| 2-氯-5-氯甲基吡啶精制工艺研究 |
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| 引用本文： | 刘孝平,戴锋,吴庆芳,薛光才,尤文玲.2-氯-5-氯甲基吡啶精制工艺研究[J].世界农药,2007,29(Z1). |
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| 作者姓名： | 刘孝平 戴锋 吴庆芳 薛光才 尤文玲 |
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| 作者单位： | 湖北沙隆达股份有限公司企业技术中心,湖北,荆州,434001 |
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| 摘 要： | 针对工业生产上采用二次蒸馏法精制2-氯-5-氯甲基吡啶(CCMP)的存在的主要问题,通过低温结晶的办法,优化精制工艺,使CCMP合成的总收率达到了74%.与原有工艺相比,合成总收率提高了7%,减少了废渣的排放,有效地降低了生产成本,经济和社会效益显著,具有很好的推广应用价值.
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| 关 键 词： | 2-氯-5-氯甲基吡啶 结晶精制 热敏物质 |
The Study on the Refining Technology of 2-Chlor-5-Chlormethylpyridine |
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| Liu Xiaoping,Dai Feng,Wu Qingfang,Xue Guangcai,You Wenling.The Study on the Refining Technology of 2-Chlor-5-Chlormethylpyridine[J].World Pesticides,2007,29(Z1). |
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| Authors: | Liu Xiaoping Dai Feng Wu Qingfang Xue Guangcai You Wenling |
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| Abstract: | According to the main problem of refining technology of 2-chlor-5-chlormethylpyridine by twice distillation, effective improvement was studied to increase the reaction conversion to 74% by crystallication at low temperature. Compared with original technology, the reaction conversion was increased 7 %, and the production cost was reduced. The results indicated that the new method had an obvious economic and social benefits,and was worthy of extensions and applications. |
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| Keywords: | 2-chlor-5-chlormethylpyridine crystallization thermosensitive material |
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