| 氯化苄制备苯甲醛的研究 |
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| 引用本文： | 王毅,乔旭. 氯化苄制备苯甲醛的研究[J]. 精细化工中间体, 2005, 35(1): 44-46,49 |
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| 作者姓名： | 王毅 乔旭 |
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| 作者单位： | 南京水科院瑞迪高新技术公司,江苏,南京,210024;南京工业大学,化工学院,江苏,南京,210009 |
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| 摘 要： | 采用环流反应器,对氯化苄进行光氯化,制得苄叉二氯, 再采用相转移催化剂,分别以盐酸和水作为介质,水解后得到了高纯度的苯甲醛。考察了反应温度、通氯量对氯化反应苄叉二氯转化率的影响,并对进行水解工艺条件进行了研究,得出了优惠工艺条件:光氯化反应的优化温度为115 ℃,副产物含量低于 2%;水解反应的适宜条件是在温度 100 ℃,水与苄叉二氯比为2∶1(m/m),收率达到99%以上。
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| 关 键 词： | 苯甲醛 氯化苄 光氯化 苄叉二氯 环流反应器 水解 |
| 文章编号： | 1009-9212(2005)01-0044-03 |
Study on the Preparation of Benzaldehyde from the Benzyl Chloride |
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| WANG Yi,QIAO Xu. Study on the Preparation of Benzaldehyde from the Benzyl Chloride[J]. Fine Chemical Intermediates, 2005, 35(1): 44-46,49 |
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| Authors: | WANG Yi QIAO Xu |
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| Affiliation: | WANG Yi~1,QIAO Xu~2 |
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| Abstract: | Benzal chloride was prepared from benzyl chloride by a new laboratorial photo-chlorination loop reactor. The effects of temperature and chlorine flow on the chlorination of benzyl chloride were investigated . The hydrolysis of benzal chloride was carried out in the presence of different media and phase transfer catalyst, and high purity benzaldehyde was obtained. |
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| Keywords: | benzaldehyde benzyl chloride photo-chlorination benzal chloride loop-reaction |
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