硅胶负载硅钨酸催化合成丁酮乙二醇缩酮  

CATALYTIC SYNTHESIS OF BUTANONE GLYCOL KETAL WITH SILICOTUNGSTIC ACID/SILICA

作　　者：吕宝兰[1] 谢婷[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《井冈山大学学报（自然科学版）》2011年第1期38-41,共4页Journal of Jinggangshan University (Natural Science)

基　　金：湖北省自然科学基金项目(2005ABA053);湖北师范学院教研基金项目

摘　　要：以硅胶负载硅钨酸为催化剂,以丁酮和乙二醇为原料催化合成丁酮乙二醇缩酮。探讨了丁酮与乙二醇量比、催化剂用量、带水剂及反应时间对收率的影响。实验表明,在n(丁酮):n(乙二醇)=1:1.5,催化剂用量为反应物料总质量的0.6%,带水剂环己烷10mL,反应时间75min的优化条件下,丁酮乙二醇缩酮的收率可达72.0%。The synthesis of butanone glycol ketal with silicotungstic acid/silica as catalyst has been studied.Molar ratio of butanone to glycol,the dosage of catalyst,the volume of cyclohexane as the water-carrying agent and reaction time on the yield were discussed and the best conditions were found out.The optimum conditions are：molar ratio of butanone to glycol is 1：1.5,the dosage of catalyst is equal to 0.6% of feed stocks,the volume of cyclohexane as the water-carrying agent is 10 mL and the reaction time is 75 min.Silicotungstic acid/silica is an excellent catalyst for synthetizing butanone glycol ketal and its yield can reach over 72.0%.

关 键 词：丁酮乙二醇缩酮 硅胶负载硅钨酸 催化 缩酮反应 

分 类 号：TQ655[化学工程—精细化工]