| 第 35 卷第 1 期 |  | Vol. 35 No. 1 | | 2005 年 2 月 | Feb 2005 |
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所属栏目：其它
氯化苄制备苯甲醛的研究 |
| 王毅; 乔旭(南京水科院瑞迪高新技术公司; 南京工业大学化工学院; 江苏南京) |
| 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。 |
| 关键词：苯甲醛; 氯化苄; 光氯化; 苄叉二氯; 环流反应器; 水解 |
| 中图分类号：TQ244 文献标识码：A 文章编号：1009-9212(2005)01-0044-03 |
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| Study on the Preparation of Benzaldehyde from the Benzyl Chloride |
| WANG Yi~1; QIAO Xu~2 （1.Nanjing Ruidi Company; Nanjing Hydraulic Institute; Nanjing 210024; China; 2.Chemical College; Nanjing University of Technology; Nanjing 210009; China） |
| 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. |
| Key words：benzaldehyde; benzyl chloride; photo-chlorination; benzal chloride; loop-reaction |
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收稿日期：2004-08-10
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