylene/1-hexane, 26 and ethylerie/1-bctene and the like. The rhajor portion of such copolymers is 27 derived from ethylene and generally consists of about 80-99, for example 95 28 99 mole percent- of ethylene ~These polymers are well suited-for extrution, 29 blow molding, injection molding and the like.' 31 The polymerization reaction can be conducted by contacting monomer 32 or monomers, e.g., ethylene, alone-or with one or more other olefins, and in 33 the substantial absence ofcatalyst poisons such as rnoisture and air, with a -43-:i catalytic amount of the supported organometallic catalyst at a temperature 2 and at. a pressure sufficient to. initiate the polymerization reaction. If desired, 3 an inert organic solvent may be used as a.diluent and to facilitate materials 4 handling if the polymerization reaction is conducted with the reactants. in the 5 liquid phase, e.g. in a particle form. (slurry) or solution process. The reaction 6 may also be conducted with reactants in the vapor phase, e.g., in a fluidized 7 bed arrangement in the absence of a solvent but, if desired, in the.presence of 8 an inert gas such as nitrogen. 9. 10 The polymerization reaction is carried out at temperatures of from II about 30* C. or less, up to about 200* C. or more, depending to a great extent 12 on the operating pressure, the pressure of the olefin monomers, and the 13 particular catalyst being used and its concentration. Naturally, the selected 14 operating temperature' is also dependent upon the desired polymer melt index is since temperature is definitely a factor in adjusting the molecular weight of the 16 polymer. Typically, the. temperature used is from about 30* C. to about 1000 17 C. in a conventional slurry or "particle forming" process. or from 100* C.. to 18 150* C. in a 'solutionforming" process. A temperature of from about 70* C to 19 1100 C. can be employed for fluidized bed processes. 20 21 The pressure to be used in the polymerization reactions can be any 22 pressure sufficient to initiate the polymerization of.the monomer(s) to high 23 molecular weight polymer. The pressure,-therefore, can range from 24 subatm6spheric-pressures using an inert gas as diluent, to superatmospheric 25 pressures of upto about 30,000 psig or more, for example-from atmospheric 26 (0 psig) up to about 1000 psig. As a general rule,:a pressure of -20 to 800 psig 27 is desirable. 28 ' - - ' 29 . The selection of an inert organic solvent medium to be employed in the 30 solution or slurry process embodiments of this invention is not too critical, but 31 the'solvent-should be inert to the supported organometallic catalyst and olefin 32 polymer produced, .and be stable at the reaction temperature used. It is not 33 necessary, however, that the inert organic solvent medium also serve as a -44- I solvent for the polymer to be produced. Among the inert organic solvents 2 applicable for such purposes may be mentioned saturated aliphatic 3 hydrocarbons having from-about 3 to 12 carbon atoms per molecule such as 4 hexarie, heptane, pentane, isooctane, purified kerosene-and the like, s saturated cycloaliphatic hydrocarbons having from about 5 to 12 carbon 6 atoms per molecule such as cyclohexane, cyclopentane. 7 dimethylcyclopentane and methylcyclohexane and the like and aromatic 8 hydrocarbons having from about 6 to 12 carbon atorms per molecule such as 9 benzene, tolOene, xylene, and the like. Particularly desirable solvent media io are cyclohexane, pentane, hexane and heptane. 11 12 Hydrogen can be introduced into the polymerization reaction zone in 13 order to decrease the molecular weight of the polymers produced (i.e., give a 14 much higher Melt Index, MI). Partial pressure of hydrogen when hydrogen is 15 used can be within the range of 5 to 100 psig, for example 25 to 75 psig. The 16 melt indices of the polymers produced in accordance with the instant Invention 17 can range from about 0.1 to about 70 or even higher. 18 19 More detailed description of suitable polymerization conditions 20 including examples of particle form, solution and fluidized bed polymerization 21 arrangements are found in Karapinka; U.S. Pat. No. 3,709,853; Issued Jan. 9, 22 1973 and Karol et al; U.S. Pat. No. 4,086,408; Issued Apr. 25, 1978. Both of 23 these patents ai-e incorporated herein by reference. 24 25 Hydrotreating 26 - -. 27 SSZ-74 is useful in a hydrotreating catalyst.. During hydrotreatment, 28 oxygen, Sulfur and nitrogen present in the hydrocarbonaceous feed is reduced 29 to low levels. Aromatics and olefins, if present in the feed, may also have their 30 double bonds saturated. In.some cases, the hydrotreating catalyst and 31 hydrotreating conditions are selected to minimize cracking reactions, which 32 can reduce the yield of the most desulfided product (typically useful as a fuel). 33 -45- I Hydrotreating conditions typically include a reaction temperature 2 between 400-900*F (204-4824C), for example 650-850OF (343-4544C); a 3 pressure between 500 and 5000 psig (3.5-34.6 Mpa), for example 1000 to 4 3000 psig (7.0-20.8 MPa); a'feed rate (LHSV) of 0.5 hrto< (v/v) and 5 overall hydrogen consurription 300 to 2000 scf per barrel of liquid hydrocarbon 6 feed (53.4-356 rn 3 m 2 /rn feed . The hydrotreating catalyst will typically be a 7 composite of a Group Vi metal or compound thereof, and'a Group VIII metal 8 or compound thereof supported on the molecular sieve of this invention.. 9 Typically, such fiydrotreating catalyst ate presulfided. lo II Catalysts useful for hydrotreating hydrocarbon feeds are disclosed in 12 U.S. Patents No. 4,347,121, issued August 31,1982 to Mayer et.al, and 13 4,810,357, issued March 7, 1989 to Chester et al, both of which are 14 incorporated herein by reference in their entirety. Suitable catalysts include i5 noble metals from Group VIII, such as Fe, Co, NI, Pt or Pd, and/or Group VI 16 metals, such as Cr, Mo; Sn or W. Examples of combinations of Group VIII and 17 Group VI metals include Ni-Mo or Ni-Sn. Other suitable catalysts are 18 described in U. S. Patents No. 4,157,294; issued June 5, 1979 to lwao et al, 19 and 3,904,513, issued September 9, 1975 to Fischer et al. U. S. Patent No. 20 3,852,207, issued December 3, 1974.to. Strangeland et al, describes. suitable 21 noble metal catalysts and-mild hydrotreating conditions. The contents of these 2: patents are hereby incorporated by reference. 23 24 The. amount of hydrogenation corriponent(s) in the catalyst suitably 25 range from about 0.5% to about 10% by weight of Group Vill co'mponent(s) 26 and ffom 5% to about 25% by weight of Group VI. Metal component(s), 27 calculated- as metal oxide(s) per 100 parts by weight of total catalyst.*,.Where 28 the percentages by weight are based on the Weight of the catalyst before 29 sulfiding. The hydrogenation component(s) in the catalyst may-be in the oxidic 30 and/or sulfidic form. 31 -460.

Hydrogenation 2 3 SSZ-74 can be used in a catalyst to catalyze hydrogenation of a 4 hydrocarbon feedcontaining unsaturated hydrocarbons. The unsaturated 5 hydrocarbons can comprise olefins, dienes, polyenes, aromatic compounds 6 and the like. 7 8 Hydrogenation is accomplished by contacting the hydrocarbon feed 9 containing unsaturated hydrocarbons with hydrogen in the presence of a 10 catalyst comprising SSZ-74. The catalyst can also contain one or more metals I of Group VIB and Group Vill, including salts, complexes and solutions thereof. 12 Reference to these catalytically active metals is intended to encompass such 13 metals or metals in the elemental state or in some form such as an oxide, 14 sulfide, halide, carboxylate and the like. Examples of such metals include 1s metals, salts or complexes wherein the metal is selected from the group 16 consisting of platinum, palladium, rhodium, iridium or combinations thereof, or 37 the group -consisting of nickel, molybdenum, cobalt, tungsten, titanium, Is chromium, vanadium, rhenium, manganese and combinations thereof..'. 19 20 The hydrogenation component of the catalyst (i.e., the aforementioned 21 metal) is present in an amount effective to provide the hydrogenation function 22 of the catalyst, for example in the range of fromQ0.05 to 25% by weight. 23 24 -Hydrogenation conditions; such as temperature, pressure,. space 25 velocities, contact time and the like are well knowri in the art:. 26 27 Reduction-of Oxides..of Nitrogen 28 29 SSZ-74 may be used'for the catalytic reduction of the oxides of 30 nitrogen in a:gas stream. Typically; the gas stream also- contains oxygen, 31 often a stoichiometric excess thereof. Also, the molecular sieve may contain a 32 metal or metal ions within or on it which are capable of catalyzing the 33 reduction of the nitrogen oxides. Examples of such metals or metal ions. .47 I include cobalt, copper, platinum, iron, chromium, manganese, nickel, zinc, 2 lanthanum, palliadiun, rhodiun and mixtures thereof. 3 4 One example of such a process for the catalytic reduction of oxides of 5 nitrogen in the presence of a zeolite is disclosed in U.S. Patent No. 4,297,328, 6 issued October 27, 1981to Ritscher dt al. Whidh is incorporated by reference 7 herein. There, the catalytic process is the com bustion of carbon monoxide a and hydrocarbons and the catalytic reduction of the oxides of nitrogen 9 contained in a gas stream, such as the exhaust gas from an internal )o combustion engine. The zeolite used is metal ion-exchanged, doped or u loaded sufficiently so as to provide an effective amount of catalytic copper 12 metal or copper ions within or on the zeolite. In addition, the process is 13 conducted in an excess of oxidant, e.g., oxygen. 14 15 Partial Oxidation. 16 17 The partial oxidation of low value hydrocarbons such as alkanes and 18 alkenes into.high value products such as alcohols and epoxides is of great 19 commercial interest. These oxidation products are not only valuable as is, but 20 also as intermediates for specialty chemicals including pharmaceuticals and 21 pesticides. 22 23 :U.S. Patent No.'4,410,501, issued October 18, 1983 to Esposito et al., 24 discloses a titanium-containing analogue of the all-silica ZSM-5 molecular 25 sieve. This material (known as "TS-1") has been found to be useful in 26 catalyzing-a wide range of partial oxidation chemistries, for example the 27 production of catechol and hydroquinone from phenol and hydrogen peroxide 28 (H 2 0 2 ) and the manufacture of propylene oxide.and cyclohexanone oxime 29 from propylene and cyclohexanone, respectively. In addition, TS-1 can be 30 used to catalyze the reaction of alkanes and aqueous H 2 0 2 to form alcohols 31 and-ketones. (See Huybrechts, D.R.C. et al., Nature 1990, 345, 240-242 and 32 Tatsumi;:T. et al., J.C.S. Chem.- Commun. .1990, 476-477.) 33 -48- I TS-1 has many salient features, other than its catalytic abilities, which 2 make it attractive as a commercial catalyst. Most importantly, it is a solid. This 3 allows for easy separation from the reactants and products (typically liquids) 4 by simple, inexpensive filtration. Moreover, this solid has high thermal stability 5 and. a very longlifetime. Calcination in air at moderate temperatures (550*C) 6 restores.the material to its original catalytic ability. TS-1 performs best at mild 7 temperatures (<100*C) and pressures (1 atm). The oxidant used for reactions 8 catalyzed by. TS-1 is aqueous H 2 0 2 , which is important because aqueous 9 H 2 0 2 is relatively inexpensive and its by-product is water. Hence, the choice io of okidant is.favorable from-both a commercial and environment[ point of i.i view. 12 13 While a catalyst system based on TS-1 has many useful features, It 14 has one serious drawback. The zeolite structure of TS-1 includes a regular 15 system (f pores which are formed by nearly circular-rings of ten silicon atoms 16 (called 10-membered rings, or simply "10 rings") creating pore diameters of 17 approximately 5.5.A. This small size results in the exclusion of molecules 18 larger than 5.5 A. Because the catalytically active sites are located within the ig pores of the zeolite, any exclusion of molecules from the pores results in poor 20 catalytic activity. 21 22 . SSZ-74 containing titanium oxide (Ti-SSZ-74) is useful as a catalyst in 23' oxidation reactions, particularly in the oxidation of hydrocarbons. Examples of 24 such reactions include, but are not limited to, the epoxidation of olefins, the 26 oxidation of alkanes, and the oxidation of sulfur-containing, nitrogen 26 containing or phosphorus-containing compounds.

27 28 .. The..amount of Ti-SSZ-74'catalyst employed is not critical, but should. 29 be- sufficient so as to substantially accomplish -the desired oxidation reaction in 30 a practicably short period of time (i.e., a catalytically effective amount). The 31 optimum quantity of catalyst will depend upon- a number of factors including 3z reaction temperature,- the reactivity and concentration of the substrate, 33 hydrogen peroxide concentration, type and concentration of organic solvent, -49- I as well as the activity of the catalyst. Typically, however, the amount of 2 catalyst will be.from about 0.001 to 10 grams per mole of substrate. 3 4 Typically, the Ti-SSZ-74 is thermally treated (calcined) prior to use as a 5 catalyst. 6 7 The oxidizing agent.employed in the oxidation processes of this 8 invention is a hydrogen peroxide source such as. hydrogen peroxide (H 2 0 2 ) or 9 a hydrogen peroxide precursor (i.e., a compound which under the oxidation 10 reaction conditions is capable of generating or liberating hydrogen peroxide). 11 12 The amount of hydrogen peroxide relative to the amount of substrate is 13 not critical, but must be sufficient to cause oxidation of at least some of the 14 substrate: Typically, the molar ratio of hydrogen peroxide to substrate is from i5 about 100:1 to about 1:100, for example 10:1 to about 1:10. When the 16 substrate is an olefin containing more than one carbon-carbon double bond, 17 additional hydrogen peroxide may be required. Theoretically, one equivalent t8 of hydrogen peroxide is required to oxidize one equivalent of a mono ig unsaturated substrate, but it may be desirable to employ an excess of one 20 reactant to optimize selectivity to the epoxide. In particular, the use of a 21 moderate to large excess (e.g., 50 to 200%) of olefin relative to hydrogen 22 peroxide may-be advantageous for certain substrates. 23 24 If desired, a solvent may additionally be present during the oxidation 25 reaction in-order to dissolve-the reactants other than the-Ti-SSZ-74, to provide 26 better temperature control, or to favorably influence the oxidation rates and 27 selectivities. -The solvent, if present, may comprise from .1 to 99 weight 28 percent of the total oxidation reaction mixture and is desirably selected such 29 that it.is a liquid at the'oxidation reaction temperature. Organic compounds 30 having boiling- points at atmospheric pressure of from about.50C to about 31 150 0 C are generally desirable for use. Excess hydrocarbon may serve as a 32 solvent or diluent. Illustrative examples of other suitable solvents include, but 33 are not limited to, ketones (e.g., acetone; methyl ethyl ketone, acetophenone), -50i ethers (e.g., tetrahydrofuran, butyl ether), nitriles (e.g., acetonitrile), aliphatic 2 and aromatic hydrocarbons, halogenated hydrocarbons, and alcohols (e.g., 3 methanol, ethanol, isopropyl alcohol, t-butyl alcohol, alpha-methyl benzyl 4 alcohol, cyclohexanol). More than one type of solvent may be utilized. Water 5 may also be employed as a solvent or diluent.. 6 7 The reaction temperature is not critical, but should be sufficient to 8 accomplish substantial conversion of the substrate within a reasonably short 9 period of time: It is generally advantageous to carry out the reaction to 3o achieye as high a hydrogen peroxide conversion as possible, typically at least i I about 50%, for example at least about 90% or at least about 95%, consistent 12 with reasonable selectivities. The optimum reaction temperature will be 13 influenced by catalyst activity, substrate reactivity, reactant concentrations, 14 and type of solvent employed, among other factors, but typically will be in a. 15 range of from about O'C to about 150 0 C (for example from about 25'C'to 16 about 120*C). Reaction or residence times from about one minute to about 48 v7 hours (for example from about ten minutes to about eight hours) will typically is be appropriate, depending upon the above-identified variables. Although 19 subatmospheric pressures can be employed, the reaction Is typically 20 performed at atmospheric or at elevated pressure (typically, between one and 21 100 atmospheres), especially when the boiling pointof the substrate.is below 22 the oxidation reaction temperature. Generally, it'la desirable to pressurize the 23 reaction vessel sufficiently to maintain the reaction components as a liquid 24 phase -mixture. Most (over 50%) of the substrate should desirably be present 25 in the liquid phase. 26 27 :The oxidation'process of this invention may be carried out.in a batch, 28 continuous, or semi-tontinuous manner using- any appropriate type of reaction 29 vessel or-apparatus such as a fixed bed, transport bed, fluidized bed, stirred 30 slurry, or CSTR reactor. The reactants may be combined all at once or 31 sequentially. For example, the hydrogen peroxide or hydrogen peroxide 32 precursor may be added incrementally to-the reaction zone. The hydrogen -51- I peroxide could also be generated in situ within the same reactor zone where 2 oxidation is taking place. 3 4 Once the oxidation has been carried out to the desired degree of 5 conversion, the 6xidized product may be separated and recovered frorn'the 6 reaction mixture using any apropriate technique such as fractional 7 distillation, extractive distillation, liquid-liquid extraction, cryStallization, or the 8 like. 9 Olefin Ep oxidation 12 One of the oxidation reactions for which Ti-SSZ-74 is useful as a 13 catalyst is the epoxidation of olefins. The olefin substrate epoxidized in the 14 process of this invention may be any organic compound having at least -one 15 ethylenically unsaturated functional group (i.e., a carbon-carbon double bond) 16 and may be a cyclic, branched or straight-chain olefin. The olefin may contain i7 aryl groups (e.g., phenyl, naphthyl). Typically, the olefin is aliphatic in 18 character and contains from 2 to about 20 carbon atoms. The use of light 19 (low-boiling) C 2 to C 10 mono-olefins ,is especially advantageous. 2a 21 More than one carbon-carbon double bond may be present in the 22 olefin, i.e., dienes, trienes and other polyunsaturated substrates may be used. 23 The double bond may be in a terminal -or internal position in the olefin or may 24 alternatively form part of a cyclic structure (as in cyclooctene, for example). 25 26 Other examples of suitable substrates include unsaturated fatty acids 27 or-fatty acid derivatives: such as esters. . 28 29 -The olefin.may contain substituents other than hydrocarbon 30 substituents such as halide, carboxylic acid, ether, hydroxy, thiol, nitro, cyano, 31 ketone, acyl, ester, anhydride, amino; and the like. - . 32 -.52- Exemplary olefins suitable for use in the process of this invention 2 include ethylene, propylene, the butenes (i.e., 1,2-butene, 2,3-butene, .3 isobutylene), butadiene; the pentenes, isoprene,, 1-hexene, 3-hexene, 1 4 heptene, 1-octene, diisobutylene, 1-nonene, 1-tetradecene, pentamyrcene, 5 camphene, 1-undecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1 6 pentadecene, 1-hexadecene, 1-heptadecene, 1.-octadecene, .1 -nonadecene, 7 1-eicosene, the trimers and tetramers of propylene, cyclopentene;. .8 cyclohexene, cycloheptene,. cyclooctene, cyclooctadiene, dicyclopentadiene, 9 methylenecyclopropane, methylenecyclopentane, methylenecyclohexane, io vinyl cyclohexane, vinyl cyclohexene, methallyl ketone, allyl chloride, the 11 dichlorobutenes, allyl alcohol, allyl carbonate, allyl acetate, alkyl acrylates and 12 methacrylates, diallyl maleate, diallyl phthalate, and unsaturated fatty acids, 13 such as oleic acid, linolenic acid, linoleic acid, erucic acid, palmitoleic acid, 14 and ricinoleic acid and their esters (including mono-, di-, and triglyceride is esters) and the like. 16 17 . Olefinswhich are especially useful for epoxidation are the C 2

-C

20 18 olefins having the general structure 19 20

R

3

R

4

C=CR

5

R

6 21 22 wherein R3, R 4 , -R5 and -R 6 are the same or different and are selected from the 23 group consisting of hydrogen and C 1

-C

18 alkyl. 24 25 Mixtures of olefins may be. epoxidized and the resulting mixtures of 26 epoxides either employed in the mixed form or separated into the different 27 component epoxides.. 28 - 29 The present invention further provides a process for oxidation of 30 hydrocarbons comprising contacting said hydrocarbon with hydrogen.peroxide 31 in the presence of a catalytically effective amount of Ti-SSZ-74 for a time and 32 at a temperature effective to oxidize said hydrocarbon. 33 -53- Acylation 2 3 The molecular sievje.of the present.invention can be used in a catalyst for 4 acylating an aromatic.substrate ArH,, where.:n is. at least 1, by reacting the 5 aromatic substrate.with an acylating agent in the presence of the catalyst. The 6 product of the acylation reaction is ArHn-ICOR where R is an organic radical. 8 Examples pf the aromatic-substrate include, but are not limited to, - 9 benzene; toluene, anisole and 2--naphthol.. Examples.of the.acylating agent 10 included, -but-are not limited to, carboxylic acid derivatives, carboxylic acids, iI acid anhydrides, esters, and acyl halides. 12 13 Reaction conditions are known in the art (see, for example. U. S. 14 Patent No. 6,630,606, Issued October 7, 2003 to Poliakoff et al., U. S. Patent is No. 6,459,000, issued October 1, 2002 to Choudhary et al., and U. S. Patent 16 No. 6,548,722, issued April 15, 2003 to Choudhary et al., all of which are 17 incorporated herein by reference in their entirety);Typically, the acylation 18 reaction is conducted with a weight ratio of the catalyst to the acylating. agent 19 of about 0.03 to about 0.5, a mote ratio of aromatic substrate to acylating 20 agent of about 1.0 to about 20, a reaction temperature in the range of about 21 20'C to about 200 0 C, a reaction pressure in the range of about 1 atm to about 22 5 atm, and a reaction time of about 0.05 hours to about 20 hours. 23 24 Oxygenate Conversion 25 26 The present invention cormprises a process for catalytic conversion of a 27 feedstock comprising one or more oxygenates comprising alcohols and ethers 28 to a hydrocarbon product containing light olefins,.i.e., C 2

,C

3 and/or C 4 olefins. 29 The feedstock -is contacted with the molecular sieve of the present invention 30 at effective- process conditions to producelight olefins. 31 -54- I The term "oxygenate" as used herein designates compounds such as 2 alcohols, ethers and mixtures thereof. Examples of oxygenates include, but 3 are not limited,.to, methanol and dimethyl ether-. 5 T.he process of.the present invention may be conducted in-the 6 presence.of one or more.diluents which. may be present in the oxygenate feed -7 in an amount between about 1 and about 99 molar percent, based on the total s number of moles of all feed and diluent components. Diluents include, but are 9 not limited to, helium, argon, nitrogen, carbon monoxide, carbon dioxide, 1o hydrogen, water, paraffins, hydrocarbons (such as methane and the like), II aromatic compounds, or mixtures thereof. U. S. Patents No. 4,861,938 and 12 4,677,242, which are incorporated by reference herein in their entirety, 13 emphasize the use of a diluent to maintain catalyst selectivity toward the 14 production of light olefins, particularly ethylene. 15 16 The oxygenate conversion is desirably- conducted in the vapor phase 17 such that the oxygenate feedstock is contacted in a vapor phase in. a reaction is zone with the molecular sieve of this invention at effective process conditions 19 to produce hydrocarbons, i.e., an effective temperature, pressure, weight 20 hourly space velocity (WHSV) and, optionally, an effective amount of diluent. 21 The process is-conducted for a period of time sufficient to produce'the desired 22 light olefins. In general, the residence time employed. to produce the desired 23 product can vary from seconds to a number of hours. It will be readily 24 appreciated that the residence time will be determined to a significant extent 25 by the reaction temperature , the molecular sieve catalyst, the WHSV, the 26 phase (liquid or vapor) and process design characteristics. The oxygenate 27 feedstock flow rate affects olefin production. Increasing the feedstock flow 28 rate increases WHSV and enhances the formation of olefin production relative 29 to paraffin: production. However, the enhanced-olefin production relative to 30 paraffin production is offset by a diminished conversion of oxygenate to 31 hydrocarbons. 32 -5 5.- I The oxygenate conversion process is effectively carried out over a 2 wide range of pressures, including autogenous pressures. At pressures 3 between about 0.01 atmospheres (0.1 kPa) and about 1000 atmospheres 4 (101.3 kPa), theformation of light olefiris'will be affected although tie 5 optirrn amount of product Will not necessarily be formed at all pressures. A 6 typical pressure is between about 0.01 atmospheres (0.1 kPa) and abodt 100 7 atmospheres (10.13 kPA), for example from about I to about 10 atmospheres s (101.3 kPa to 1.013 Mpa). The pressures referred to herein are exclusive of 9 the diluent; if any, that is present and refer to the partial pressure of the io feedstock as It relates to oxygenate- compounds. 11 12 The temperature which may be employed in the oxygenate conversion 13 process may vary over a wide range depending, at least in part, on the 14 molecular sieve catalyst. In general, the process can be conducted at an 15 effective temperature between about 200*C and about 700 0 C. At the lower 16 end-of the temperature range, and thus generally at a lower rate of reaction, 17 the formation of the desired light olefins may become low. At the upper end of 18 the-range- the process may not form an optimum amount of light olefins and 19 catalyst deactivation may be rapid. 20 21 -The-molecular sieve catalyst can be incorporated into solid- particles in 22 which the catalyst is present in an amount effective to promote the desired 23 conversion of oxygenates-to light olefins:lIn.one aspect, the solid particles 24 comprise a catalytically effective amount of the catalyst and at least one 25 matrix material: selected from the-group consisting of binder materials, filler 26 materials .and mixtures thereof to provide a desired property or properties, 27 e.g.,;desired. catalyst dilution, mechanical strength and the like to the solid 28 particles. Such:matrix materials are often, to some extent, porous in nature 29 and may or-.may not.be effective to promote the desired reaction. Filler and 30 binder materials include,-for example, synthetic and naturally occurring 31 substances such as metal oxides, clays, silicas, aluminas, silica-aluminas, 32 silica-magnesias, silica-zirconias, -silica-thorias and the like. If matrix materials 33 are included in the catalyst composition, the molecular sieve desirably -56- - I comprises about 1 to 99%, for example about 5 to 90% or about 10 to 80% 2 by weight of the total.composition. 3 4 Gas -Separation 5 6 . . The. molecular sieve of.the present invention. can be. used to separate 7 gasses. For example, it can be used to separate:carbon dioxide -from natural 8 gas. Typically, the molecular sieve is used as a component in a membrane 9 that is-used- to.separate-the gasses. Examples of such-membranes are. io disclosed in-U. S,. Patent No. 6,508,86.0, issued.January 21; 2003 to Kulkarni II et al., which is incorporated by reference herein in its entirety. 12 13 Synthesis of Amines 14 15 . The molecular sieve-of the present invention can be used in a catalyst 16 to prepare methylamine or dimethylamine. Dimethylamine is generally 17 prepared in industrial quantities by continuous reaction of methanol (and/or is dimethylether) and ammonia in the presence of a silica-alumina catalyst. The 19 reactants are typically combined in the vapor phase, at temperatures in the 20 range of:30 0 "C.to 500 0 C,.and at elevated pressures. Such a process is 21- disclosed in U. S. Patent No. 4,737,-592, issued April 12, 1988 to Abrams'et 22 al.,which is incorporated by reference in its entirety. 23 24 The catalyst is usedin its acid form. Acid forms of molecular sieves can 25 be prepared by a variety of techniques. Desirably, the molecular sieve used to 26 prepare dimethylamine will be in the hydrogen form, or have an alkali or 27 alkaline earth metal, such as Na, K, Rb, or Cs, ion-exchanged into it. 28 29 The process of the present invention involves -reacting methanol, 30 dimethylether or a mixture thereof and ammonia in amounts sufficient to 31 provide a carbon/nitrogen (C/N) ratio from about 0.2 to about 1.5, for example 32 about 0.5 to about 1:2. The reaction -is conducted-at a temperature from about 33 250"C to about 450 0 C, for example about 300"C to about -400"C. Reaction --57- I pressures can vary from about 7-7000 kPa (1-1000 psi), for example about 2 70-3000 kPa (10-500 -psi). A methanol and/or dimethylether. space time of 3 about 0.01-8.0 hours, for example 0.10-1.5 hours, is typically used: This space 4 time is calculated as the mass of catalyst divided by-the.nass flow rate of 5 methanol/dimethylether introduced into the reactor. 6 7 Treatment of Engine Exhaust (Cold Start Emissions) 8. 9 . Gaseous- waste products resulting from the combustion pf.. to hydrocarbonaceous fuels, such as gasoline and fue. oils, comprise carbon I monoxide, hydrocarbons and nitrogen oxides asproducts of combustion or 12 incomplete combustion, and pose a serious health problem with respect to 13 pollution of the atmosphere. While exhaust gases from other carbonaceous 14 fuel-burning sources, such as stationary engines, industrial furnaces, etc.; is contribute substantially to air pollution, the exhaust gases from automotive 16 engines are a p-rincipal source of pollution. Because of these health problem 17 concerns, the Environmental Protection Agency (EPA) has -promulgated strict 18 controls on the amounts of carbon monoxide, hydrocarbons and nitrogen 19 oxides which automobiles can emit. The implementation of these controls has 20 resulted in the.use of catalytic converters to reduce the amount of pollutants 2) emitted from automobiles. 22 23 In order to achieve the simultaneous conversion of carbon monoxide, 24 hydrocarbon and nitrogen. oxide pollutants, it has become the practice to.' 25 employ catalysts-in conjunction with air-to-fuel ratio control means which 26 functions in response to a feedback signal from an oxygen sensor in the 27 engine exhaust system. Although these three component control catalysts 28 work quite well after they have reached operating -temperature of-about! 3000 29 C., at lower: temperatures they are not able to convert substantial amounts of 30 the*pollutarts. What.this-means is that when an engine and in particular an 31 automobile engine is started up, the three component control catalysti.is not 32 able to convert the hydrocarbons and other:pollutants-to innocuous 33 compounds. -58- 2 Adsorbent beds have been used to adsorb the hydrocarbons during the 3 cold start portion of the engine. Although the- process typically will be used 4 with hydrocarbon fuels, the instant invention can -also be used'to -treat exhaust 5 stirearns from alcohol fueled engines. The adsorbent bed is-typically played 6 immediately before the catalyst. Thus, the exhaust stream is first flowed 7 through the a'dsorbent bed and then'threogh the'catalyst. The adsorbeht'bed a preferentially adsorbs hydrocarbons over water under the conditions present 9 in the exhaust stream: After a certain amount oftime, the adsorbent bed has io reached a temperature (typically about 150*C.) at which'the bed is no longer I Able to remove hydrocarbons from the exhaust stream. That is, hydrocarbons 12 are actually desorbed from the adsorbent bed instead of being adsorbed. This 13 regenerates the adsorbent bed so that it can adsorb hydrocarbons during a 14 subsequent cold start. 16 The prior art reveals several references dealing with the use of 17 adsorbent beds to minimize hydrocarbon emissions during a cold start engine is operation. One such reference is U.S. Pat. No. 3,699,683 in which orr 19 adsorbent bed is placed after both a reducing catalyst and an oxidizing 20 catalyst.'The patentees disclose that when the exhaust gas stream is below 21 200* C. the gas stream is flowed through the reducing catalyst then through 22 the oxidizing catalyst and finally through the adsorbent bed, thereby adsorbing 23 hydrocarbons on the adsorbent bed. When the temperature. goes above 200* 24 C. the gas stream which is discharged from the oxidation catalyst is divided 25 into amajor and minor portion, the major portion being discharged directly into 26 the atmosphere and the minor portion passing through the adsorbent'bed 27 whereby unburned hydrocarbon is desorbed and then flowing the resulting 28 minor portion of this exhaust stream containing the desorbed unburned 29 hydrocarbons into the engine where they -are burned. 30 31 Another reference is U.S. Pat. No. 2,942,932 which teaches a process 32 for-oxidizing carbon monoxide and hydrocarbons Which are Contained in 33 exhaust gas streams. The.process disclosed in this patent consists of flowing -59i an exhaust stream which is below 8000 F. into an adsorption zone which 2 adsorbs the carbon monoxide and hydrocarbons and then passing the' 3 resultarit stream from this adsorption'zone into an oxidation zone. When the 4 temperature of the exhaust gas stream reaches about 800* F: the exhaust 5 stream is no longer passed through the adsorption zone but is passed directly 6 to the oxidation zone with the addition of excess air. 8 1.' S. Patent No. 5,078,979, issued January 7; 1992'to Dunne, which is 9 incbrporated herein by reference iri its entirety, discloses treatirig an exhaust 10 gas stream from an engine to preVent cold-start emissions using a molecular ii sieve adsorbent bed. Examples of the molecular sieve include faujasites, 12 clinoptilolites, mordenites, chabazite, silicalite, zeolite Y, ultrastable zeolite Y, 13 and ZSM-5. 14 15 Canadian Patent No. -1,205,980 discloses a method of reducing 16 exhaust emissions from an alcohol fueled automotive vehicle: This method 17 consists of directing the cool engine startup exhaust gas through a bed of 18 zeolite particles and then over an oxidation catalyst and then the gas is 19 discharged to the atmosphere. As the exhaust gas stream warms up it is 20 continuously passed over the adsorption bed and then over the oxidation bed. 21 22 As stated, this invention generally relates to a process for treating an 23 engine exhaust'stream and in particular to a process for minimizing emissions 24 during the cold start operation of an engine. The engine consists of any: 25 internal or external combustion engine which generates an-exhaust gas 26 strearn containing noxious components or pollutants including unburned or 27 thermally degraded hydrocarbons or similar organics. Other noxious 28 components usually present in the exhaust gas include nitrogen-oxides and 29 carbon. monoxide. The engine may be fueled by a hydrocarbonaceous fuel. 30 As- used in this specification and in the. appended claims, the term 31 "hydrocarbonaceous fuel'"includes hydrocarbons, alcohols and mixtures 32 thereof. Examples of hydrocarbons which can be used to foel the engine are 3.3 the'rnixtures of hydrocarbons which make up gasoline or diesel fuel. The -60alcohols which may be used to fuel engines include ethanol and methanol. 2 Mixtures of alcohols and mixtures of alcohols and hydrocarbons can also be 3 used. The engine may be a jet engine, gas turbine, internal combustion -4 engine, such as an automobile, truck or bus engine, a diesel engine or the 5 like. The process of this invention is particularly suited- for hydrocarbon, 6 alcohol, or hydrocarbon-aldohol mixture, internal combustion engine mounted 7 in an- automobile, For convenience the description will use hydrocarbon as the 8 fuel to-exemplify-the invention. The use of hydrocarbon in-the'subsequent 9 description is not to be construed as limiting the irivention-to hydrocarbon io fueled-engines. 11. 12 When the engine is started up, it produces a relatively high 13 concentration of hydrocarbons in the engine exhaust gas stream as well as 14 other pollutants. Pollutants will be used herein to collectively refer to any 15 unburned fuel components and combustion byproducts found in the exhaust 16 stream. .For.example, when the fuel is a hydrocarbon fuel, hydrocarbons, 17 nitrogen oxides; carbon monoxide and other combustion byproducts will be 18 found in the engine exhaust gas stream. The temperature of this engine 19 exhaust stream is relatively cool, generally below 500* C. and.typically in the 20 range of .200* to 400* C. This engine exhaust stream. has the above. 21 characteristics'du'ring the initial period of engirie operation, typically for the 22 first-30 to 120 seconds after startup of a cold engine.. The engine exhaust 23 stream will typically contain, -by volume, about 500 to 1000 ppm 24 hydrocarbons. 25 . - - 26 . The engine exhaust gas stream.which is to-be treated is floWed'over a 27 molecular sieve bed comprising molecular sieve SSZ-74 a firSt exhaust 28 stream: Molecular sieVe'SSZ-74 is described herein- The first- exhaust stream 29 which is discharged from the molecular sieve bed is how flowed over.a 30 catalyst to convert the pollutants contained.in the first exhaust strearwto 31 innocuous components and- provide a treated exhaust- stream which is, 32 discharged into the atmosphere. It is understood:that prior to discharge into -61-.

I the atmosphere, the treated exhaust stream may be flowed through a muffler 2 or other sound reduction apparatus well known in the art.. 3 4 The catalyst which is used to convert the pollutants to innocuous 5 components is usually referred to in the art as a three-component control 6 catalyst because it can simultaneously oxidize any residual hydrocarbons 7 present in the first exhaust stream to carbon dioxide and Water,.oxidize any 8 residual carbon monoxide to carbon dioxide and reduce any residual nitric 9 oxide to nitrogen and oxygen. In some cases the catalyst may not be required 10 to convert nitric oxide to nitrogen and oxygen, e.g:, when an alcohol is used I as the fuel. In this case the catalyst is called an oxidation catalyst. Because of 12 the relatively low temperature of the engine exhaust stream and the first 13 exhaust stream, this catalyst does not function at a very high efficiency, 14 thereby necessitating the molecular sieve bed. 15 16 When the molecular sieve bed reaches a sufficient temperature, 17 typically about 150-200* C., the pollutants which are adsorbed in the bed 18 begin to desorb and are carried by the first exhaust stream over the catalyst. 19 At this point.the catalyst has reached its operating temperature and is 20 therefore capable of fully converting the pollutants to innocuous components. 21 22 The adsorbent bed.used in the instant invention-can be conveniently 23 employed in particulate form or the adsorbent can be deposited onto a solid 24 monolithic carrier. When particulate form is desired,:the adsorbent can-be 25 formed into shapes such as-pills, pellets, granules, rings, spheres, etc. In the 26 employment of a -monolithic form, it is-usually most convenient to employ the 27 adsorbent as a thin film or coating: deposited on an inert carrier material which 28 provides the structural support for the adsorbent. The inert carrier material 29 can be any refractory material such as ceramic or metallic materials: It is 30 desirable that the carrier material be unreactive with the -adsorbent and not be 31 degraded by' the gas to which it is exposed. Examples of suitable ceramic.: 32 materials include. sillimanite, petalite, cordierite, mullite, zircon, zircon mullite, 33 spondumene alumina-titanate, etc, Additionally; -metallic materials which are -62i within the scope of this invention include metals and alloys as disclosed in 2 U.S. Pat. No. 3,920,583 which are oxidation resistant and are otherwise 3 capable of withstanding high temperatures. 4 5 The ca rier material can best be utilized in any rigid unitary 6 co nfiguration which provides a plurality of pores or channels extending in the 7 direction of gas flow. The'configuration may be a honeycomb configuration. 8 Thehoneycomb structure can be used advantageously in either unitary form, 9 or as an arrangement of multiple modules. The honeycomb structOre is to usuIlly oriented such that gas flowis generally irthe samd direction as the ii cells or channels of the honeycomb structure. For a more detailed discussion 12 of monolithic structures, refer to U.S. Pat. Nos. 3,785,998 and 3,767,453. 13 14 The molecular sieve is deposited onto the carrier by any convenient is way well known in the art. A desirable method involves preparing-a slurry 16 using the molecular sieve and coating the monolithic honeycomb carrier with 17 the slurry. The slurry can be prepared by means known in the art such as is combining the appropriate amount of the molecular sieve and a binder with 19 water. This mixture is then blended by using means such as sonification, 20 milling, etc. This slurry is used to coat a monolithic honeycomb by dipping the 21 honeycomb into the slurry, removing the excess slurry by draining or blowing 22 out the channels, and heating to about 100* C. If the desired loading of 23 molecular sieve is not achieved, the above process maybe repeated as many 24 times as-required to achieve the desired loading. 25 26 Instead of depositing the molecular sieve onto a monolithic honeycomb 27 structure, one -can take the molecular sieve and form it into a morfolithic 28 honeycomb structure by means known in the art. 29 30 The adsorbent may optionally contain one or'more catalytic metals 31 dispersed thereon. The metals which can be dispersed on the adsorbent are 32 the noble metals which consist of platinum, palladium, rhodium, ruthenium, 33 and mixtures thereof. The desired noble metal may be -deposited onto the -63i adsorbent, which acts as a support, in any suitable manner well known in the 2 art. One example of a method of dispersing the noble metal onto the 3 adsorbent support involves impregnating the adsorbent support with an 4 aqueous solution of a decomposable compound of the desired noble metal or 5 metals, drying the adsorbent which has the noble metal compound dispersed 6 on it and then calcining in air at a temperature of about 4000 to about 5000 C. 7 for a time of about 1 to about 4 hours. By decomposable compound is meant 8 a compound which upon heating in air gives the metal or rnetal oxide. 9 Examples of the decomposable compounds which can be used are set forth io in U.S. Pat. No. 4,791,091 which is incorporated -by reference. Examples of 11 decomposable compounds are chloroplatinic acid, rhodium trichloride, 12 chloropalladic acid, hexachloroiridate (IV) acid and hexachlororuthenate. It is 13 typical that the noble metal be present in an amount ranging from about 0.01 14 to about 4 weight percent of the adsorbent support. Specifically, in the case of is platinumi and palladium the range is 0.1 to 4 weight percent, while in the case 16 of rhodium and ruthenium the range is from about 0.01 to 2 weight percent. 17 These catalytic metals are capable of oxidizing the hydrocarbon and 19 carbon monoxide and reducing the nitric oxide components to innocuous 20 products. Accordingly, the adsorbent bed can act both as an adsorbent and 21 as a catalyst. 22 23 The catalyst which is used in this invention is selected from any three 24 component control or oxidation catalyst well known in the art; Examples of 25 catalysts are those described in U.:S. Pat. Nos. 4,528,279; 4,791,091; 26 4,760,044; 4,868,148; and 4,868,149, which are'all incorporated by-reference. 27 Desirable catalysts well known in the art are those that contain platinum and 28 rhodium'and optionally palladium, while oxidation catalysts usually do not 29 contain-rhodiUM. Oxidation catalysts usually contain. platinum and/or -. 30 palladium metal. These catalysts may also contain promoters and stabilizers 31 such as barium, ceriurm,-anthanum, nickel, and iron. The noble metals 32 promoters and stabilizers are usually deposited on a support such as alumina, 33 silica, titania, zirconia, alumino silicates, and-mixtures thereof with alumina -64i being desirable. The catalyst can be conveniently employed in particulate 2 form or the catalytic composite can be deposited on a solid monolithic carrier 3 with a monolithic carrier'being desirable. The particulate form and monolithic 4 form of the catalyst are prepared as described for the adsorbent above. 5 6 The molecular sieve used in the adsorbent bed is SSZ-74. 7 8 Beckmann Rearrangerrent 9 SThe present invention. relates to'a process fot the prepai-stion of i amides from oximes. The present invention further relates to the use of SSZ 12 74 in the catalytic transformation of oximes, such as cyclohexanone oxime, to 13 amides, such as epsilon-caprolactam (caprolactam), also known as 14 Beckmann catalytic rearrangement. The Beckmann rearrangement is shown is below (where sulfuric acid is used instead of a molecular sieve catalyst). 16 H. NH .N H SO 4 . . . 17 R 18 19 20 Amides, and in particular caprolactam, are known in literature as 21 important intermediates for chemical syntheses and as raw materials for the 22 preparation of polyamide resins. 23 24 caprolactam is produced industrially by cyclohexanone oxime ' 25 rearrangemn in liquid phase using sulfuric acid or oleUm. The rearranged 26 product is neutralized with ammonia causing the joint formation of ammonium 27 sulfate. This technology has numerous problems linked to the use of sulfuric 28 acid, to the formation of high quantities of ammonium sulfate, with relative 29 problems of disposal, corrosion of the equipment owing to the presence of 30 acid vapors, etc. -65- 2 Alternative processes have been proposed in the literature for the 3 catalytic rearrangement of cyclohexanone oxime into caprolactam, in which 4 solids of an acid nature are used, as catalysts, selected from derivatives of 5 boric acid, zeolites, non-zeolitic molecular sieves, solid phosphoric acid, 6 mixed metal.oxides, etc. 7 8 In particular, European patent 234.088 describes a method for.. 9 preparing paprolactarn which comprises putting cyclghexanone oxime in to gaseous state In contact with alumino-silicates of the zeolitic type such as 1i ZSM-5, ZSM-1 1 or ZSM-23 having a "Constraint Index" of between I and 12, 12 an atomic ratio Si/Al of at least 500 (SiO 2 /AI20 3 mole ratio of at least 1,000) 13 and an external acid functionality of less than 5 micro equivalents/g. 14 i s Zeolites, as described In "Zeolite Molecular Sieves" D. W. Breck, John 16 Wiley &*Sons, (1974) or in "Nature" 381 (1996), 295, are crystalline products 17 characterized-by the presence of a regular- microporosity, with channels j8 having dimensions of between 3 and 10 Angstroms. In some particular zeolitic 19 structures there.can be cavities with greater dimensions, of up to about 13 20 Angstroms. 21 22 With the aim of providing another method for the preparation of 23 amides, and in particular of caprolactam, a new.process has now been found 24 which'uses a catalyst.comprising SSZ-74. The present invention therefore 25 relates to a process for the preparation of amides via the catalytic 26 rearrangement of oximes which comprises -putting an oxime -in vapor phase in 27 contact with a catalyst comprising a crystalline molecular sieve having a mole 28 ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) 29 an oxide of a-trivalent element-, pentavalent element, second tetravalent 30 element-which is different from said first tetravalent element or mixture thereof 31 and-having; after calcination, the X-ray diffraction lines of Table iI. The 32 molecular sieve may have a-.mole'ratio greater than. about 15 of (1) silicon -66i oxide to (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, 2 boron oxide, titanium oxide, indium oxide and mixtures thereof. 3 4 Other methods for converting oximes to amides via Beckmann 5 rearrangement are disclosed in U.S. Patent No. $,883,915,issued November 6 28, 1989 to McMahon, which uses a crystalline borosilicate molecular sieve in 7 the catalyst and U.S. Patent No. 5,942,613, issued August 24, 1999 to Carati 8 et al., which uses a mesoporous silica-alumina in the catalyst. Both patents 9 are incorporated by reference herein in their entirety. 10 11 According to the present invention a desirable amide is epsilon 12 caprolactam (caprolactam) and the desirable oxime is cyclohexanone oxime 13 (CEOX). In particular, the catalytic rearrangement of the cyclohexanone 14 oxirne takes place at a pressure of between 0.05 and 10 bars and at a 15 temperature of between 250*C and 500*C., for example between 300*C and 16 450*C. More specifically, the cyclohexanone oxime, in vapor phase, is fed to 17 the reactor containing the catalyst in the presence of a solvent and optionally 18 an incondensable gas. The cyclohexanone oxime is dissolved in the solvent 19 and the mixture thus obtained.is then vaporized and fed to the reactor. The. 20 solvent should be essentially inert to the oxime and the amide, as well as the 21 catalyst. Useful solvents include, but are not limited to, lower boiling 22 hydrocarbons, alcohols and ethers. 24 Desirable solvents'are of the type R" - 0 - R3 wherein R' is a C 1 - C 4 alkyl 25 chain and R 2 can be.a hydrogen atom or an alkyl chain. containing a.number 26 of carbon atoms less than or equal to R'. These solvents can be used alone 27 or mixed with each other or combined with an aromatic -hydrocarbon such as 28 benzene or toluene. Alcohols with a C 1

-C

2 alkyl -chain are particularly 29 desirable.. 30 31 The cyclohexanone oxime is fed to the rearrangement reactor with a weight 32 ratio with respect to the catalyst-which-is such as to give a WHSV. (Weight -67- I Hourly Space Velocity), expressed as Kg. of cyclohexanone oxime/kg of 2 catalystltime, of between 0.1.and 50 hr., for example between 0.5 and 20 3 hr... 4 5 The deterioration of the catalyst is due to the formation of organic residues 6 which. obstruct the pores of the catalyst and poison its active sites. The 7 deterioration process is slow and depends on the operating conditions and in .8 particular the space velocity, solvent, temperature, comppsition.of. the.feeding. 9 The catalytic. activity however can be efficiently reintegrated by. the. to combustion of the residues, by treatment in a stream of air and nitrogen at a II temperature of between 450*C and 600*C. 12 13 EXAMPLES 14 Is The following examples. demonstrate but do not limit the present 16 invention. 17 18 Example I 19 Synthesis of Hexamethylene-1,6,bis-(N-methyl-N-byrrolidiniurnT diction SDA 20 21. ':-r 50 ml of acetone was dissolved 5ml (48 mmoles) of N-methyl 22 pyrrolidine. 4.9 Grams of 1,6 dibromohexane (20 mmoles) were added and 23 the resulting mixture was stirred at room temperature for three days. Solids 24 formed and. were collected by filtration and washed with ether and kept in a 25 vacuum oven. Then 3.71 grams of the dried solid was mixed into 18.7 grams 26 of water and 9.57 grams of AG1-X8 resin for exchange to the OH form. The 27 exchange was run overnight and then the solution was collected and titrated. 28 29 Example 2 30 Synthesis of All-Silica SSZ-74 31 32 6.4 Grams-of the-solution from Example I (3-mmoles) was mixed.in a.... 33 tared Teflon cup with 1.26 grams of tetraethyl orthosilicate and then allowed -68- I to evaporate (in a hood) for several days as hydrolysis occurred. A second 2 reaction was set up the same way. After evaporation to the appearance of 3 dryness,. one reaction was given 0.20 gram of water and. mixed. The second 4 was given 0..60 gram of water and the same treatment ensued. 0.125 Gram of s about 50%,HF.was carefully added to each reaction mixture and.the. contents 6 were stirred with a plastic spatula and a thick gel formed. In the first case the 7 H20/SiO2 ratio was now roughly 3.5 and it was 7.0 in the second case. The 8 materials were heated to.150* C. and at 43 RPM in tumbled Parr. reactors 9 placed in a Blue M convection heating oven. The reactions were cooled and -10 opened in 6 day. periods with.a small amount examined by Scanning Electron ii Microscopy to determine if crystals had formed. After 22 days there was 12 crystalline material in both and the solids were collected (filtration) and 13 washed with copious amounts of water, air dried and then examined by X-ray 14 diffraction (XRD). The product in both cases was SSZ-74. 15 16 Example 3. 17 . Calcination of SSZ-74 19 The products from both reactions in Example 2 were calcined in stages 2q and in air'to 5950 C to remove the organic content..The materials were found 21 to be stable and the XRD patterns showed the relationship to'the-as-made 22 SSZ-74. 23 24 Example 4 25 Adsorption -of 2,2-DimethylbUtane 26 27 The calcined material of Example 3 was then tested for the uptake of 28 the hydrocarbon 2,2-dimethylbutane. This adsorbate does not enter small 29 pore zeolites (8-ring portals) and sometimes' is hindered in entering 3o intermediate pore zeolites like:ZSM-5..The SSZ-74 showed a profile more 31 characteristic of intermediate pore materials (as contrasted to Y zeolite, a 32 large pore:rriaterial), showing steady gradual uptake of-the adsorbate.

33 -69- I SSZ-74 was shown to adsorb about 0.08 cc/gram after 3 hours of 2 exposure to the 2,2 dirnethyl butane adsorbate using a pulsed mode. This 3 value compares with an analysis for ZSM-5 zeolite which gives a value closer 4 to 0.07cclgm at'the same point in time underthe same-experirenta 5 conditiorns. This would indicate that the pores of SSZ-;74 are at least 10-rings 6 7 .Example 5 8 Synthesis of Aluminosilicate SSZ-74 9 1o The synthesis parameters of Example 2 were repeated except for the iI following changes. (1) 0.04 gram of Y zeolite material LZ-210 was added as a 12 potential contributor of Al; (2) the initial H20/SiO2 ratio for the synthesis was 13 adjusted to 5; (3) seeds of a successful SSZ-74 product were added; and.(4) 14 the reaction Was run at-170* C. After 9 days there was crystalline material is which was SSZ-74 when worked up and analyzed by XRD. The solids were 16 calcined then as in Example 3. 17 18 Example 6 19 Constraint Index 21 '0.12 grams of the material from Example 5, in.a.20-40 pelleted and 22 meshed range, was loaded into a stainless steel reactor and run in a 23 Constraint Index test (50/50 n-hexane/3-riethylpentane). .The normal feed' 24 rate was used (8 pl/nin.) -and the test was run at 700'.F after the catalyst had 25 been dried in the reactor to near 1000" F. Helium flow was used: At -10 26 minutes dn-stream nearly 30% of the feed was being converted with about 27 equal amounts of each reactant.: The selectivity did not change as the catalyst 28 fouled to half the conversion at 100 minutes: The pores of the active-SSZ-74 29 were at least intermediate in size. 30 .- 70- 5l Example 7 Synthesis of Aluminosilicate SSZ-74 Three mMoles of SDA solution and 1.26 grams (6 mMoles) of tetraethylorthosilicate were combined in a Teflon cup for a Parr reactor. The contents were allowed to react and then most of the water 5 and then the ethanol by-product were allowed to evaporate in a hood over several days. Once the H20/SiO2 ratio was about 5, from the evaporation, 0.04 grams of LZ-210 zeolite were added (LZ 210 is a Y zeolite which has been treated with (NH 4

+)

2 SiF 6 to provide some de-alumination). A few mg of seeds of SSZ-74 were added in the as-made state. Lastly, 0.132 gram of 50% HF was added and the reactor was closed up and heated at 170 0 C, 43 RPM for six days. A sample of the cooled 0 reaction product showed nicely crystalline material in an electron microscope. The reaction contents were worked up and dried. Analysis by X-ray diffraction showed the product to be molecular sieve SSZ-74. The sample was calcined (in air to 595 0 C) and then pelleted and meshed (20-40) and run in a standard Constraint Index test. At 700*F the initial conversion was 28% with a Cl value of 1.1. With 5 time-on-stream the catalyst showed a steady deactivation while the Cl value did not change much. Reference to any prior art in the specification is not, and should not be taken as, an acknowledgment, or any form of suggestion, that this prior art forms part of the common general knowledge in Australia or any other jurisdiction or that this prior art could reasonably be expected to be ascertained, understood and regarded as relevant by a person skilled in the art. o As used herein, except where the context requires otherwise, the term "comprise" and variations of the term, such as "comprising", "comprises" and "comprised", are not intended to exclude other additives, components, integers or steps. -71-

Claims

1. A crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and 5 having, after calcination, the X-ray diffraction lines of Table 1l.

2. The molecular sieve of claim 1 wherein the molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron oxide, titanium oxide, indium oxide and mixtures thereof.

3. A crystalline molecular sieve having a composition comprising, as synthesized and in the 0 anhydrous state, in terms of mole ratios, the following: SiO 2 / XcOd greater than 100 M2 / Si0 2 0 - 0.03 Q / SiO 2 0.30 - 0.70 F / Si0 2 0.30 - 0.70 5 wherein X is aluminum, gallium, iron, boron, titanium, indium and mixtures thereof, c is 1 or 2; d is 2 when c is 1, or d is 3 or 5 when c is 2, M is an alkali metal cation, alkaline earth metal cation or mixtures thereof; n is the valence of M; Q is a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidiniurn) dication and F is fluoride.

4. A method of preparing a crystalline material, said method comprising contacting under /0 crystallization conditions (1) a source of silicon oxide, (2) a source of aluminum oxide, gallium oxide, iron oxide, boron oxide, titanium oxide, indium oxide and mixtures thereof, (3) fluoride ions and (4) a structure directing agent comprising a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication.

5. The method of claim 4 wherein the crystalline material is prepared from a reaction mixture 25 comprising silicon oxide and, in terms of mole ratios, the following: Si0 2 / XaOb 100 and greater OH- / SiO 2 0.20 - 0.80 Q / Si0 2 0.20 - 0.80 M2j / SiO 2 0-0.04 - 72 - H 2 0 / SiO 2 2-10 HF/SiO 2 0.20-0.80 wherein X is aluminum, gallium, iron, boron, titanium, indium and mixtures thereof, a is 1 or 2, b is 2 when a is 1 , b is 3 when a is 2, M is an alkali metal cation, alkaline earth metal cation or mixtures 5 thereof; n is the valence of M and Q is a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication.

6. A process for converting hydrocarbons comprising contacting a hydrocarbonaceous feed at hydrocarbon converting conditions with a catalyst comprising a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a 0 trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11.

7. The process of Claim 6 wherein the molecular sieve has a mole ratio greater than about 15 of (1) silicon oxide to (2) an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron 5 oxide, titanium oxide, indium oxide and mixtures thereof.

8. A catalyst composition for promoting polymerization of 1-olefins, said composition comprising (A) a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent 0 element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11; and (B) an organotitanium or organochromium compound.

9. A process for converting oxygenated hydrocarbons comprising contacting said oxygenated hydrocarbon under conditions to produce liquid products with a catalyst comprising a molecular 25 sieve having a mole ratio greater than about 15 of an oxide of a first tetravalent element to an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11.

10. A process for hydrotreating a hydrocarbon feedstock comprising contacting the feedstock 30 with a hydrotreating catalyst and hydrogen under hydrotreating conditions, wherein the catalyst - 73 - S comprises a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 1l. 5

11. A process for the reduction of oxides of nitrogen contained in a gas stream wherein said process comprises contacting the gas stream with a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of 0 Table 1l.

12. A process for oxidation of hydrocarbons comprising contacting said hydrocarbon with an oxidizing agent in the presence of a catalytically effective amount of a titanium-containing molecular sieve for a time and at a temperature effective to oxidize said hydrocarbon, wherein the titanium containing molecular sieve is a molecular sieve having a mole ratio greater than about 15 of (1) 5 silicon oxide to (2) titanium oxide and having, after calcination, the X-ray diffraction lines of Table II.

13. A process for epoxidation of an olefin comprising contacting said olefin with hydrogen peroxide in the presence of a catalytically effective amount of a titanium-containing molecular sieve for a time and at a temperature effective to epoxidize said olefin, wherein the titanium- containing molecular sieve is a molecular sieve having a mole ratio greater than about 15 of (1) silicon oxide to 0 (2) titanium oxide and having, after calcination, the X-ray diffraction lines of Table II.

14. A process for oxidizing cyclohexane comprising contacting said cyclohexane with hydrogen peroxide in the presence of a catalytically effective amount of a titanium-containing molecular sieve for a time and at a temperature effective to oxidize said cyclohexane, wherein the titanium containing molecular sieve is a molecular sieve having a mole ratio greater than about 15 of (1) 25 silicon oxide to (2) titanium oxide and having, after calcination, the X-ray diffraction lines of Table 11.

15. A catalytic oxidation process comprising contacting under oxidation conditions (1) a reactant which is catalytically oxidizable in the presence of hydrogen peroxide, (2) aqueous hydrogen peroxide and (3) a catalytically effective amount of an oxidation catalyst comprising a molecular sieve having a mole ratio greater than about 15 of (1) silicon oxide to (2) titanium oxide and having, 30 after calcination, the X-ray diffraction lines of Table 11. -74 - 5

16. A process for the epoxidation of an olefin comprising contacting said olefin with hydrogen peroxide in the presence of a catalytically effective amount of a catalyst comprising a molecular sieve having a mole ratio greater than about 15 of (1) silicon oxide to (2) titanium oxide and having, after calcination, the X-ray diffraction lines of Table 11. 5

17. A method for performing an acylation reaction on an aromatic substrate ArHn to form a product ArH,. 1 COR, the method comprising the steps of: providing the aromatic substrate, intimately mixing the substrate and an acylating agent, wherein the acylating agent is selected from the group consisting of a carboxylic acid derivative, a carboxylic acid, an acid anhydride, an ester, 0 and an acyl halide, and exposing an intimate mixture thus formed to a catalyst comprising a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray 5 diffraction lines of Table HI.

18. A process for the production of light olefins from a feedstock comprising an oxygenate or mixture of oxygenates, the process comprising reacting the feedstock at effective conditions over a catalyst comprising a is crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, 0 second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11.

19. A process for separating gasses comprising contacting a mixture of gasses with a membrane containing a molecular sieve wherein the molecular sieve comprises a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent 25 element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11.

20. A process for producing methylamine or dimethylamine comprising reacting methanol, dimethyl ether or a mixture thereof and ammonia in the gaseous phase in the presence of a 30 catalyst comprising a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an - 75 - oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11.

21. A process for treating a cold-start engine exhaust gas stream containing hydrocarbons and 5 other pollutants consisting of flowing said engine exhaust gas stream over a molecular sieve bed which preferentially adsorbs the hydrocarbons over water to provide a first exhaust stream, and flowing the first exhaust gas stream over a catalyst to convert any residual hydrocarbons and other pollutants contained in the first exhaust gas stream to innocuous products and provide a treated exhaust stream and discharging the treated exhaust stream into the atmosphere, the molecular 0 sieve bed comprising a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11.

22. A process for the preparation of amides from oximes via Beckmann rearrangement 5 comprising contacting the oxime in the vapor phase with a catalyst comprising a crystalline molecular sieve having a mole ratio greater than about 15 of (1) an oxide of a first tetravalent element to (2) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table 11. - 76-