La_2(SO_4)_3/SiO_2催化合成增塑剂  

Catalytic Synthesis of Plasticizer by La_2(SO_4)_3/SiO_2

作　　者：张福捐[1] 盛淑玲[1] 

机构地区：[1]许昌学院化学系,河南许昌461000

出　　处：《稀土》2007年第5期109-111,共3页Chinese Rare Earths

基　　金：河南省科技厅自然科学基金资助(0511020500);河南省教育厅自然科学基金项目资助(200510480008)

摘　　要：以La2(SO4)3/SiO2为催化剂,顺丁烯二酸酐和丁醇为原料,合成内增塑剂顺丁烯二酸二丁酯,探讨了催化剂用量,酐醇物质的量比以及反应时间等对收率的影响。结果表明,La2(SO4)3/SiO2对顺丁烯二酸二丁酯的合成具有良好的催化活性,在适宜的条件下其收率可达99%。当把此催化剂用于合成柠檬酸三丁酯、邻苯二甲酸二辛酯、丁二酸二丁酯时,同样具有良好的催化活性。Dibutyl maleate was synthesized from maleic anhydride and n--butanol using La2（SO4）3/SiO2 as cat-alyst. The influence factors such as amount of catalyst,molar ratio of maleic anhydride to n--butanol,and reaction time on the yield of dibutyl maleate were discussed . The resules showed that La2（SO4）3/SiO2 was a good catalyst for synthesizing dibutyl maleate and its yield can reach over 99.0%. Applying this catalyst to synthesis dinoctyl phthalate,dibutyl succinate and trinbutyl citrate ,the activate of catalyst is fine.

关 键 词：顺丁烯二酸二丁酯 La2(SO4)3/SiO2 催化合成 增塑剂 

分 类 号：O643.3[理学—物理化学] O614.33[理学—化学]