ACRYLONITRILE PRODUCTION CATALYST Russian patent published in 2009 - IPC B01J37/00 B01J23/00 B01J23/887 C07C253/26 C07C255/08 

FIELD: chemistry.

SUBSTANCE: present invention pertains to versions of catalyst compositions for ammonolysis of an unsaturated hydrocarbon into an unsaturated nitrile and to the method of converting olefin using such a catalyst. In the first version, the catalyst composition is a complex of catalytically active oxides, comprising oxides of potassium, caesium, cerium, chrome, cobalt, nickel, iron, bismuth and molybdenum, in which the ratio of elements is presented in the following general formula: A_aK_bCs_cCe_dCr_eCO_fNi_gFe_iBi_jMo₁₂O_x. In this formula, A is Rb, Li or their mixture, a assumes values from 0 to 1, b assumes values from 0.01 to 1, c assumes values from 0.01 to 1, d assumes values from 0.01 to 3, e assumes values from 0.01 to 2, f assumes values from 0.01 to 10, g assumes values from 0.1 to 10, i assumes values from 0.1 to 4, j assumes values from 0.05 to 4, x is a number, defined by the valency of other elements present. In the second version, the catalyst composition is a complex of catalytically active oxides, comprising oxides of potassium, caesium, cerium, chrome, cobalt, nickel, iron, bismuth and molybdenum, in which the ratio of elements is presented in the following general formula: A_aLi_a'K_bCs_cCe_dCr_eCo_fNi_gFe_iBi_jMo₁₂O_x. A is Rb, a assumes values from 0 to 1, a' assumes values from 0.01 to 1, b assumes values from 0.01 to 1, c assumes values from 0.01 to 1, d assumes values from 0.01 to 3, e assumes values from 0.01 to 2, f assumes values from 0.01 to 10, g assumes values from 0.1 to 10, i assumes values from 0.1 to 4, j assumes values from 0.05 to 4, x is a number, defined by the valency of other elements present. In these given versions, the catalyst does not contain manganese and zinc and is put onto a carrier, selected from a group containing silica gel, aluminium oxide, zirconium oxide, titanium oxide or their mixture. The method of converting olefin into acrylonitrile, methacrylonitrile and their mixture involves reacting olefin with a gas, containing molecular oxygen or ammonia in vapour phase, in the presence of the above mentioned catalyst. The olefin used is propylene, isobutylene or their mixture.

EFFECT: invention allows for obtaining a catalyst with high activity and increases output of nitriles.

14 cl, 1 tbl, 3 ex