process for the preparation of the acroleine and methprocede to prepare the acroleine and methacroleine acroeline

摘要

process for the preparation of acrolein and metacroleinei, which realizes the oxidation of propylene and izobutilenei, respectively.in phase gazaasa with molecular oxygen at high temperature in the presence of water vapour and other inert gases and in the presence of a catalyst oxidic comprising molybdenum, iron, cobalt, nickel, bismuth,potassium and phosphorus, characterized by that let it react a gaseous mixture containing 10% by volume propylene or 1 izobutilena, 5 18% by volume oxygen molecular, 10...60% by volume water vapor and 20...70% in volume of inert gas, at a temperature of 250 to 450 degree c.at a pressure from normal pressure to 10 at in the presence of a catalyst with the empirical formula: (see formula) which represents at least an element chosen from the group of elements comprising...