公开(公告)号：DE69614126D1

公开(公告)日：2001-08-30

申请号：DE69614126

申请日：1996-08-16

Applicant: HONEYWELL INT INC

Inventor： TUNG SUNG ,  VISO ROGELIO ,  SMITH MILES ,  MCKOWN WARREN ,  FRIEDENSON PHILIP ,  CLEMMER GENE ,  CERRI GUSTAVO ,  CHIU YUON ,  JASKOT MICHAEL

IPC: B01J23/26 ,  C07B61/00 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C17/269 ,  C07C17/383 ,  C07C19/08

Abstract: This invention relates to a process for producing 1,1,1,2-tetrafluoroethane (HFC-134a). The process reacts, 1,1,1-trifluoro-2-chloroethane (HCFC-133a) and hydrogen fluoride in a first reactor. The product resulting from the first reaction step is brought to a second reactor together with trichloroethylene and hydrogen fluoride. The second reaction is conducted at a higher temperature than the first reactor. Optionally, HCl is removed prior to removal of the crude HFC-134a product. Unreacted HCFC-133a, trichloroethylene and hydrogen fluoride may be recycled back to the first reactor.

公开(公告)号：DE69614126T2

公开(公告)日：2002-03-21

申请号：DE69614126

申请日：1996-08-16

Applicant: HONEYWELL INT INC

Inventor： TUNG SUNG ,  VISO ROGELIO ,  SMITH MILES ,  MCKOWN WARREN ,  FRIEDENSON PHILIP ,  CLEMMER GENE ,  CERRI GUSTAVO ,  CHIU YUON ,  JASKOT MICHAEL

IPC: B01J23/26 ,  C07B61/00 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C17/269 ,  C07C17/383 ,  C07C19/08

Abstract: This invention relates to a process for producing 1,1,1,2-tetrafluoroethane (HFC-134a). The process reacts, 1,1,1-trifluoro-2-chloroethane (HCFC-133a) and hydrogen fluoride in a first reactor. The product resulting from the first reaction step is brought to a second reactor together with trichloroethylene and hydrogen fluoride. The second reaction is conducted at a higher temperature than the first reactor. Optionally, HCl is removed prior to removal of the crude HFC-134a product. Unreacted HCFC-133a, trichloroethylene and hydrogen fluoride may be recycled back to the first reactor.

公开(公告)号：DE69626834T2

公开(公告)日：2003-12-18

申请号：DE69626834

申请日：1996-09-13

Applicant: HONEYWELL INT INC

Inventor： CLEMMER GENE ,  SMITH MILES ,  TUNG SUNG ,  BASS STEPHEN

IPC: C07B61/00 ,  C07C17/20 ,  B01J23/26 ,  C07C17/383 ,  C07C19/08

Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.

公开(公告)号：DE69626834D1

公开(公告)日：2003-04-24

申请号：DE69626834

申请日：1996-09-13

Applicant: HONEYWELL INT INC

Inventor： CLEMMER GENE ,  SMITH MILES ,  TUNG SUNG ,  BASS STEPHEN

IPC: C07B61/00 ,  C07C17/20 ,  B01J23/26 ,  C07C17/383 ,  C07C19/08

Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.