Publication number: 20240034705
Abstract: The present disclosure provides a method for conversion of a mixture of high-boiling fluorinated components comprising 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa), 1,3,3-trichloro-1,1-difluoropropane (HCFC-242fa), 1,1,3-trichloro-1,3-difluoropropane (HCFC-242fb), 3,3-dichloro-1,1,1-trifluoropropane (HCFC-243fa), 1,3-dichloro-1,1,3-trifluoropropane (HCFC-243fb), 3-chloro-1,1,1,3-tetrafluoropropane (HCFC-244fa), their isomers, and combinations thereof, to 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). Heavy impurities, such as oligomers and other high boiling impurities, that are present may be purged during the process to prevent yield loss and reduction of catalyst efficacy.
Type:
Application
Filed:
September 7, 2023
Publication date:
February 1, 2024
Inventors:
Haiyou Wang, Gustavo Cerri, Jinhua Yao, Jennifer W. McClaine
Patent number: 11795125
Abstract: The present disclosure provides a method for conversion of a mixture of high-boiling fluorinated components comprising 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa), 1,3,3-trichloro-1, 1-difluoropropane (HCFC-242fa), 1,1,3-trichloro-1,3-difluoropropane (HCFC-242fb), 3,3-dichloro-1,1,1-trifluoropropane (HCFC-243fa), 1,3-dichloro-1,1,3-trifluoropropane (HCFC-243fb), 3-chloro-1,1,1,3-tetrafluoropropane (HCFC-244fa), their isomers, and combinations thereof, to 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). Heavy impurities, such as oligomers and other high boiling impurities, that are present may be purged during the process to prevent yield loss and reduction of catalyst efficacy.
Type:
Grant
Filed:
December 16, 2022
Date of Patent:
October 24, 2023
Assignee:
Honeywell International Inc.
Inventors:
Haiyou Wang, Gustavo Cerri, Jinhua Yao, Jennifer W. McClaine
Publication number: 20230234903
Abstract: The present disclosure provides a method for conversion of a mixture of high-boiling fluorinated components comprising 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa), 1,3,3-trichloro-1,1-difluoropropane (HCFC-242fa), 1,1,3-trichloro-1,3-difluoropropane (HCFC-242fb), 3,3-dichloro-1,1,1-trifluoropropane (HCFC-243fa), 1,3-dichloro-1,1,3-trifluoropropane (HCFC-243fb), 3-chloro-1,1,1,3-tetrafluoropropane (HCFC-244fa), their isomers, and combinations thereof, to 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). Heavy impurities, such as oligomers and other high boiling impurities, that are present may be purged during the process to prevent yield loss and reduction of catalyst efficacy.
Type:
Application
Filed:
December 16, 2022
Publication date:
July 27, 2023
Inventors:
Haiyou Wang, Gustavo Cerri, Jinhua Yao, Jennifer W. McClaine
Publication number: 20190144364
Abstract: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
Type:
Application
Filed:
June 11, 2018
Publication date:
May 16, 2019
Inventors:
Yuon Chiu, Stephen A. Cottrell, Hsueh Sung Tung, Haluk Kopkalli, Gustavo Cerri
Patent number: 9994503
Abstract: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
Type:
Grant
Filed:
April 4, 2016
Date of Patent:
June 12, 2018
Assignee:
HONEYWELL INTERNATIONAL INC.
Inventors:
Yuon Chiu, Stephen A. Cottrell, Hsueh Sung Tung, Haluk Kopkalli, Gustavo Cerri
Publication number: 20160304421
Abstract: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
Type:
Application
Filed:
April 4, 2016
Publication date:
October 20, 2016
Inventors:
Yuon Chiu, Stephen A. Cottrell, Hsueh Sung Tung, Haluk Kopkalli, Gustavo Cerri
Patent number: 9302963
Abstract: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
Type:
Grant
Filed:
August 9, 2012
Date of Patent:
April 5, 2016
Assignee:
HONEYWELL INTERNATIONAL INC.
Inventors:
Yuon Chiu, Stephen A. Cottrell, Hsueh Sung Tung, Haluk Kopkalli, Gustavo Cerri
Publication number: 20120301373
Abstract: A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.
Type:
Application
Filed:
August 9, 2012
Publication date:
November 29, 2012
Applicant:
HONEYWELL INTERNATIONAL INC.
Inventors:
YUON CHIU, STEPHEN A. COTTRELL, HSUEH SUNG TUNG, HALUK KOPKALLI, GUSTAVO CERRI