申请人:Honeywell International Inc.
公开号:US10000431B1
公开(公告)日:2018-06-19
A process for enhancing the selective and efficient production of (E)-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E), or 1233zd(E)). During the manufacture of HCFO-1233zd(E) by fluorination of 1,1,1,3,3-pentachloropropane (HCC-240fa), a by-product of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) is separated and then dehydrochlorinated to form 1,3,3-trichloro-3-fluoropropene (HCFO-1231zd). The HCFO-1231zd is then fluorinated to form HCFO-1233zd(E).
一种提高(E)-1-氯-3,3,3-三氟丙烯(HCFO-1233zd(E)或1233zd(E))的选择性和高效生产的工艺。在通过氟化1,1,1,3,3-五氯丙烷(HCC-240fa)制造HCFO-1233zd(E)时,将1,1,3,3-四氯-1-氟丙烷(HCFC-241fa)的副产物分离,然后脱氯生成1,3,3-三氯-3-氟丙烯(HCFO-1231zd)。然后将HCFO-1231zd氟化以形成HCFO-1233zd(E)。