改性β沸石催化剂上己二酸与2-乙基己醇的酯化反应  

ESTERIFICATION REACTION OF HEXANE DIACID WITH 2 ETHYL HEXANOL OVER MODIFIED β ZEOLITE CATALYSTS

作　　者：张怀彬[1] 袁忠勇[1] 张悝[1] 

机构地区：[1]南开大学化学系

出　　处：《石油学报（石油加工）》1999年第1期57-60,共4页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金

摘　　要：用改性β沸石作催化剂，研究了己二酸与２－乙基己醇的酯化反应，讨论了阳离子交换度、焙烧温度及表面酸性对催化活性的影响。结果表明，己二酸二异辛酯的产率随离子交换度的增加而增加，Ｈβ沸石催化剂的焙烧温度为５００℃时，己二酸二异辛酯的产率有一极大值；在同样反应条件下。The esterification reaction of hexane diacid with 2 ethyl hexanol was studied by using modified β zeolite as catalysts.The effects of cation exchange degree,calcining temperature and the surface acidity on the catalytic activity were discussed.The results indicate that the yield of di isooctyl adipate increases with the cation exchange degree.When the calcining temperature of Hβ zeolite catalyst is 500℃,the yield of di isooctyl adipate has a maximum value.The Hβ zeolite catalysts treated by acid have obviously higher catalytic activity than that of original Hβ at the same reaction conditions because of the formation of superacid sites on the surface of the catalysts.

关 键 词：沸石 己二酸二异辛酯 催化剂 酯化 活性 增塑剂 

分 类 号：TQ414.4[化学工程] O643.32[理学—物理化学]