| 助催化剂在醋酐催化法制备氯乙酸中的作用 |
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| 引用本文： | 张香娣,李福祥,吕志平,薛建伟.助催化剂在醋酐催化法制备氯乙酸中的作用[J].太原理工大学学报,2004,35(3):315-317,331. |
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| 作者姓名： | 张香娣 李福祥 吕志平 薛建伟 |
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| 作者单位： | 太原理工大学,精细化工研究所,山西,太原,030024 |
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| 摘 要： | 考察了几种助催化剂(SO4^2-／Fe2O3，活性炭负载SO4^2-／Fe2O3和活性炭＋发烟硫酸)对醋酐催化醋酸氯化反应的影响。研究发现，活性炭负载＋助催化剂对该反应的活性最高，在一定程度上既提高了反应速率和氯乙酸的产率，又较好地抑制了副产物二氯乙酸的生成。
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| 关 键 词： | 醋酸 氯乙酸 助催化剂 醋酐 固体超强酸 |
| 文章编号： | 1007-9432(2004)03-0315-03 |
| 修稿时间： | 2003年12月10 |
The Function of Catalyst Promoters for Acetic Anhydride Catalysis to Synthesize Monochloroacetic Acid |
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| Abstract: | The main purpose of this article is to study the function of catalyst promoters, such as SO_4~(2-)/Fe_2O_3, SO_4~(2-)/Fe_2O_3 supported by active carbon and active carbon plus fuming sulfuric acid, in the reaction between chlorine and acetic acid which used acetic anhydride as catalyst. We found that SO_4~(2-)/Fe_2O_3 supported by active carbon has the highest activity among these catalyst promoters in this reaction.To a certain extent, not only the production of MCA and reaction velocity can be raised, but also the production of DCA can be depressed. |
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| Keywords: | acetic acid monochloroacetic acid catalyst promoter acetic anhydride solid superacid |
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