| 2-氯-5-氯甲基吡啶在气升环流反应器中的合成研究 |
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| 引用本文： | 闻建平,王长林,乔萍. 2-氯-5-氯甲基吡啶在气升环流反应器中的合成研究[J]. 中国化学工程学报, 2003, 11(5): 608-610 |
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| 作者姓名： | 闻建平 王长林 乔萍 |
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| 作者单位： | SchoolofChemicalEngineeringandTechnology,TianjinUniversity,Tianjin300072,China |
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| 基金项目： | Natural Science Foundation of Tianjin(No.013605711)，National Natural Science Foundation of China(No.20176040) |
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| 摘 要： | A new process for the direct chlorination of 2-chloro-5-methylpyridine to yield 2-chloro-5-chloro-methylpyridine in an airlift loop reactor (ALR) has been studied.Five main reaction conditions including TR,na/ns,cp,Qg and dD/dR were optimized.The average molar yield and purity of 2-chloro-5-chloromethylpyridine obtained were 79% and 98.5% respectively under the optimum operating conditions.Finally,the efficiency for the preparation of 2-chloro-50chloromethylpyridine with ALR and stirred tank reactor(STR) respectively was compared.
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| 关 键 词： | 2-氯-5-氯甲基吡啶 气升环流反应器 合成 工艺条件 杀虫剂 氯化 |
| 修稿时间： | |
The Preparation of 2-Chloro-5-chloromethylpyridine in an Airlift Loop Reactor |
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| WEN Jianping,Wang Changlin,QIAO Ping. The Preparation of 2-Chloro-5-chloromethylpyridine in an Airlift Loop Reactor[J]. Chinese Journal of Chemical Engineering, 2003, 11(5): 608-610 |
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| Authors: | WEN Jianping Wang Changlin QIAO Ping |
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| Affiliation: | School of Chemical Engineering and Technology, Tianjin University, Tianjin,300072, China |
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| Abstract: | A new process for the direct chlorination of 2-chloro-5-methylpyridine to yield 2-chloro-5-chloro-methylpyridine in an airlift loop reactor (ALR) has been studied. Five main reaction conditions including TR, na/ns, cp, Qg and dD/dR were optimized. The average molar yield and purity of 2-chloro-5-chloromethylpyridine obtained were 79% and 98.5% respectively under the optimum operating conditions. Finally, the efficiency for the preparation of 2-chloro-5-chloromethylpyridine with ALR and stirred tank reactor (STR) respectively was compared. |
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| Keywords: | 2-chloro-5-chloromethylpyridine 2-chloro-5-methylpyridine direct chlorination airlift loop reactor |
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