【摘要】 <正> 一、前言目前绝大多数工厂中,酯类的合成仍沿用硫酸作催化剂。硫酸严重地腐蚀设备,所得产品不易分离纯化,且需用碱水洗涤,后处理繁杂,产品质量受到一定影响,同时排放大量废水,污染环境。固体酸催化酯化反应,可克服硫酸作催化剂的一系列弊病。 Olah等人报道过用全氟乙烯磺酸盐树脂作固体酸催化剂,但因其成本高和耐热性差仅作为理论研究。也有人将分子筛类更多还原

【Abstract】 LD-42 solid acid catalyst is of strong acidity, good chemical and thermal stability, which can catalyze reaction instead of sulphuric acid. The esterification reaction with LD-412 catalyst has the characteristics of high yield, non-corrosion to the reactors, easy separation and purification of the products, simple production and reduction of waste water. The preparation of the LD-412 catalyst and its application in the esterification of acrylic acid are given.更多还原