申请人:Devic Michel
公开号:US20100305370A1
公开(公告)日:2010-12-02
The invention relates to a gas-phase continuous method for preparing 2,3,3,3-tetrafluoro-1-propene, said method comprising the following steps: (i) hydrogenation of hexafluoropropylene to form 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the previous step to 1,2,3,3,3-pentafluoropropene-1; (iii) hydrogenation of the 1,2,3,3,3-pentafluoropropene-1 obtained in the previous step to form 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the previous step to form 2,3,3,3-tetrafluoro-1-propene.
本发明涉及一种气相连续制备2,3,3,3-四氟-1-丙烯的方法,该方法包括以下步骤:(i)六氟丙烯的加氢反应,生成1,1,1,2,3,3-六氟丙烷;(ii)对上述步骤得到的1,1,1,2,3,3-六氟丙烷进行脱氟反应,生成1,2,3,3,3-五氟丙烯-1;(iii)对上述步骤得到的1,2,3,3,3-五氟丙烯-1进行加氢反应,生成1,1,1,2,3-五氟丙烷;(iv)对上述步骤得到的1,1,1,2,3-五氟丙烷进行脱氟反应,生成2,3,3,3-四氟-1-丙烯。