EP1390329A2 - Paraffine microcristalline - Google Patents
Paraffine microcristallineInfo
- Publication number
- EP1390329A2 EP1390329A2 EP02732741A EP02732741A EP1390329A2 EP 1390329 A2 EP1390329 A2 EP 1390329A2 EP 02732741 A EP02732741 A EP 02732741A EP 02732741 A EP02732741 A EP 02732741A EP 1390329 A2 EP1390329 A2 EP 1390329A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- paraffin
- microcrystalline
- paraffins
- catalyst
- particular according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
- C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
- C10G45/64—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1022—Fischer-Tropsch products
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S208/00—Mineral oils: processes and products
- Y10S208/95—Processing of "fischer-tropsch" crude
Definitions
- the invention relates to a microcrystalline paraffin, its production and its use.
- Microwaxes known consists of a mixture of saturated hydrocarbons which are solid at room temperature and have a chain length distribution of C 25 to C 80 .
- microcrystalline paraffins contain many branched iso-alkanes and alkyl-substituted cycloalkanes (naphthenes) as well as - albeit generally small - fractions of aromatics.
- the content of iso-alkanes and naphthenes is between 40 and 70% determined according to the EWF standard
- the solidification range is between 50 and 100 ° C according to DIN ISO 2207.
- the needle penetration has values between 2 x 10 _1 and 160 x 10 _1 mm according to DIN 51579. The solidification point and the needle penetration are used to distinguish between plastic and hard paraffin among the microcrystalline paraffins.
- 35 stalline paraffins are easy to form and knead and have solidification points between 65 and 80 ° C and penetration values from 10 to 30 x 10 _1 mm.
- the oil content can be up to 5%.
- the hard microcrystalline paraffins are tough and weakly adhesive with solidification points of 80 to 95 ° C and penis
- Microcrystalline paraffins have a high molecular weight and thus high boiling points. So far, they have been obtained from the residues of vacuum distillation of petroleum, in particular in the production of lubricating oil (residue waxes), as well as from excretions of the petroleum during its production, transport and storage, in technologically very complex and cost-intensive processes with several Stages, for example deasphalting, solvent extraction, dewaxing, deoiling and refining.
- the de-oil for example deasphalting, solvent extraction, dewaxing, deoiling and refining.
- microcrystalline paraffins contain sulfur, nitrogen and oxygen compounds as impurities. As a result, they are not completely odorless and have a dark yellow to dark brown color.
- the necessary refining is carried out by bleaching (technical applications) or by hydrorefining (applications in the food and pharmaceutical industries).
- Microcrystalline paraffins are mainly used as a mixture component in Pa ⁇
- .0 raffin or wax mixtures used. However, they are mostly used in areas up to 5%. The main aim is to increase the hardness and melting point of these mixtures and to improve flexibility and oil retention. Typical applications are, for example, the production of waxes for impregnation, Be ⁇
- zeolites Omega zeolite, ZSN-5, X zeolite, Y zeolite and other zeolites.
- DE 695 15 959 T2 describes the hydroisomerization of wax-containing feedstocks to products which are suitable for the production of lubricating oils.
- a temperature of 270 ° to 360 ° C and a pressure of 500 to 1,500 psi or from 3.44 MPa to 10.36 MPa are used.
- the catalyst is based on a catalyzing metal component on a porous, heat-resistant metal oxide support (see page 2, paragraph 1), in particular on 0.1 to 5% by weight of platinum on aluminum oxide or zeolites, such as e.g. Offretit, Zeolite X, Zeolite Y, ZSM -5, ZSM-2 etc. (see page 3, middle).
- the feed material to be isomerized can be any wax or wax-containing material, in particular also a Fischer-Tropsch wax (see page 5, center).
- the hydrogen is fed to the reactor at a rate of 1,000 to 10,000 SCF / bbl and the wax with 0.1 to 10 LHSV (see page 6, center).
- the isomerization product is liquid (see page 7, line 7). It can be fractionated by distillation or by treatment with solvents, e.g. with a MEK / toluene mixture (see page 7, last paragraph).
- All of the liquid product from the isomerization plant is more advantageously treated in a second stage under mild conditions using the Group VIII noble metal isomerization catalyst and a refractory metal oxide to reduce PNA and other contaminants in the isomer and thus an oil with improved daylight resistance (see page 8, paragraph 2).
- Mild conditions are understood to mean: a temperature in the range of approximately 170 ° to 270 ° C, a pressure of about 300 to 1,500 psL, a hydrogen gas rate of about 500 to 1,000 SCF / bbl and a flow rate of about 0.25 to 10 vol./vol./h.
- DE 38 72851 T2 describes the production of a middle distillate fuel from a paraffin wax, in particular an FT wax (see claim 2), in which the wax under hydroisomerization conditions in the presence of a certain catalyst based on a metal of VIII. Group, in particular platinum (claim 12), and aluminum oxide as a carrier material is treated with hydrogen, so that a middle formate product and a bottom product with an initial boiling point above 371 ° C. are obtained (see claim 1), in particular one Lubricating oil fraction with a low pour point (see claim 5).
- the wax is fed to the reactor at a rate of 0.2 to 2 V / V.
- the hydrogen is fed to the reactor at a rate of about 0.089 to 2.67 m 3 H2 per 11 wax.
- the catalyst has a decisive influence on the conversion. If it is based on platinum and a ⁇ -zeolite with a pore diameter of about 0.7 nm, the desired conversion to a middle distillate product is not observed, especially when the temperature decreases to 293.9 ° C. (see example 3).
- the invention is concerned with the task of specifying a novel microcrystalline paraffin, a process for its production and the use of this microcrystalline paraffin.
- microcrystalline paraffin which can be produced by catalytic hydroisomerization at temperatures above 200 ° C., from paraffins (FT paraffins) containing Fischer-Tropsch synthesis with a C chain length distribution in the range from C 20 to C 105 . ben is. It has surprisingly been found that such a microcrystalline paraffin is free of naphthenes and aromatics. It is also surprising that crystallinity has been retained despite isomerization. Continuous production with defined properties is possible. A product to be called micro wax in the low and high freezing point range is provided.
- FT paraffins Fischer-Tropsch paraffins
- the FT paraffins are paraffins which, according to the Fischer-Tropsch process, are made in a known way from synthesis gas (CO and H2) in the presence of a catalyst were produced at an elevated temperature.
- Such FT paraffins with a high proportion of n-paraffins and a C chain length in the range from C 20 to C 105 become high-melting, microcrystalline paraffins with a high by the J E process described here
- microcrystalline paraffin is according to the process aspect of the invention.
- FT paraffin as starting material a) with a C chain length in the range from C 20 to C 105 , ,, b) preferably with a solidification point in the range from 70 to 105 ° C, in particular about 70, 80, 95 or 105 ° C according to DIN ISO 2207, c) penetration at 25 ° C from 1 to 15; d) a ratio of iso to n-alkanes of 1: 5 to 1:11
- a catalyst preferably in the form of extrudates, spheres, tablets, granules or powders, advantageously on the basis of a) 0.1 to 2.0, in particular 0.4 to 1.0,% by weight, based on the catalyst annealed at 800 ° C., on hydrogenating metal of the eighth subgroup, in particular platinum, and b) a support material made of a zeolite with a pore diameter in the range from 0.5 to 0.8 nm (5.0 to 8.0 ⁇ ) .
- the loading of the reactor with the FT paraffin is expediently in the range from 0.1 to 2.0, in particular from 0.2 to 0.8 v / v. h (volume of FT paraffin per volume of the reactor within one hour).
- the yield of hydroisomerizates is between 90 and 96% by mass, based on the FT paraffin used in each case.
- the catalyst used is preferably formed on the basis of a? Zeolite.
- the catalytic hydroisomerization of the FT paraffins is preferably carried out continuously in a flow reactor with a fixed catalyst, in particular in the form of extrudates, spheres or tablets, where
- the reactor if, as is preferred, oriented vertically, can be flowed through from top to bottom and from bottom to top.
- the process can also be carried out discontinuously in e.g. be carried out in a stirred autoclave in a batch process, the catalyst in a permeable
- microcrystalline paraffins obtained according to the invention have the following properties:
- n-alkanes Compared to the FT paraffins used, they have lower solidification points and, in addition to n-alkanes, contain a high, in particular higher proportion by weight of iso- than n-alkanes.
- the proportion of n- or iso-alkanes is determined by gas chromatography.
- the increased degree of isomerization achieved by the hydroisomerization is expressed in increased penetration values, a reduced degree of crystallization and a reduced one
- the degree of crystallization is determined by an X-ray diffraction analysis. It denotes the crystalline fraction in the product obtained in relation to that amorphous portion. The amorphous components lead to a different diffraction of the X-rays than the crystalline components.
- the needle penetration at 25 ° C. in the products according to the invention is in the range from 20 to 160, measured according to. DIN 51579. The products obtained are solid at 20 ° C in the sense that they do not run.
- the crystalline fraction is particularly reduced as follows: While a crystalline fraction occurs in a range of 60 to 75% in the feed, a 30 to 45% fraction is observed in the hydroisomerizate. Especially in the range of 35 to 40 (36, 37, 38, 39)%.
- the crystalline fractions and the amorphous fractions are each indicated in MA% by the X-ray diffraction analysis mentioned.
- microcrystalline paraffins produced according to the invention from FT paraffins have physical and material properties which are similar or comparable to those of petroleum-based microcrystalline paraffins (microwaxes).
- microcrystalline paraffins produced by catalytic hydroisomerization can also be deoiled with a solvent.
- this does not mean that the hydroisomerization products described have a content of conventional oil.
- very short-chain n- or iso-alkanes are removed.
- a deoiled microcrystalline paraffin is obtained in a yield of 80 to 90% by weight, based on the amount used Hydroisomerate obtained. It has the following properties It has the following properties:
- microcrystalline hydroisomerizate prepared in accordance with the invention and the corresponding deoiled microcrystalline hydroisomerizate can be used like a micro wax (see introduction).
- the hydroisomerate obtained can also be oxidized.
- oxidized products which differ according to melting range and degree of oxidation and are used primarily as corrosion protection agents and as cavity and underbody protection agents for motor vehicles. They are also used in emulsions as care and release agents and as an additive for printing and
- the acid and ester groups which are statistically distributed over hydrocarbon chains, can be converted with inorganic or organic bases to formulations which are dispersible in water (emulsifying waxes) and lead to products with very good metal adhesion.
- Heat seal and hot melt adhesives as a blend component in candles and other wax products in wax mixtures for crayons, floor and car care products as well as for dental technology and pyrochemicals. They are also part of light protection waxes for the tire industry, electrical insulation materials, scaffold and model waxes for the investment casting industry, and wax formulation for explosives, ammunition and propellant technology.
- Products of this type are also suitable as release agents in the pressing of wood, particle board and fiberboard in the production of ceramic parts and, because of their retention capacity, for the production of solvent-based care products, grinding and polishing pastes and as matting agents for paints.
- these products can be used for the formulation of adhesive waxes, cheese waxes, cosmetic preparations, chewing gum bases, cast and cable masses, sprayable pesticides, petroleum jelly, artificial chimney logs, lubricants and hot melt adhesives.
- a food safety test is carried out, for example, according to FDA, ⁇ 175. 250.
- the hydroisomerisate is white, odorless and slightly sticky and is therefore very different from the brittle, hard product.
- the iso-alkane content is increased about 6 times, which is due to the increased penetration value, the reducedn crystalline portion and the lowered enthalpy of fusion is documented.
- the synthetic, microcrystalline paraffin thus produced can be classified according to its characteristic values between a plastic and a hard, petroleum-based microwax. With the hydroisomer, a paraffin with a pronounced microcrystalline structure was obtained, the C chain length distribution of which, based on the carbon atoms, was 23 to 91 in roughly corresponds to that of the input product with 27 to 95, but just shifted towards smaller chain lengths. The chain length was determined by gas chromatography.
- An FT paraffin with a solidification point at 70 ° C. was catalytically isomerized with hydrogen at a pressure of 5 MPa (50 bar), a temperature of 250 ° C. and a v / vh ratio of 0.3.
- the structural change that occurred was documented by the key figures in the table.
- the hydroisomerisate is white and odorless as well as pasty and slightly sticky.
- the iso-alkane content is increased about 5 times.
- the high degree of isomerization is expressed in the significantly increased penetration value, the reduced crystalline fraction and the reduced melting enthalpy. The so obtained
- the synthetic microcrystalline paraffin produced in this way is, according to its characteristic values, a soft plastic microcrystalline paraffin obtained on the basis of petroleum
- Paraffins which mainly consist of n-alkanes and have a fine crystalline structure and a brittle-hard consistency, in non-flowing, pasty or solid paraffins were converted, which have lower melting temperatures than the feed products. These paraffins are characterized by a high content of branched alkanes and consequently have a microcrystalline structure with a significantly reduced degree of crystallization as well as a plastic to slightly sticky consistency.
- the branched alkanes are predominantly methyl alkanes, the methyl groups preferably occurring in the 2-, 3-, 4- or 5-position. Poly-branched alkanes were also formed to a small extent.
- a catalyst (cylindrical extrudate, diameter 1.5 mm, length approx. 5 mm) was used uncrushed. 92 ml of catalyst were poured undiluted into the reactor tube (total volume 172 ml, inner diameter 22 mm). The catalyst zone was also covered with the earth material. A thermocouple was positioned in the reactor so that the temperature was measured at a depth of 2 cm and 17 cm of the catalyst bed. The catalysts were dried and activated (water is expelled by high temperature and platinum is reduced).
- An FT paraffin C80 (solidification point 81 ° C., mass ratio n- / iso-paraffins: 93.9 / 6.1) was used as the paraffin feed product.
- the oil content of the starting product was 0.5%.
- the catalyst was a platinum catalyst on beta zeolite.
- ß -Zeolithen is referred to the reference "Atlas of Zeolithe Strucüire-type", Elsevier Fourth Revised Edition, 1996.
- the fully synthetic microcrystalline paraffins produced by the hydroisomerization according to the invention contain no highly branched iso-alkanes, no cyclic hydrocarbons (naphthenes) and in particular no aromatics and sulfur compounds. They meet the highest purity requirements for microcrystalline paraffins and are therefore ideally suited for use in the cosmetic and pharmaceutical industries as well as for packaging and preservation in the food industry.
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10126516A DE10126516A1 (de) | 2001-05-30 | 2001-05-30 | Verfahren zur Herstellung von mikrokristallinen Paraffinen |
DE10126516 | 2001-05-30 | ||
PCT/EP2002/005970 WO2002096842A2 (fr) | 2001-05-30 | 2002-05-31 | Paraffine microcristalline |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1390329A2 true EP1390329A2 (fr) | 2004-02-25 |
EP1390329B1 EP1390329B1 (fr) | 2013-04-10 |
Family
ID=7686764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02732741.0A Expired - Lifetime EP1390329B1 (fr) | 2001-05-30 | 2002-05-31 | Procédé pour la production de paraffine microcristalline |
Country Status (11)
Country | Link |
---|---|
US (1) | US7875166B2 (fr) |
EP (1) | EP1390329B1 (fr) |
JP (1) | JP2004529192A (fr) |
CN (2) | CN101892080B (fr) |
AU (1) | AU2002304654A1 (fr) |
DE (1) | DE10126516A1 (fr) |
ES (1) | ES2408810T3 (fr) |
PL (1) | PL203361B1 (fr) |
RU (1) | RU2276184C2 (fr) |
WO (1) | WO2002096842A2 (fr) |
ZA (1) | ZA200300781B (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7670996B2 (en) | 2001-02-13 | 2010-03-02 | Shell Oil Company | Lubricant composition having a base oil and one or more additives, wherein the base oil has been obtained from waxy paraffinic fischer-tropsch synthesized hydrocarbons |
AR032941A1 (es) | 2001-03-05 | 2003-12-03 | Shell Int Research | Un procedimiento para preparar un aceite base lubricante y aceite base obtenido, con sus diversas utilizaciones |
AR032930A1 (es) | 2001-03-05 | 2003-12-03 | Shell Int Research | Procedimiento para preparar un aceite de base lubricante y gas oil |
MY137259A (en) | 2001-03-05 | 2009-01-30 | Shell Int Research | Process to prepare a lubricating base oil and a gas oil. |
AU2002319235B2 (en) * | 2001-06-15 | 2007-04-26 | Shell Internationale Research Maatschappij B.V. | Process for preparing a microcrystalline wax |
EP1509583B1 (fr) * | 2002-05-31 | 2014-06-04 | Sasol Wax GmbH | Paraffines microcristallines, procede de fabrication |
DE10256431A1 (de) | 2002-05-31 | 2004-01-15 | SCHÜMANN SASOL GmbH | Mikrokristallines Paraffin, Verfahren zur Herstellung von mikrokristallinen Paraffine und Verwendung der mikrokristallinen Paraffine |
WO2004009739A2 (fr) | 2002-07-18 | 2004-01-29 | Shell Internationale Research Maatschappij B.V. | Procede de preparation d'une cire microcristalline et d'un combustible de distillat moyen |
US20090127162A1 (en) * | 2005-05-20 | 2009-05-21 | Volker Klaus Null | Use of a Fischer-Tropsch Derived White Oil in Food Contact Applications |
US7851663B2 (en) * | 2007-04-16 | 2010-12-14 | Syntroleum Corporation | Process for producing synthetic petroleum jelly |
EP2078743A1 (fr) * | 2008-01-10 | 2009-07-15 | Shell Internationale Researchmaatschappij B.V. | Composition de carburant |
US9415363B2 (en) * | 2009-02-20 | 2016-08-16 | Marine Power Products Corporation | Method and apparatus for efficient on-demand production of H2 and O2 from water using waste heat and environmentally safe metals |
US10145015B2 (en) | 2012-12-05 | 2018-12-04 | Marine Power Products Incorporated | Hydrogen generating system and method using geothermal energy |
US11214486B2 (en) | 2009-02-20 | 2022-01-04 | Marine Power Products Incorporated | Desalination methods and devices using geothermal energy |
US9206043B2 (en) | 2009-02-20 | 2015-12-08 | Marine Power Products Incorporated | Method of and device for optimizing a hydrogen generating system |
TWI553158B (zh) | 2011-02-09 | 2016-10-11 | 海運動力產品股份有限公司 | 氫氣發電系統穩定性控制及方法 |
AP2014007646A0 (en) * | 2011-11-29 | 2014-05-31 | Sasol Chemical Ind Ltd | Petrolatum composition |
US10370595B2 (en) | 2012-03-13 | 2019-08-06 | Marine Power Products Incorporated | System for and method of using on-site excess heat to convert CO2 emissions into hydrocarbons income at coal-fired power plants |
PL400139A1 (pl) | 2012-07-25 | 2014-02-03 | Terra Trade Spólka Z Ograniczona Odpowiedzialnoscia | Sposób otrzymywania wosków parafinowych oraz zastosowanie wosków parafinowych |
CN110511576A (zh) * | 2019-07-23 | 2019-11-29 | 肥东县云武研发有限公司 | 一种玻璃失蜡法浇铸用石蜡及其制备方法 |
US11891580B2 (en) | 2019-08-08 | 2024-02-06 | Shell Usa, Inc. | Microcrystalline wax |
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US4419220A (en) | 1982-05-18 | 1983-12-06 | Mobil Oil Corporation | Catalytic dewaxing process |
US4919786A (en) | 1987-12-18 | 1990-04-24 | Exxon Research And Engineering Company | Process for the hydroisomerization of was to produce middle distillate products (OP-3403) |
US4995962A (en) * | 1989-12-29 | 1991-02-26 | Mobil Oil Corporation | Wax hydroisomerization process |
CN1066870A (zh) * | 1992-06-17 | 1992-12-09 | 洛阳市石油化工研究所 | 非临氢异构化工艺 |
IT1265041B1 (it) * | 1993-07-23 | 1996-10-28 | Eniricerche Spa | Catalizzatore bifunzionale efficace nella idroisomerizzazione di cere e procedimento per la sua preparazione |
EP0668342B1 (fr) | 1994-02-08 | 1999-08-04 | Shell Internationale Researchmaatschappij B.V. | Procédé de préparation d'une huile lubrifiante de base |
MY115180A (en) | 1994-10-24 | 2003-04-30 | Shell Int Research | Synthetic wax for food applications |
US5565086A (en) | 1994-11-01 | 1996-10-15 | Exxon Research And Engineering Company | Catalyst combination for improved wax isomerization |
EP1365005B1 (fr) | 1995-11-28 | 2005-10-19 | Shell Internationale Researchmaatschappij B.V. | Procédé pour la production d'huiles lubrifiantes |
CN1064990C (zh) * | 1996-09-12 | 2001-04-25 | 中国石油化工集团公司抚顺石油化工研究院 | 一种石油蜡催化加氢精制的工艺方法 |
US6179994B1 (en) * | 1998-09-04 | 2001-01-30 | Exxon Research And Engineering Company | Isoparaffinic base stocks by dewaxing fischer-tropsch wax hydroisomerate over Pt/H-mordenite |
US6080301A (en) * | 1998-09-04 | 2000-06-27 | Exxonmobil Research And Engineering Company | Premium synthetic lubricant base stock having at least 95% non-cyclic isoparaffins |
US6475960B1 (en) * | 1998-09-04 | 2002-11-05 | Exxonmobil Research And Engineering Co. | Premium synthetic lubricants |
US6310265B1 (en) * | 1999-11-01 | 2001-10-30 | Exxonmobil Chemical Patents Inc. | Isomerization of paraffins |
US6776898B1 (en) * | 2000-04-04 | 2004-08-17 | Exxonmobil Research And Engineering Company | Process for softening fischer-tropsch wax with mild hydrotreating |
US6773578B1 (en) * | 2000-12-05 | 2004-08-10 | Chevron U.S.A. Inc. | Process for preparing lubes with high viscosity index values |
AU2002319235B2 (en) | 2001-06-15 | 2007-04-26 | Shell Internationale Research Maatschappij B.V. | Process for preparing a microcrystalline wax |
FR2834655B1 (fr) * | 2002-01-17 | 2004-12-03 | Sicat | COMPOSITES ZEOLITHE/SiC ET LEUR UTILISATION EN CATALYSE |
DE10256431A1 (de) | 2002-05-31 | 2004-01-15 | SCHÜMANN SASOL GmbH | Mikrokristallines Paraffin, Verfahren zur Herstellung von mikrokristallinen Paraffine und Verwendung der mikrokristallinen Paraffine |
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2001
- 2001-05-30 DE DE10126516A patent/DE10126516A1/de not_active Ceased
-
2002
- 2002-05-31 JP JP2003500022A patent/JP2004529192A/ja active Pending
- 2002-05-31 AU AU2002304654A patent/AU2002304654A1/en not_active Abandoned
- 2002-05-31 WO PCT/EP2002/005970 patent/WO2002096842A2/fr active Application Filing
- 2002-05-31 PL PL368411A patent/PL203361B1/pl unknown
- 2002-05-31 ES ES02732741T patent/ES2408810T3/es not_active Expired - Lifetime
- 2002-05-31 US US10/477,910 patent/US7875166B2/en not_active Expired - Fee Related
- 2002-05-31 CN CN2010101456371A patent/CN101892080B/zh not_active Expired - Fee Related
- 2002-05-31 RU RU2003137572/04A patent/RU2276184C2/ru active
- 2002-05-31 CN CN028019059A patent/CN1668722B/zh not_active Expired - Fee Related
- 2002-05-31 EP EP02732741.0A patent/EP1390329B1/fr not_active Expired - Lifetime
-
2003
- 2003-01-29 ZA ZA200300781A patent/ZA200300781B/xx unknown
Non-Patent Citations (1)
Title |
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See references of WO02096842A2 * |
Also Published As
Publication number | Publication date |
---|---|
AU2002304654A1 (en) | 2002-12-09 |
DE10126516A1 (de) | 2002-12-05 |
US20040192979A1 (en) | 2004-09-30 |
CN101892080B (zh) | 2012-12-19 |
RU2276184C2 (ru) | 2006-05-10 |
EP1390329B1 (fr) | 2013-04-10 |
WO2002096842A2 (fr) | 2002-12-05 |
CN1668722B (zh) | 2010-05-26 |
US7875166B2 (en) | 2011-01-25 |
CN1668722A (zh) | 2005-09-14 |
CN101892080A (zh) | 2010-11-24 |
ZA200300781B (en) | 2004-02-10 |
RU2003137572A (ru) | 2005-05-27 |
PL203361B1 (pl) | 2009-09-30 |
PL368411A1 (en) | 2005-03-21 |
JP2004529192A (ja) | 2004-09-24 |
WO2002096842A3 (fr) | 2003-11-13 |
ES2408810T3 (es) | 2013-06-21 |
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