Investigation of the advancements in iridium-based catalysts for the synthesis of acetic acid and examination of potential factors leading to catalyst poisoning
Investigation of the advancements in iridium-based catalysts for the synthesis of acetic acid and examination of potential factors leading to catalyst poisoning
The process of methanol carbonylation to produce acetic acid is a significant industrial chemical reaction.In contrast to rhodium-based catalysts,iridium-based catalysts offer benefits including in lower cost,reducing water content during production,and decreasing formation of by-product propionic acid.Nevertheless,challenges such as the catalyst's susceptibility to impurity ions and the high expense associated with catalyst separation remain prevalent.The reaction mechanism of traditional iridium-based catalysts in the methanol carbonylation process for the production of acetic acid were summarized.And it also was reviewed that the factors contributing to the deactivation of iridium-based catalysts and discusses the advancements in the design and synthesis of novel iridium-based catalysts.The objective is to offer valuable theoretical insights and practical recommendations for enhancing and refining the methanol carbonylation process for acetic acid production.
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