公开(公告)号：EP3336074A1

公开(公告)日：2018-06-20

申请号：EP17201423.5

申请日：2007-01-03

申请人： Honeywell International Inc.

发明人： MERKEL, Daniel C. ,  TUNG, Hsueh Sung ,  VAN DER PUY, Michael ,  MA, Jing Ji ,  DUBEY, Rajesh ,  LIGHT, Barbara ,  BORTZ, Cheryl ,  PHILLIPS, Steven D. ,  MUKHOPAHYAY, Sudip

IPC分类号： C07C17/087 ,  C07C21/19 ,  C09K5/00

CPC分类号： C07C19/10 ,  C07C17/04 ,  C07C17/06 ,  C07C17/087 ,  C07C17/206 ,  C07C17/21 ,  C07C17/25 ,  C07C21/18 ,  C07C19/01 ,  C07C21/073

摘要： Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF 3 CF=CH 2 (1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCl 2 =CClCH 2 Cl (which may be purchased or synthesized from 1,2,3-trichloropropane) is fluorinated (preferably with HF in gas-phase in the presence of a catalyst) to synthesize a compound such as CFaCCl=CH2, preferably in a 80-96% selectivity. The CF 3 CCl=CH 2 is preferably converted to CF 3 CFClCH 3 (244-isomer) using a SbCl 5 as the catalyst which is then transformed selectively to 1234yf, preferably in a gas-phase catalytic reaction using activated carbon as the catalyst. For the first step, a mixture of Cr2O3 and FeCl 3 /C is preferably used as the catalyst to achieve high selectivity to CF 3 CCl=CH 2 (96%). In the second step, SbCl 5 /C is preferably used as the selective catalyst for transforming 1233xf to 244-isomer, CF 3 CFClCH 3 . The intermediates are preferably isolated and purified by distillation and used in the next step without further purification, preferably to a purity level of greater than about 95%.

公开(公告)号：EP3336073A1

公开(公告)日：2018-06-20

申请号：EP17201421.9

申请日：2007-01-03

申请人： Honeywell International Inc.

发明人： MERKEL, Daniel C. ,  TUNG, Hsueh Sung ,  VAN DER PUY, Michael ,  MA, Jing Ji ,  DUBEY, Rajesh ,  LIGHT, Barbara ,  BORTZ, Cheryl ,  PHILLIPS, Steven D. ,  MUKHOPAHYAY, Sudip

IPC分类号： C07C17/087 ,  C07C21/19 ,  C09K5/00

CPC分类号： C07C19/10 ,  C07C17/04 ,  C07C17/06 ,  C07C17/087 ,  C07C17/206 ,  C07C17/21 ,  C07C17/25 ,  C07C21/18 ,  C07C19/01 ,  C07C21/073

摘要： Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF 3 CF=CH 2 (1234yf). Three steps may be used in preferred embodiments in which a feedstock such as CCl 2 =CClCH 2 Cl (which may be purchased or synthesized from 1,2,3-trichloropropane) is fluorinated (preferably with HF in gas-phase in the presence of a catalyst) to synthesize a compound such as CFaCCl=CH2, preferably in a 80-96% selectivity. The CF 3 CCl=CH 2 is preferably converted to CF 3 CFClCH 3 (244-isomer) using a SbCl 5 as the catalyst which is then transformed selectively to 1234yf, preferably in a gas-phase catalytic reaction using activated carbon as the catalyst. For the first step, a mixture of Cr2O3 and FeCl 3 /C is preferably used as the catalyst to achieve high selectivity to CF 3 CCl=CH 2 (96%). In the second step, SbCl 5 /C is preferably used as the selective catalyst for transforming 1233xf to 244-isomer, CF 3 CFClCH 3 . The intermediates are preferably isolated and purified by distillation and used in the next step without further purification, preferably to a purity level of greater than about 95%.