公开(公告)号：AU6725296A

公开(公告)日：1997-03-12

申请号：AU6725296

申请日：1996-08-16

Applicant: HONEYWELL INT INC

Inventor： TUNG HSUEH SUNG ,  VISO NEMESIO ROGELIO ,  SMITH ADDISON MILES ,  MCKOWN JEFFREY WARREN ,  FRIEDENSON JAY PHILIP ,  CLEMMER PAUL GENE ,  CERRI GUSTAVO ,  CHIU YUON ,  JASKOT STANLEY 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：AT203505T

公开(公告)日：2001-08-15

申请号：AT96927427

申请日：1996-08-16

Applicant: HONEYWELL INT INC

Inventor： TUNG HSUEH SUNG ,  VISO NEMESIO ROGELIO ,  SMITH ADDISON MILES ,  MCKOWN JEFFREY WARREN ,  FRIEDENSON JAY PHILIP ,  CLEMMER PAUL GENE ,  CERRI GUSTAVO ,  CHIU YUON ,  JASKOT STANLEY 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.