世界农药
世界農藥
세계농약
Pesticides of world
2007年
z1期
17-19
,共3页
刘孝平%戴锋%吴庆芳%薛光才%尤文玲
劉孝平%戴鋒%吳慶芳%薛光纔%尤文玲
류효평%대봉%오경방%설광재%우문령
2-氯-5-氯甲基吡啶%结晶精制%热敏物质
2-氯-5-氯甲基吡啶%結晶精製%熱敏物質
2-록-5-록갑기필정%결정정제%열민물질
2-chlor-5-chlormethylpyridine%crystallization%thermosensitive material
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.
針對工業生產上採用二次蒸餾法精製2-氯-5-氯甲基吡啶(CCMP)的存在的主要問題,通過低溫結晶的辦法,優化精製工藝,使CCMP閤成的總收率達到瞭74%.與原有工藝相比,閤成總收率提高瞭7%,減少瞭廢渣的排放,有效地降低瞭生產成本,經濟和社會效益顯著,具有很好的推廣應用價值.
침대공업생산상채용이차증류법정제2-록-5-록갑기필정(CCMP)적존재적주요문제,통과저온결정적판법,우화정제공예,사CCMP합성적총수솔체도료74%.여원유공예상비,합성총수솔제고료7%,감소료폐사적배방,유효지강저료생산성본,경제화사회효익현저,구유흔호적추엄응용개치.
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.
