邻苯二甲酸二丁酯是使用较广、用量较大的塑料增塑剂之一。目前工业上主要采用硫酸作催化刘,通过苯酐和正丁醇的酯化反应制得。为克服硫酸作催化剂副反应多、对设备腐蚀及下水污染严重、酯化产物后处理工艺繁琐、产品耗损大等缺点,我们开展了用阳离子交换树脂作酯化反应催化剂的研究工作。 Dibutyl phthalate is one of the more widely used plastics plasticizers. At present, sulfuric acid is mainly used as a catalyst in industry, and is obtained through esterification of phthalic anhydride and n-butanol. In order to overcome the disadvantages of more side reaction of sulfuric acid as catalyst, serious corrosion of equipment, serious water pollution, complicated post-treatment of esterified products and large loss of products, we carried out the research on cation exchange resin for esterification reaction.