公开(公告)号：EP3680225A1

公开(公告)日：2020-07-15

申请号：EP18854525.5

申请日：2018-06-25

申请人： Zhejiang Quhua Fluor-Chemistry Co., Ltd.

发明人： HONG, Jiangyong ,  YANG, Bo ,  ZHANG, Yan ,  YU, Guojun ,  ZHAO, Yang ,  OU, Yanghao ,  GONG, Haitao

IPC分类号： C07C17/087 ,  C07C17/20 ,  C07C17/358 ,  C07C17/383 ,  C07C19/08 ,  C07C21/18 ,  B01J23/26

摘要： Disclosed is a method for co-producing various alkenyl halides and hydrofluoroalkanes: cis-1-chloro-3,3,3-trifluoropropene is introduced into a first reactor (1) to carry out an isomerization reaction in the presence of a first catalyst, and the reaction product is rectified to obtain a product trans-1-chloro-3,3,3-trifluoropropene; and 30-70wt% of trans-1-chloro-3,3,3 -trifluoropropene and hydrogen fluoride are mixed and then introduced into a second reactor (3) to carry out a reaction in the presence of a second catalyst to obtain a second reactor reaction product; the second reactor reaction product is introduced into a phase separator (4) for separation, and the obtained organic phase is rectified to obtain the products trans-1,3,3,3-tetrafluoropropene, cis-1,3,3,3-tetrafluoropropene and 1,1,1,3,3-pentafluoropropane. The invention has the advantages of simple process, high efficiency, high operaion flexibility, less investment and low energy consumption.

公开(公告)号：EP3505504A1

公开(公告)日：2019-07-03

申请号：EP17842503.9

申请日：2017-03-08

申请人： Zhejiang Quzhou Juxin Fluorine Chemical Co., Ltd. ,  Zhejiang Quhua Fluor-Chemistry Co Ltd ,  Zhejiang Engineering Design Co., Ltd

发明人： HONG, Jiangyong ,  WANG, Aiguo ,  YANG, Bo ,  ZHANG, Yan ,  YU, Guojun ,  ZHAO, Yang ,  OUYANG, Hao ,  PAN, Hao

IPC分类号： C07C17/20 ,  C07C17/25 ,  C07C17/383 ,  C07C21/18 ,  C07C21/04 ,  B01J23/26

摘要： This invention discloses a method for co-production of 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This method includes inputting the mixed gases of hydrogen fluoride and 1,1,1,3,3-pentachloropropane together with 1,1,2,3-tetrachloropropene into a first reactor for a reaction to obtain a reaction product; directly inputting the reaction product into a second reactor to perform a reaction in the presence of a catalyst; separating hydrogen chloride from the obtained product; obtaining 1-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene respectively after water washing, alkaline washing, drying and rectifying. This invention has the advantages of flexible production, simple process, small investment, low energy consumption and high conversion rate.