KR940000424A - Method for ammoxidizing propylene with acrylonitrile and catalyst thereof - Google Patents

Abstract

For example, olefins such as propylene and isobutylene are molybdenum, bismuth, iron, cobalt, nickel and chromium, and phosphorus, antimony or mixtures thereof, alkali metals or mixtures thereof, and optionally alkaline earth metals, rare earth metals, Olefin in the presence of a catalyst containing any element or mixture of these elements in a crowd consisting of niobium, thallium, arsenic, magnesium, zinc, cadmium, vanadium, boron, calcium, tin, germanium, manganese, tungsten, and turulium By reacting a mixture of, ammonia, and molecular oxygen-containing gas, the corresponding unsaturated nits can be converted to acrylonitrile and methacrylonitrile, respectively.

Description

Method for ammoxidizing propylene with acrylonitrile and catalyst thereof

Since this is an open matter, no full text was included.

Claims (10)

Olefins selected from the group consisting of propylene, isobutylene and mixtures thereof are reacted at elevated pressures in the vapor phase at temperatures of about 300 ° C. to 600 ° C., so that the olefins are reacted with a molecular oxygen-containing gas and ammonia in the presence of an oxide catalyst. In the method of reacting and converting into acrylonitrile, methacrylonitrile, and these mixtures, respectively. Reaction proceeds in the presence of a catalyst represented by the following empirical formula. M0 _a Bi _b Fe _C Co _d Ni _e Cr _f X _g Y _i Z _j O _k Wherein X is P, Sb or a mixture thereof: Y is an alkali metal or mixture thereof: Z is an alkaline earth metal, a rare earth metal, Nb, Tl, As, Mg, Zn, Cd, V, B, Ca, Sn, Mn, W, Te or mixtures thereof: wherein a is a number from 12 to 14 and b is a number from 1 to 5; c is a number from 0.5 to 5: f and e are numbers from 0.1 to 6; b is a number from 0.1 to 4: g is a number from 0.1 to 4; i is a number from 0.1 to 2: j is a number from 0 to 3: k is a number determined by the equilibrium needs of other elements present. The method of claim 1 wherein the temperature is about 400 ° C. to about 480 ° C. 6. The method of claim 1 wherein g is a number from 0.75 to 3. 3. The catalyst auxiliary material of claim 1, wherein the catalyst is selected from the group consisting of silica, alumina, zirconia, titania, alanderm, silicon carbide, alumina silica, inorganic phosphate, pumice, montmorillonite, or mixtures thereof. Receiving assistance. 5. The method of claim 4 wherein said auxiliary material is silica. 5. The method of claim 4, wherein the auxiliary material is 10 to 70 wt% with respect to the catalyst. 5. A process as claimed in claim 4 wherein said auxiliary material is 40 to 60 weight percent of said catalyst. Any one or more of molybdenum, bismuth, iron, cobalt, nickel, chromium, phosphorus and antimony, any one or more of the group consisting of alkali metals, and optionally alkaline earth metals, rare earth guam, niobium, thallium, arsenic, magnesium, zinc, Cadmium, vanadium. The catalyst composition of the following formula which consists of a complex of any 1 or more types of catalyst oxides from the group which consists of boron, calcium, tin, germanium, manganese, tungsten, and / or tellurium. Mo _a Bi _b Fe _c Co _d Ni _e Cr _f X _g Y _i Z _j O _k Wherein X is P, Sb or a mixture thereof: Y is an alkali metal or a mixture thereof: Z is an alkaline earth metal, a rare earth metal, Nb, Tl, As, Mg, Zn, Cd, V, B, Ca, Sn, Ge, Mn, W, Te or a mixture thereof: wherein a is a number from 12 to 14; b is a number from 1 to 5; c is a number from 0.5 to 5; d and e are numbers from 0.1 to 6: f is a number from 0.1 to 4; g is a number from 0.1 to 4: i is a number from 0.1 to 2: j is a number from 0 to 3: k is a number determined by the equilibrium requirements of the other elements present. 9. The composition of claim 8, wherein the catalyst is assisted by a catalyst aid selected from the group consisting of silica, alumina or mixtures thereof. Olefins selected from the group consisting of propylene, isobutylene and their mixtures are reacted in the vapor phase at temperatures of about 200 ° C. to 600 ° C. at elevated pressures with the molecular oxygen-containing gas in the presence of an oxide catalyst. A method of reacting and converting into acrolein, metaacrolein, and a mixture thereof, respectively, wherein the reaction proceeds in the presence of a catalyst represented by the following empirical formula. MO _a Bi _b Fe _c Co _d Ni _e Cr _f X _g Y _i Z _j O _k Wherein X is P, Sb or a mixture thereof: Y is an alkali metal or a mixture thereof: Z is an alkaline earth metal, a rare earth metal, Nb, Tl, As, Mg, Zn, Cd, V, B, Ca , Sn, Ge, Mn, W, Te or a mixture thereof: wherein a is a number from 12 to 14, b is a number from 1 to 5: c is a number from 0.5 to 5: d and e are 0-1 is a number: a is a number from 0.1 to 4: g is a number from 0.1 to 4: i is a number from 0.1 to 2: j is a number from 0 to 3 ; k is a number determined by the equilibrium requirement of other elements present. ※ Note: The disclosure is based on the initial application.