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Rhodium / inorganic iodide catalyst system for methanol carbonylation process with improved purity characteristics
Rhodium / inorganic iodide catalyst system for methanol carbonylation process with improved purity characteristics
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机译:铑/无机碘化物催化剂体系,用于甲醇羰基化工艺,具有改善的纯度
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摘要
The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities.The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, and 2-ethyl crotonaldehyde, in methanol carbonylation reactions has been found to decrease by maintaining less than about 4.5 wt % methyl iodide in the reaction medium during the course of the reaction.
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