| 活性炭负载对甲苯磺酸催化合成三醋酸甘油酯工艺条件研究 |
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| 引用本文： | 刘红梅,卢义和,宫素芝.活性炭负载对甲苯磺酸催化合成三醋酸甘油酯工艺条件研究[J].河北工业科技,2007,24(1):21-23. |
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| 作者姓名： | 刘红梅 卢义和 宫素芝 |
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| 作者单位： | 河北科技大学化学与制药工程学院,河北石家庄,050018 |
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| 摘 要： | 以丙三醇、冰醋酸为原料,活性炭负载对甲苯磺酸为催化剂,催化合成三醋酸甘油酯。考察了催化剂中w(对甲苯磺酸)、催化剂用量、醇酸比、酯化时间等因素对反应的影响。发现上述因素均对三醋酸甘油酯的收率有显著影响,且都存在较优值。催化剂在该反应中有良好的催化活性。优选的反应条件是:催化剂中w(对甲苯磺酸)为36%,w(催化剂)为1.8%,n(丙三醇)∶n(冰醋酸)=1∶4,酯化时间为4 h。在此条件下,三醋酸甘油酯收率可达92%。
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| 关 键 词： | 三醋酸甘油酯 催化合成 活性炭 对甲苯磺酸 |
| 文章编号： | 1008-1534(2007)01-0021-03 |
| 修稿时间： | 2006年3月24日 |
Study on synthesis of glycerol triacetate using p-toluensulphonic acid supported by activated carbon as catalyst |
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| LIU Hong-mei,LU Yi-he,GONG Su-zhi.Study on synthesis of glycerol triacetate using p-toluensulphonic acid supported by activated carbon as catalyst[J].Hebei Journal of Industrial Science & Technology,2007,24(1):21-23. |
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| Authors: | LIU Hong-mei LU Yi-he GONG Su-zhi |
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| Abstract: | Using p-toluensulphonic acid supported by activated carbon as catalyst,glycerol triacetate was synthesized from glacial acetic acid and glycerin.The optimum conditions of the reaction were determined as following: molar ratio of glycerin to glacial acetic acid is 1∶4;the mass of catalyst to total is 1.8%;esterification time is 4 h;w(p-toluensulphonic acid)is 36%.The results show that the yield is over 92%. |
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| Keywords: | glycerol triacetate catalytic synthesis activated carbon p-toluensulphonic acid |
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