申请人:Honeywell International Inc.
公开号:US09994502B1
公开(公告)日:2018-06-12
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 1,3,3-trichloro-1,1-difluoropropane (HCFC-242fa) is separated and then dehydrochlorinated to form 1,3-chloro-3,3-difluoropropene (HCFO-1232zd). The HCFO-1232zd is then fluorinated to form HCFO-1233zd(E).
一种增强(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过程。在通过氟化1,1,1,3,3-五氯丙烷(HCC-240fa)制造HCFO-1233zd(E)时,将1,3,3-三氯-1,1-二氟丙烷(HCFC-242fa)的副产物分离出来,然后脱氯生成1,3-氯-3,3-二氟丙烯(HCFO-1232zd)。然后将HCFO-1232zd氟化成HCFO-1233zd(E)。