Patent ID: 8916727
Filing Date: 2014-12-23
Classification: C07C,Y02P

Abstract:
1. A process for producing acetic acid, the process comprising the steps of: reacting carbon monoxide in the liquid phase with at least one reactant selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof in a reactor containing a reaction medium to produce a liquid reaction product comprising acetic acid, wherein the reaction medium comprises a finite amount of water, a homogeneous catalyst, an alkyl halide promoter, and a catalyst stabilizer comprising a dissymmetric phosphonium cation [PR maintaining the reaction medium at a total iodide ion concentration of from 2 to 35 wt. % and an alkyl halide promoter concentration of greater than 1 wt. %, based on the total weight of the reaction medium.