FIELD: chemistry.
SUBSTANCE: invention relates to a method for oxidative ammonolysis in the presence of mixed metal oxide catalysts. The method for oxidative ammonolysis to obtain an unsaturated nitrile involves bringing saturated or unsaturated hydrocarbon or a mixture of saturated or unsaturated hydrocarbon with ammonia and an oxygen-containing gas in the presence of a catalyst composition containing molybdenum, vanadium, antimony, niobium, tellurium, at least one element selected from a group consisting of titanium, tin, germanium, zirconium, hafnium and mixtures thereof, at least one lanthanide selected from a group consisting of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium and mixtures thereof. Disclosed is a version of the method for oxidative ammonolysis, where the catalyst contains, in addition to the listed elements, lithium and an element selected from sodium, caesium, rubidium and mixture thereof.
EFFECT: catalysts are characterised by very low content of tellurium in the composition, catalyst compositions are effective in gas-phase conversion of propane to acrylonitrile and isobutane to methacrylonitrile.
25 cl, 2 tbl, 15 ex
Authors
Dates
2012-05-27—Published
2008-02-12—Filed