烷基酯法草甘膦生产工艺中的三乙胺连续化回收  

Continuous Recycling of Triethyl Amine Catalyst During Glyphosate Production from Dimethyl Phosphite

作　　者：任不凡[1] 周海杨[1] 胡跃华[1] 陈晓祥[2] 

机构地区：[1]浙江新安化工集团股份有限公司,建德311600 [2]华东理工大学化学工程系,上海200237

出　　处：《农药》2004年第6期271-274,共4页Agrochemicals

摘　　要：　介绍了烷基酯法草甘膦生产中催化剂三乙胺回收的连续化工艺。采用由单螺旋片静态混合器、重力层析器与非均相恒沸精馏塔相组合的流程 ,三乙胺的回收率达 98%以上 ,且操作简便、节能显著。连续化工艺已用于 30 0 0A technique for continuous recovery and recycling of triethyl amine catalyst during production of glyphosate from dimethyl phosphite is discussed. Percentage recovery of triethyl amine is >98% with a process using a helical-element static mixer,a gravity decanter,and a heterogeneous azeotropic distillation tower. Energy consumption is low and the operation is convenient. This technology has been used in a glyphosate production unit turning out 30,000 tons per year.

关 键 词：草甘膦 三乙胺 静态混合器 重力层析器 

分 类 号：TQ457.2[化学工程—农药化工]