| 简介 |
FIELD : chemistry.
SUBSTANCE : method includes bringing propylene, ammonia and oxygen in contact in a steam phase under higher temperature in the presence of a catalyst. The said catalyst represents a complex of metal oxides, in which the ratio of elements is expressed by formula Mo12BiaFebAcDdEeFfGgCehOx. In the formula A stands for the element, selected from the group, consisting of sodium, potassium, rubidium and caesium; D stands for the element, selected from the group, consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium, E stands for the element, selected from the group, consisting of chromium, tungsten, boron, aluminium, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium; F stands for the element, selected from the group, consisting of a rare earth element, titanium, zirconium, hafnium, niobium, tantalum, aluminium, gallium, indium, thallium, silicon, germanium and lead; G stands for the element, selected from the group, consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; a has a value from 0.05 to 7, b - from 0.1 to 7, c - from 0.01 to 5, d - from 0.1 to 12, e - from 0 to 5, f - from 0 to 5, g - from 0 to 0.2, h - from 0.01 to 5 and x stands for the number of oxygen atoms, required to saturate the valence of other present elements. 0.15≤(a+h)/d≤1 and 0.8≤h/b≤5, and the relative outputs of alkylonitrile, acetonitrile and hydrogen cyanide, obtained by the claimed method, are determined by the equation α=[(%AN+(3×%HCN)+(1.5×%ACN))÷%PC]×100, where %AN stands for acrylonitrile output and %AN≥82, %HCN stands for hydrogen cyanide output, %ACN stands for acetonitrile output, %PC stands for propylene conversion and where α is larger than 100. The invention also relates to a catalytic composition for obtaining acrylonitrile, acetonitrile and hydrogen cyanide.
EFFECT : method makes it possible to increase acrylonitrile, acetonitrile and hydrogen cyanide output.
18 cl, 3 dwg, 5 tbl, 11 ex |
客服热线：
手机版
二维码
