磷钨钼杂多酸催化合成乳酸正丁酯  

Synthesis of Butyl Lactate by Tungstomolybdophosphoric Acid as Catalytst

作　　者：于海云[1] 王虎[1] 刘宗瑞[1] 

机构地区：[1]内蒙古民族大学化学与化工学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2012年第1期15-17,共3页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：内蒙古自然科学基金(2011BS0203);内蒙古人才基金资助项目

摘　　要：以乳酸和正丁醇为原料,选用磷钨钼杂多酸为催化剂,催化合成乳酸正丁酯,反应的最佳条件为催化剂用量为反应物总质量的0.6%,酸醇摩尔比为1:3,反应温度110～125℃,反应时间2h,酯化率达到97.69%.Butyl lactate was tungstomolybdophosphoric acid synthesized from lactic acid and n-butyl alcohol in the presence of （H3PW6MorO40）. The catalytic activity of tungstomolybdophosphoric acid （H3PWrMo6040） was discussed by the orthogonal experiment. The result shows that tungstomolybdophosphoric acid（H3PWrMor040） is an excellent catalyst for synthesizing butyl lactate. Factors influencing the synthesis were discussed and the optimum reaction conditions were found as follows： the mole ratio of lactic acid to n-butyl alcohol is 1：3, the quantity of catalyst is 0.6% of the feed stock, the time of reaction is 2h, and the temperature of the reaction is 110-125℃,the esterification yield can reach 97.69% ,

关 键 词：磷钨钼杂多酸 乳酸丁酯 催化剂 

分 类 号：O643.36[理学—物理化学]