In the production of carboxylic acid or carboxylic acid ester, a reaction product containing the carboxylic acid or carboxylic acid ester which has been produced by the reaction of an olefin, carbon monoxide, and water or an alcohol in the presence of HF is heat-treated in the presence of an acid catalyst and an acid adsorbent. By the heat treatment, the contamination of the carboxylic acid or carboxylic acid ester with HF and/or fluorine compounds such as acyl fluorides can be prevented, to enable the stable production of a high quality and high purity carboxylic acid or carboxylic acid ester without causing troubles such as corrosion of apparatus.
在制备
羧酸或
羧酸酯时,将烯烃、
一氧化碳和
水或醇在HF存在下反应产生的含有
羧酸或
羧酸酯的反应产物,在存在酸催化剂和酸吸附剂的情况下进行热处理。通过热处理,可以防止
羧酸或
羧酸酯受到HF和/或酰基
氟化物等
氟化合物的污染,从而实现稳定生产高质量、高纯度的
羧酸或
羧酸酯,同时避免设备腐蚀等问题的发生。