Acetic acid synthesis method and product thereof

The invention relates to an acetic acid synthesis method and a product thereof, the acetic acid synthesis method comprises the following steps: in the presence of a catalyst, a cocatalyst, water and a solvent, methanol and/or a methanol derivative is contacted with carbon monoxide to obtain acetic acid, and the catalyst is carbonyl iridium iodide. The acetic acid prepared by the method provided by the invention not only has higher catalyst activity and selectivity, but also does not contain elements and groups except for an acetic acid synthesis system, so that the content of introduced impurities is lower in the process of continuous production and continuous addition of the catalyst, the generation of byproducts can be reduced, the productivity is favorably improved, and the production cost is reduced. The energy consumed by separating by-products is reduced, and the method has a wide application prospect. 本发明涉及一种醋酸合成方法及其产品，所述醋酸合成方法，包括在催化剂、助催化剂、水和溶剂的存在下，使甲醇和/或甲醇衍生物与一氧化碳接触以得到乙酸，其中，所述催化剂为碘化羰基铱。利用本发明的方法制备乙酸，不但