| 第 35 卷第 1 期 |  | Vol. 35 No. 1 | | 2005 年 2 月 | Feb 2005 |
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所屬欄目：其它
氯化芐制備苯甲醛的研究 |
| 王毅; 喬旭(南京水科院瑞迪高新技術(shù)公司; 南京工業(yè)大學(xué)化工學(xué)院; 江蘇南京) |
| 摘 要：采用環(huán)流反應器,對氯化芐進(jìn)行光氯化,制得芐叉二氯, 再采用相轉移催化劑,分別以鹽酸和水作為介質(zhì),水解后得到了高純度的苯甲醛�？疾炝朔磻獪囟�、通氯量對氯化反應芐叉二氯轉化率的影響,并對進(jìn)行水解工藝條件進(jìn)行了研究,得出了優(yōu)惠工藝條件:光氯化反應的優(yōu)化溫度為115 ℃,副產(chǎn)物含量低于 2%;水解反應的適宜條件是在溫度 100 ℃,水與芐叉二氯比為2∶1(m/m),收率達到99%以上。 |
| 關(guān)鍵詞：苯甲醛; 氯化芐; 光氯化; 芐叉二氯; 環(huán)流反應器; 水解 |
| 中圖分類(lèi)號：TQ244 文獻標識碼：A 文章編號：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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