一种环保型制冷剂HFO-1234yf生产原料1,1,2,3-四氯丙烯的制备方法  

Preparation Method of 1,1,2,3- Tetrachloropropene Used as Production Material of Environmentally Friendly Refrigerant HFO- 1234yf

作　　者：穆润敏 唐平 熊显云 

机构地区：[1]浙江衢化氟化学有限公司,浙江衢州324004 [2]巨化集团公司,浙江衢州324004

出　　处：《有机氟工业》2015年第3期25-28,33,共5页Organo-Fluorine Industry

摘　　要：2,3,3,3-四氟丙烯(HFO-1234yf)是国家重点推广的低碳制冷剂产品,主要用于新型汽车空调制冷剂,实现减少温室气体排放的目的。HFO-1234yf的生产原料1,1,2,3-四氯丙烯的一种制备方法是以1,1,1,3,3-五氯丙烷为原料,该方法包括3个步骤:1)1,1,1,3,3-五氯丙烷(HCC-240)脱氯化氢反应得到1,3,3,3-四氯-1-丙烯;2)1,3,3,3-四氯-1-丙烯异构化反应得到2,3,3,3-四氯-1-丙烯;3)2,3,3,3-四氯-1-丙烯异构化反应得到1,1,2,3-四氯丙烯。将步骤3得到的产物经精馏等单元操作后即得到纯度99.5%的产品。2,3,3,3- Tetrafluoropropene（ also known as HFO- 1234yf） is a low carbon refrigerant product which achieves a lot of promotion of the nation. It＇s mainly used in automotive air conditioner refrigerant to achieve the goal of reducing greenhouse gas emissions. The raw material of HFO- 1234 yf production is 1,1,2,3-tetrachloropropene. This is a method for the preparation of 1,1,2,3- tetrachloropropene using 1,1,1,3,3-pentachloropropane as a raw material. This method includs three steps： 1） through the removal reaction of hydrogen chloride of 1,1,1,3,3- pentachloropropane（ HCC- 240） to get 1,3,3,3- tetrachloro- 1- propene; 2） through the isomerization reaction of 1,3,3,3- tetrachloro- 1- propene to get 2,3,3,3- tetrachloro- 1- propene; 3） through the isomerization reaction of 2,3,3,3- tetrachloro- 1- propene to get 1,1,2,3- tetrachloropropene. After rectification,the purity of the product obtained from the process 3 is 99. 5%.

关 键 词：2 3 3 3-四氟丙烯 1 1 2 3-四氯丙烯 制备方法 

分 类 号：TQ222.424[化学工程—有机化工]