摘要
以十聚钨酸季铵盐([Bun Py]4W10O32)为催化剂、质量分数30%的H2O2为氧化剂,研究了环己醇催化氧化生成环己酮的反应,考察了反应时间、反应温度、H2O2和催化剂的物质的量等因素对此反应的影响。得出了此反应的最佳条件:反应温度为80℃,催化剂物质的量为0.06mmol,H2O2物质的量为125mmol,环己醇物质的量为50mmol,回流反应8h。在最佳反应条件下,环己醇的转化率为86.5%,环己酮的选择性可达到98.3%。反应后催化剂不溶于反应体系,简单过滤即可回收,重复使用3次后其活性基本不变。
Catalytic oxidation of cyclohexanol to cyclohexanone catalyzed by quaternary ammonium decatungstate,with 30%H2O2 as the oxidant,had been investigated.The effect of reaction time,reaction temperature,the oxidant amount and catalyst amount on catalytic performance were studied.The results show that the optimum reaction conditions are as follows： 50 mmol cyclohexanol,0.06 mmol catalyst,125 mmol H2O2,80 ℃ reacting for 8 h;At the optimum reaction conditions,the conversion of cyclohexanol is 86.5% and the selectivity of cyclohexanone could reach 98.3%.After reaction,the catalyst is immiscible in the reaction system and could be recycled after simple filtering,and no obvious changes on the catalytic activity could be found after recycling three times.
出处
《石油化工高等学校学报》
CAS
2011年第1期34-36,40,共4页
Journal of Petrochemical Universities
基金
国家自然科学基金项目(20706027)
教育部重点项目(209031)
辽宁省教育厅优秀人才计划(LR201024)
辽宁省自然科学基金(20102131)
关键词
十聚钨酸季铵盐
催化氧化
环己醇
环己酮
Quaternary ammonium decatungstate
Catalytic oxidation
Cyclohexanol
Cyclohexanone
作者简介
高玉环（1983-）．女．山东菏泽市．在读硕士，
通讯联系人。
