Method for preparing iridium-based catalyst and application of iridium-based catalyst to catalysis of methanol carbonylation

The invention discloses a method for preparing an iridium-based catalyst and application of the iridium-based catalyst to catalysis of methanol carbonylation. The catalyst is simple in preparation process, bis (trifluoromethanesulfonyl) imide silver salt and iridium chloride are stirred in a pure water solution at normal temperature in a dark place for 24 hours, after AgCl precipitates are filtered out, a bis (trifluoromethanesulfonyl) imide iridium water solution is obtained, and the structural formula of the bis (trifluoromethanesulfonyl) imide iridium is shown in the specification. A new method for the synthesis of acetic acid and methyl acetate by the direct reaction of carbon monoxide and methanol with the catalyst and cocatalyst methyl iodide is provided. Compared with the prior art, the method has the advantages that the methanol carbonylation reaction is realized under mild conditions, and an economical and environment-friendly novel methanol carbonylation method is provided. 本发明公开了一种制备铱基催化剂的方法及其在催化甲醇