| 活性炭负载磷钨酸催化合成乙酸叔丁酯 |
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| 引用本文： | 张英,马丽芳,窦宏宇,杨美玲,张春柳,范琳琳,安悦.活性炭负载磷钨酸催化合成乙酸叔丁酯[J].吉林化工学院学报,2011,28(1):16-18. |
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| 作者姓名： | 张英 马丽芳 窦宏宇 杨美玲 张春柳 范琳琳 安悦 |
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| 作者单位： | 辽宁师范大学,化学化工学院,辽宁,大连,116029 |
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| 摘 要： | 以活性炭为载体负载磷钨酸做催化剂,乙酸和叔丁醇为原料合成乙酸叔丁酯.采用正交实验设计,考察了催化剂用量、反应时间、醇酸比以及带水剂环己烷的用量对反应的影响.以10 mL叔丁醇为原料进行酯化反应,最佳反应条件为:反应时间2 h,醇酸比为1∶1.2,催化剂用量为1.3%(按反应体系总质量计算),带水剂用量为7 mL,在此条件下,乙酸叔丁酯的产率可达62.64%,纯度为95.985%.
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| 关 键 词： | 活性炭 负载杂多酸 乙酸叔丁酯 酯化反应 |
Synthesis of tert-butyl acetate by phosphotungstic acid as catalyst loading on activated carbon |
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| ZHANG Ying,MA Li-fang,DOU Hong-yu,YANG Mei-ling,ZHANG Chun-liu,FAN Lin-lin,AN Yue.Synthesis of tert-butyl acetate by phosphotungstic acid as catalyst loading on activated carbon[J].Journal of Jilin Institute of Chemical Technology,2011,28(1):16-18. |
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| Authors: | ZHANG Ying MA Li-fang DOU Hong-yu YANG Mei-ling ZHANG Chun-liu FAN Lin-lin AN Yue |
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| Affiliation: | ZHANG Ying,MA Li-fang,DOU Hong-yu,YANG Mei-ling,ZHANG Chun-liu,FAN Lin-lin,AN Yue(School of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian 116029,China) |
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| Abstract: | Tert-butyl acetate was synthesized by esterification of tert-butyl alcohol and acetic anhydride in the presence of phosphotungstic acid loading on activated carbon as the catalyst.The optimal reaction conditions of the synthesis of product were obtained by orthogonal experiments.When the esterification took 10mL tertiary butyl alcohols as raw material,the optimal reaction conditions showed：reaction time 2 hours,alkyd ratio 1∶1.2,catalyst amount of 1.3%（calculated according to the total mass of the reaction system）,with aqueous dosage 7mL,and the yield can be up to 62.64% with a purity of 95.985%. |
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| Keywords: | activated carbon supported phosphotungstic acid tert-butyl acetate esterification reaction |
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