FIELD: chemical or physical processes.
SUBSTANCE: invention relates to a method of producing an ammoxidation catalyst, wherein the ammoxidation catalyst has a composition represented by following formula (1): Mo12BiaFebXcYdZeOf (1), where X is at least one element selected from the group consisting of nickel, cobalt, magnesium, calcium, zinc, strontium and barium; Y is at least one element selected from a group, consisting of cerium, chromium, lanthanum, neodymium, yttrium, praseodymium, samarium, aluminum, gallium and indium; Z is at least one element selected from a group consisting of potassium, rubidium and cesium; provided that in element X cobalt content is 20 atomic % or more and/or fraction of magnesium is 20 atomic % or less; a, b, c, d and e satisfy conditions 0.1≤a≤2.0; 0.1≤b≤3.0; 0.1≤c≤10.0; 0.1≤d≤3.0 and 0.01≤e≤2.0; respectively; and f is the number of oxygen atoms required to satisfy atomic valence requirements of other elements present in the formula, where said method comprises: step (i) for preparing a suspension of starting material containing molybdenum, bismuth, iron and a carboxylic acid compound; stage (ii) of mixing initial material suspension at temperature in range from 30 to 45 °C for 20 minutes to 8 hours, thereby obtaining a precursor suspension; spray drying the precursor suspension to obtain dry particles; and the dried particles burning stage, wherein the precursor suspension has viscosity of 1 to 100 cP. Invention also relates to methods of producing acrylonitrile and an ammoxidation catalyst for producing acrylonitrile.
EFFECT: technical result consists in obtaining an ammoxidation catalyst, which enables to obtain high yield of acrylonitrile and has resistance to abrasion.
7 cl, 2 tbl, 49 ex
