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Position: Home > Articles > THE STUDY ON THE REFINING TECHNOLOGY OF 2-CHLOR-5-CHLORMETHYLPYRIDINE World Pesticides 2007,29 (1) 17-19

2-氯-5-氯甲基吡啶精制工艺研究

作  者:
刘孝平;戴锋;吴庆芳;薛光才;尤文玲
单  位:
湖北沙隆达股份有限公司
关键词:
2-氯-5-氯甲基吡啶;结晶精制;热敏物质
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.
译  名:
THE STUDY ON THE REFINING TECHNOLOGY OF 2-CHLOR-5-CHLORMETHYLPYRIDINE
关键词:
2-CHLOR-5-CHLORMETHYLPYRIDINE%CRYSTALLIZATION%THERMOSENSITIVE MATERIAL
摘  要:
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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