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|1. (WO2017041373) METHOD FOR PREPARING ACETIC ACID BY CARBONYLATION OF METHANOL|
|Applicants:||DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
|Title:||METHOD FOR PREPARING ACETIC ACID BY CARBONYLATION OF METHANOL|
Provided is a method for preparing acetic acid by a carbonylation reaction of methanol, comprising passing the raw materials of methanol, carbon monoxide and water through a reaction zone loaded with acidic molecular sieve adsorbed by an organic amine as a catalyst and reacting same under certain conditions to prepare acetic acid. The method of the present invention has a high acetic acid selectivity and a good catalyst stability. The catalyst in the method of the present invention does not contain a rhodium or iridium noble metal, does not need an iodine-containing auxiliary, and does not produce a strong corrosive hydroiodic acid and the like.