一、前言用非汞催化剂从乙炔合成乙醛的液相水化法可以分为两大类:一类是以氯化亚銅为催化剂的主要成分,另一种是以鋅、鎘等盐类为主要成分。以氯化亚铜为主要成分的方法是从乙炔聚合反应的研究以及工业生产过程中发展起来的。克列班斯基等提到用氯化亚銅催化剂合成乙烯基乙炔时,如催化液中含过量的盐酸,則生成乙 I. Introduction Liquid phase hydration process for the synthesis of acetaldehyde from acetylene with non-mercury catalyst can be divided into two categories: one is the main component with cuprous chloride as catalyst and the other is with zinc, cadmium and other salts As the main ingredient. The method of taking cuprous chloride as the main component is developed from the research of acetylene polymerization reaction and the industrial production process. Kleinbosch et al. Mentioned the use of cuprous chloride catalyst for the synthesis of vinyl acetylene, such as the catalytic solution containing excess hydrochloric acid, the formation of B