CATALYTIC PROCESS FOR THE PRODUCTION OF CARBOXYLIC ACID, BY CARBONYLATION OF AN OLEFIN IN THE PRESENCE OF WATER, AND LIQUID PHASE CARBONYLATION CATALYST

摘要

A carboxylic acid, such as propionic acid, is prepared by carbonylation of an olefin, such as ethylene in the presence of water by the use of a molybdenum-nickel or tungsten-nickel cocatalyst in the presence of a promoter comprising an organophosphorus compound or an organo-nitrogen compound wherein the phosphorus and nitrogen are trivalent and in the presence of a halide.