| 叔丁醇常压羰基化合成三甲基乙酸 |
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| 引用本文： | 刁开盛,尹显红,覃志刘,李雁.叔丁醇常压羰基化合成三甲基乙酸[J].应用化工,2005,34(9):552-554. |
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| 作者姓名： | 刁开盛 尹显红 覃志刘 李雁 |
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| 作者单位： | 广西民族学院,化学与生态工程学院,广西,南宁,530006 |
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| 摘 要： | 以甲酸为CO来源,常压下浓硫酸催化将叔丁醇羰基化得到三甲基乙酸。考察了醇酸配比、硫酸用量、反应温度、反应时间对三甲基乙酸收率的影响。结果表明,反应最优工艺条件为:n(叔丁醇)∶n(甲酸)∶n(浓硫酸)摩尔比=1∶1.5∶6.6,反应温度为30℃,反应时间为180 m in,三甲基乙酸的平均收率高达75.04%。
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| 关 键 词： | 三甲基乙酸 叔丁醇 甲酸 羰基化 |
| 文章编号： | 1671-3206(2005)09-0552-03 |
| 修稿时间： | 2005年7月6日 |
Non-pressure carbonylation synthesis of trimethylacetic acid from tert-butanol |
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| DIAO Kai-sheng,YIN Xian-hong,QIN Zhi-liu,LI Yan.Non-pressure carbonylation synthesis of trimethylacetic acid from tert-butanol[J].Applied chemical industry,2005,34(9):552-554. |
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| Authors: | DIAO Kai-sheng YIN Xian-hong QIN Zhi-liu LI Yan |
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| Abstract: | Using concentrated sulfuric acid as catalyst,trimethylacetic acid was prepared from non-pressure carbonylation of tert-butanol,in which CO came from formic acid.Effect of alcohol/acid mole ratio,dosage of sulfuric acid,reaction temperature,reaction time on the yield of trimethylacetic acid were investigated,the result showes that the optimum condition are as follows: n(tert-butanol) ∶n(formic acid) ∶n(sulfuric acid) = 1∶1.5∶6.6,reaction temperature is 30℃,and time is 180 min as well,the average yield of final product can be above 75.04%. |
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| Keywords: | trimethylacetic acid tert-butanol formic acid carbonylation |
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