Patent ID: 9024061
Filing Date: 2015-05-05
Classification: C07C

Abstract:
1. A continuous process for the production of acetic acid comprising: (a) reacting a compound, selected from the group consisting of methanol and reactive derivatives thereof, with carbon monoxide to produce acetic acid in an aqueous reaction mixture, the reaction being carried out while maintaining a concentration of water in the reaction mixture of from 0.1 wt % up to about 8 wt %, the reaction also being carried out in the presence of a homogeneous rhodium-based catalyst system comprising: (b) recovering acetic acid from the reaction mixture; wherein the process is controlled and the metallic co-catalyst composition is selected so that it is effective as a stabilizer and a rate promoter, and the reaction mixture contains substantially less than a theoretically equivalent inorganic iodide content corresponding to the presence of the metallic co-catalyst composition.