摘要
以活性炭为原料,采用磺化法制备了磺化炭固体酸催化剂,用于环己酮与乙二醇的缩合反应。系统研究了反应时间、酮醇量比、催化剂用量及带水剂用量等因素对环己酮乙二醇缩酮产率的影响。得出了最佳反应条件:n(酮)︰n(醇)=1︰1.4,催化剂用量为环己酮质量的4%,带水剂环己烷用量15.0m L,反应时间90min,缩酮产率可达99.8%。实验证明,磺化炭是合成缩酮类化合物的优良催化剂,绿色环保,可重复使用8次以上。
Cyclohexanone glycol ketal was synthezed from cyclohexanone and ethylene glycol using sulfonated activated carbon as solid acid catalyst. Various reaction parameters such as the molar ratio of cyclohexanone to ethylene glycol, amount of catalyst, reaction time, water-carrying reagent amount and other factors influenced the synthesis were discussed and the best conditions were： molar ratio of cyclohexanone to ethylene glycol was 1 1.4, the amount of catalyst was equal to 4% cyclohexanone, amount of cyclohexane was 15 mL, the reaction time 90 min. the yield of cyclohexanone ethylene ketal reached to 99.8% under the optimum conditions. It was proved that the catalyst had a higher activity to condensation reaction and could be used repeated.
出处
《化工技术与开发》
CAS
2015年第7期1-3,共3页
Technology & Development of Chemical Industry
基金
广东省自然科学基金项目(项目编号S2013010015690)
关键词
活性炭
磺化
固体酸
环己酮乙二醇缩酮
activated carbon
sulfonated
solid acid
cyclohexanone glycol ketal
