GB1578933A - Manufacture of halogenated hydrocarbons - Google Patents

Manufacture of halogenated hydrocarbons Download PDF

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Publication number
GB1578933A
GB1578933A GB21806/77A GB2180677A GB1578933A GB 1578933 A GB1578933 A GB 1578933A GB 21806/77 A GB21806/77 A GB 21806/77A GB 2180677 A GB2180677 A GB 2180677A GB 1578933 A GB1578933 A GB 1578933A
Authority
GB
United Kingdom
Prior art keywords
tetrafluoroethane
dichloro
hydrogen
fluorine
chlorine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21806/77A
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English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10169139&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1578933(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB21806/77A priority Critical patent/GB1578933A/en
Priority to ZA00782480A priority patent/ZA782480B/xx
Priority to GR56139A priority patent/GR63074B/el
Priority to AU35909/78A priority patent/AU515866B2/en
Priority to MX173395A priority patent/MX149569A/es
Priority to AR272236A priority patent/AR223815A1/es
Priority to BE187878A priority patent/BE867285A/xx
Priority to IT23624/78A priority patent/IT1094775B/it
Priority to NLAANVRAGE7805499,A priority patent/NL175991C/xx
Priority to DE19782822471 priority patent/DE2822471A1/de
Priority to BR7803299A priority patent/BR7803299A/pt
Priority to CA000303896A priority patent/CA1117144A/en
Priority to FR7815223A priority patent/FR2391980A1/fr
Priority to ES470170A priority patent/ES470170A1/es
Priority to JP6117178A priority patent/JPS53147005A/ja
Publication of GB1578933A publication Critical patent/GB1578933A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
GB21806/77A 1977-05-24 1977-05-24 Manufacture of halogenated hydrocarbons Expired GB1578933A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
GB21806/77A GB1578933A (en) 1977-05-24 1977-05-24 Manufacture of halogenated hydrocarbons
ZA00782480A ZA782480B (en) 1977-05-24 1978-05-01 Manufacture of halogenated hydrocarbons
GR56139A GR63074B (en) 1977-05-24 1978-05-04 Manufacture of halogenated hydrocarbons
AU35909/78A AU515866B2 (en) 1977-05-24 1978-05-09 Manufacture of tetrafluoro ethane
MX173395A MX149569A (es) 1977-05-24 1978-05-09 Procedimiento mejorado para la obtencion de tetrafluoroetano
AR272236A AR223815A1 (es) 1977-05-24 1978-05-18 Procedimiento para la preparacion de tetrafluoretano
IT23624/78A IT1094775B (it) 1977-05-24 1978-05-19 Processo per la preparazione di idrocarburi alogenati
BE187878A BE867285A (fr) 1977-05-24 1978-05-19 Procede de production d'hydrocarbures halogenes
NLAANVRAGE7805499,A NL175991C (nl) 1977-05-24 1978-05-22 Werkwijze voor de bereiding van tetrafluorethaan.
DE19782822471 DE2822471A1 (de) 1977-05-24 1978-05-23 Verfahren zur herstellung von tetrafluoroaethan
BR7803299A BR7803299A (pt) 1977-05-24 1978-05-23 Processo para a manufatura de tetrafluoretano
CA000303896A CA1117144A (en) 1977-05-24 1978-05-23 Manufacture of halogenated hydrocarbons
FR7815223A FR2391980A1 (fr) 1977-05-24 1978-05-23 Procede de production d'hydrocarbures halogenes
ES470170A ES470170A1 (es) 1977-05-24 1978-05-24 Perfeccionamientos para preparar tetrafluoretano
JP6117178A JPS53147005A (en) 1977-05-24 1978-05-24 Process for preparing tetrafluoroethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21806/77A GB1578933A (en) 1977-05-24 1977-05-24 Manufacture of halogenated hydrocarbons

Publications (1)

Publication Number Publication Date
GB1578933A true GB1578933A (en) 1980-11-12

Family

ID=10169139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21806/77A Expired GB1578933A (en) 1977-05-24 1977-05-24 Manufacture of halogenated hydrocarbons

Country Status (15)

Country Link
JP (1) JPS53147005A (enExample)
AR (1) AR223815A1 (enExample)
AU (1) AU515866B2 (enExample)
BE (1) BE867285A (enExample)
BR (1) BR7803299A (enExample)
CA (1) CA1117144A (enExample)
DE (1) DE2822471A1 (enExample)
ES (1) ES470170A1 (enExample)
FR (1) FR2391980A1 (enExample)
GB (1) GB1578933A (enExample)
GR (1) GR63074B (enExample)
IT (1) IT1094775B (enExample)
MX (1) MX149569A (enExample)
NL (1) NL175991C (enExample)
ZA (1) ZA782480B (enExample)

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0164954A3 (en) * 1984-06-14 1986-04-30 Imperial Chemical Industries Plc Process for the preparation of 1-chloro-1,2,2,2-tetrafluorethane
EP0324478A1 (en) * 1988-01-15 1989-07-19 AUSIMONT S.r.l. Process for preparing 1,2-difluoroethane and 1,1,2-trifluoroethane
US4873381A (en) * 1988-05-20 1989-10-10 E. I. Du Pont De Nemours And Company Hydrodehalogenation of CF3 CHClF in the presence of supported Pd
EP0366404A1 (en) * 1988-10-25 1990-05-02 E.I. Du Pont De Nemours And Company Improved process for the preparation of 1,1,1,2-tetrafluoroethane
EP0399817A2 (en) 1989-05-23 1990-11-28 E.I. Du Pont De Nemours And Company Compositions and process of using in refrigeration
US4996379A (en) * 1988-05-30 1991-02-26 Central Glass Company, Limited Method of preparing 1,1,1,2-tetrafluoroethane from 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5008476A (en) * 1988-10-25 1991-04-16 E. I. Du Pont De Nemours And Company Process for the preparation of 1,1,1,2-tetrafluoroethane
US5030372A (en) * 1990-07-31 1991-07-09 E. I. Du Pont De Nemours And Company Catalytic equilibration to improve the relative yield of selected halocarbons
US5053564A (en) * 1989-01-19 1991-10-01 Societe Atochem Selective hydrogenolysis of perhalogenated ethane derivatives
US5057470A (en) * 1990-05-22 1991-10-15 E. I. Du Pont De Nemours And Company Regeneration of noble metal catalysts used in hydrodehalogenation of halogen-substituted hydrocarbons containing fluorine and at least one other halogen
GB2243606A (en) * 1989-12-06 1991-11-06 Rhone Poulenc Chemicals Improvement in or relating to the reduction of halogenated organic compounds.
US5068473A (en) * 1989-02-03 1991-11-26 E. I. Du Pont De Nemours And Company Hydrogenolysis/dehydrohalogenation process
US5097082A (en) * 1990-06-05 1992-03-17 E. I. Du Pont De Nemours And Company Production of saturated halohydrocarbons
US5124495A (en) * 1989-12-15 1992-06-23 Societe Atochem Selective hydrogenolysis of perhalogenated ethane derivatives
WO1992012113A1 (en) * 1990-12-26 1992-07-23 E.I. Du Pont De Nemours And Company Catalytic hydrogenolysis
US5136113A (en) * 1991-07-23 1992-08-04 E. I. Du Pont De Nemours And Company Catalytic hydrogenolysis
US5146018A (en) * 1989-02-03 1992-09-08 E. I. Du Pont De Nemours And Company Hydrogenolysis/dehydrohalogenation process
US5146013A (en) * 1990-11-16 1992-09-08 Solvay & Cie (Societe Anonyme) Process for the production of chloroform from carbon tetrachloride, catalytic compositions and process for obtaining them
AU628912B2 (en) * 1988-12-28 1992-09-24 E.I. Du Pont De Nemours And Company Aluminum fluoride catalyst compositions and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5202510A (en) * 1990-05-22 1993-04-13 E. I. Du Pont De Nemours And Company Activation of noble metal catalysts for use in hydrodehalogenation of halogen-substituted hydrocarbons containing fluorine and at least one other halogen
US5208397A (en) * 1991-04-09 1993-05-04 E. I. Du Pont De Nemours And Company Hydrogenolysis of halocarbon mixtures
US5208396A (en) * 1990-06-05 1993-05-04 E. I. Du Pont De Nemours And Company Production of saturated halohydrocarbons
US5243108A (en) * 1991-06-03 1993-09-07 E. I. Du Pont De Nemours And Company Aluminum fluoride catalyst compositions and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5258561A (en) * 1992-11-06 1993-11-02 E. I. Du Pont De Nemours And Company Catalytic chlorofluorination process for producing CF3 CHClF and CF3 CHF2
WO1994002440A1 (en) * 1992-07-17 1994-02-03 E.I. Du Pont De Nemours And Company Separation of tetrafluoroethane isomers
US5286398A (en) * 1992-02-13 1994-02-15 E. I. Du Pont De Nemours And Company End-capped polyalkylene oxide compositions with hydroxyl group functionality and use thereof for lubrication in refrigeration systems
US5300712A (en) * 1993-05-27 1994-04-05 E. I. Du Pont De Nemours And Company Homogeneous catalytic hydrodechlorination of chlorocarbons
US5302765A (en) * 1992-05-29 1994-04-12 E. I. Du Pont De Nemours And Company Catalytic process for producing CF3 CHClF
US5326914A (en) * 1993-05-27 1994-07-05 E. I. Du Pont De Nemours And Company Homogeneous catalytic hydrodechlorination of chlorocarbons
US5364992A (en) * 1989-10-10 1994-11-15 E. I. Du Pont De Nemours And Company Halocarbon hydrogenolysis
US5395999A (en) * 1992-11-06 1995-03-07 E. I. Du Pont De Nemours And Company Catalytic chlorofluorination process for producing CHClFCF3 and CHF2 CF3
US5426253A (en) * 1988-06-21 1995-06-20 Asahi Glass Company Ltd. Process for producing 1,1,1,2-tetrafluoroethane
US5447896A (en) * 1992-06-23 1995-09-05 E. I. Du Pont De Nemours And Company Hydrodehalogenation catalysts and their preparation and use
US5463151A (en) * 1989-07-12 1995-10-31 Ausimont S.R.L. Process for preparing 1,1,1,2-tetrafluoroethane
US5463152A (en) * 1994-12-08 1995-10-31 E. I. Du Pont De Nemours And Company Halofluorocarbon hydrogenolysis
US5470442A (en) * 1994-03-11 1995-11-28 E. I. Du Pont De Nemours And Company Separating and removing impurities from tetrafluoroethanes by using extractive distillation
US5481051A (en) * 1994-12-08 1996-01-02 E. I. Du Pont De Nemours And Company 2,2-dichlorohexafluoropropane hydrogenolysis
US5504265A (en) * 1990-10-11 1996-04-02 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions
US5516947A (en) * 1994-03-11 1996-05-14 E. I. Du Pont De Nemours And Company Process for converting chlorodifluoromethane and/or dichlorodifluoromethane
US5545777A (en) * 1989-02-02 1996-08-13 Asahi Glass Company Ltd. Process for producing a hydrogen-containing 2,2-difluoropropane
US5569797A (en) * 1992-01-07 1996-10-29 E. I. Du Pont De Nemours And Company Method of removing olefinic impurities from hydrochlorofluorocarbons
US5600040A (en) * 1992-07-17 1997-02-04 E. I. Du Pont De Nemours And Company Separation of tetrafluoroethane isomers
US5602288A (en) * 1992-05-29 1997-02-11 E. I. Du Pont De Nemours And Company Catalytic process for producing CF3 CH2 F
US5621151A (en) * 1990-10-09 1997-04-15 E. I. Du Pont De Nemours And Company Halocarbon hydrogenolysis
US5723429A (en) * 1994-03-11 1998-03-03 E. I. Du Pont De Nemours And Company Azeotropic or azeotrope-like compositions of tetrafluoroethane and chlorotetrafluoroethane
US5744660A (en) * 1992-06-10 1998-04-28 Imperial Chemical Industries Plc Products of tetrafluorothanes
US5750808A (en) * 1995-07-11 1998-05-12 E. I. Du Pont De Nemours And Company Dehydrohalogenation processes
US5830325A (en) * 1995-02-01 1998-11-03 E. I. Du Pont De Nemours And Company Separating and removing 1, 1, 1-trifluoroethane by using azeotropic distillation
US5841008A (en) * 1994-11-23 1998-11-24 E. I. Du Pont De Nemours And Company Hydrofluorocarbon production using heat carriers in high temperature hydrogenolysis
US5852223A (en) * 1994-07-29 1998-12-22 Daikin Industries, Ltd. Purification methods of pentafluoroethane
US5866730A (en) * 1993-04-02 1999-02-02 E. I. Du Pont De Nemours And Company Process for enriching 1,2-dichloro-1,1,2,2-tetrafluoroethane from a mixture of dichlorotetrafluoroethane isomers
US6291729B1 (en) 1994-12-08 2001-09-18 E. I. Du Pont De Nemours And Company Halofluorocarbon hydrogenolysis
US6525231B1 (en) 1992-10-22 2003-02-25 E. I. Du Pont De Nemours And Company Producing hydrofluoro compounds by hydrogenolysis of iodides
US7151197B2 (en) * 2001-09-28 2006-12-19 Great Lakes Chemical Corporation Processes for purifying chlorofluorinated compounds and processes for purifying CF3CFHCF3
US7216722B2 (en) 2003-04-17 2007-05-15 Great Lakes Chemical Corporation Fire extinguishing mixtures, methods and systems
US7368089B2 (en) 2003-08-13 2008-05-06 Great Lakes Chemical Corporation Systems and methods for producing fluorocarbons
WO2012082939A1 (en) 2010-12-14 2012-06-21 E.I. Du Pont De Nemours And Company Combinations of e-1,3,3,3-tetrafluoropropene and at least one tetrafluoroethane and their use for heating
WO2012082941A1 (en) 2010-12-14 2012-06-21 E. I. Du Pont De Nemours And Company Use of refrigerants comprising e-1,3,3,3-tetrafluoropropene and at least one tetrafluoroethane for cooling
WO2012106305A1 (en) 2011-01-31 2012-08-09 E.I. Du Pont De Nemours And Company Producing heating using working fluids comprising z 1,1,1,4,4,4-hexafluoro-2-butene

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319060A (en) * 1980-12-08 1982-03-09 Allied Chemical Corporation Process for producing 1,2-dichloro-1,1,2,2-tetrafluoroethane substantially free of 1,1-dichloro-1,2,2,2-tetrafluoroethane
JP2508807B2 (ja) * 1988-06-21 1996-06-19 旭硝子株式会社 Ｒ−１３４ａの製造法
WO1994020441A1 (fr) * 1993-03-05 1994-09-15 Daikin Industries, Ltd. Procede de production de 1,1,1,2,2-pentafluoroethane, procede de production de 2,2-dichloro-1,1,1-trifluoroethane, et procede de purification de 1,1,1,2,2-pentafluoroethane

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1267427A (fr) * 1960-09-09 1961-07-21 Ici Ltd Fabrication de 2-bromo-2-chloro-1: 1: 1-trifluoroéthane
FR1409109A (fr) * 1963-10-01 1965-08-20 Allied Chem Procédé de production de tétrafluoroéthylène par réduction de dichlorotétrafluoroétane
DE2060041C3 (de) * 1970-12-05 1973-10-25 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Verfahren zur Herstellung von fluorierten Kohlenwasserstoffen

Cited By (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0164954A3 (en) * 1984-06-14 1986-04-30 Imperial Chemical Industries Plc Process for the preparation of 1-chloro-1,2,2,2-tetrafluorethane
EP0324478A1 (en) * 1988-01-15 1989-07-19 AUSIMONT S.r.l. Process for preparing 1,2-difluoroethane and 1,1,2-trifluoroethane
US4873381A (en) * 1988-05-20 1989-10-10 E. I. Du Pont De Nemours And Company Hydrodehalogenation of CF3 CHClF in the presence of supported Pd
US4996379A (en) * 1988-05-30 1991-02-26 Central Glass Company, Limited Method of preparing 1,1,1,2-tetrafluoroethane from 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5426253A (en) * 1988-06-21 1995-06-20 Asahi Glass Company Ltd. Process for producing 1,1,1,2-tetrafluoroethane
EP0366404A1 (en) * 1988-10-25 1990-05-02 E.I. Du Pont De Nemours And Company Improved process for the preparation of 1,1,1,2-tetrafluoroethane
US5008476A (en) * 1988-10-25 1991-04-16 E. I. Du Pont De Nemours And Company Process for the preparation of 1,1,1,2-tetrafluoroethane
AU628912B2 (en) * 1988-12-28 1992-09-24 E.I. Du Pont De Nemours And Company Aluminum fluoride catalyst compositions and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
EP0452363B1 (en) * 1988-12-28 1994-07-20 E.I. Du Pont De Nemours And Company Aluminum fluoride catalyst and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5053564A (en) * 1989-01-19 1991-10-01 Societe Atochem Selective hydrogenolysis of perhalogenated ethane derivatives
US5545777A (en) * 1989-02-02 1996-08-13 Asahi Glass Company Ltd. Process for producing a hydrogen-containing 2,2-difluoropropane
US5068473A (en) * 1989-02-03 1991-11-26 E. I. Du Pont De Nemours And Company Hydrogenolysis/dehydrohalogenation process
US5146018A (en) * 1989-02-03 1992-09-08 E. I. Du Pont De Nemours And Company Hydrogenolysis/dehydrohalogenation process
EP0399817A2 (en) 1989-05-23 1990-11-28 E.I. Du Pont De Nemours And Company Compositions and process of using in refrigeration
US5608125A (en) * 1989-07-12 1997-03-04 Ausimont S.P.A. Process for preparing 1,1,1,2-tetrafluoroethane
US6037508A (en) * 1989-07-12 2000-03-14 Ausimont S.P.A. Process for preparing 1,1,1,2-tetrafluoroethane
US5463151A (en) * 1989-07-12 1995-10-31 Ausimont S.R.L. Process for preparing 1,1,1,2-tetrafluoroethane
US5880316A (en) * 1989-07-12 1999-03-09 Ausimont S.P.A. Process for preparing 1,1,1,2-tetrafluoroethane
US5430204A (en) * 1989-10-10 1995-07-04 E. I. Du Pont De Nemours And Company Halocarbon hydrogenolysis
US5364992A (en) * 1989-10-10 1994-11-15 E. I. Du Pont De Nemours And Company Halocarbon hydrogenolysis
GB2243606A (en) * 1989-12-06 1991-11-06 Rhone Poulenc Chemicals Improvement in or relating to the reduction of halogenated organic compounds.
US5124495A (en) * 1989-12-15 1992-06-23 Societe Atochem Selective hydrogenolysis of perhalogenated ethane derivatives
US5202510A (en) * 1990-05-22 1993-04-13 E. I. Du Pont De Nemours And Company Activation of noble metal catalysts for use in hydrodehalogenation of halogen-substituted hydrocarbons containing fluorine and at least one other halogen
US5057470A (en) * 1990-05-22 1991-10-15 E. I. Du Pont De Nemours And Company Regeneration of noble metal catalysts used in hydrodehalogenation of halogen-substituted hydrocarbons containing fluorine and at least one other halogen
US5208396A (en) * 1990-06-05 1993-05-04 E. I. Du Pont De Nemours And Company Production of saturated halohydrocarbons
US5097082A (en) * 1990-06-05 1992-03-17 E. I. Du Pont De Nemours And Company Production of saturated halohydrocarbons
US5030372A (en) * 1990-07-31 1991-07-09 E. I. Du Pont De Nemours And Company Catalytic equilibration to improve the relative yield of selected halocarbons
US5406009A (en) * 1990-07-31 1995-04-11 E. I. Du Pont De Nemours And Company Catalytic equilibration to improve the relative yield of selected halocarbons
WO1992002477A1 (en) * 1990-07-31 1992-02-20 E.I. Du Pont De Nemours And Company Catalytic equilibration to improve the relative yield of selected halocarbons
US5621151A (en) * 1990-10-09 1997-04-15 E. I. Du Pont De Nemours And Company Halocarbon hydrogenolysis
US6506950B1 (en) 1990-10-11 2003-01-14 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions
US5723701A (en) * 1990-10-11 1998-03-03 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions
US5504265A (en) * 1990-10-11 1996-04-02 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions
US5683978A (en) * 1990-10-11 1997-11-04 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons in cleaning compositions
US5146013A (en) * 1990-11-16 1992-09-08 Solvay & Cie (Societe Anonyme) Process for the production of chloroform from carbon tetrachloride, catalytic compositions and process for obtaining them
US6218587B1 (en) 1990-12-26 2001-04-17 E. I. Du Pont De Nemours And Company Catalytic hydrogenolysis
WO1992012113A1 (en) * 1990-12-26 1992-07-23 E.I. Du Pont De Nemours And Company Catalytic hydrogenolysis
US5446219A (en) * 1991-04-09 1995-08-29 E. I. Du Pont De Nemours And Company Hydrogenolysis of halocarbon mixtures
US5208397A (en) * 1991-04-09 1993-05-04 E. I. Du Pont De Nemours And Company Hydrogenolysis of halocarbon mixtures
US5300713A (en) * 1991-04-09 1994-04-05 E. I. Du Pont De Nemours And Company Hydrogenolysis of halocarbon mixtures
US5243108A (en) * 1991-06-03 1993-09-07 E. I. Du Pont De Nemours And Company Aluminum fluoride catalyst compositions and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane
US5136113A (en) * 1991-07-23 1992-08-04 E. I. Du Pont De Nemours And Company Catalytic hydrogenolysis
US5569797A (en) * 1992-01-07 1996-10-29 E. I. Du Pont De Nemours And Company Method of removing olefinic impurities from hydrochlorofluorocarbons
US5286398A (en) * 1992-02-13 1994-02-15 E. I. Du Pont De Nemours And Company End-capped polyalkylene oxide compositions with hydroxyl group functionality and use thereof for lubrication in refrigeration systems
US5602288A (en) * 1992-05-29 1997-02-11 E. I. Du Pont De Nemours And Company Catalytic process for producing CF3 CH2 F
US5302765A (en) * 1992-05-29 1994-04-12 E. I. Du Pont De Nemours And Company Catalytic process for producing CF3 CHClF
US5744660A (en) * 1992-06-10 1998-04-28 Imperial Chemical Industries Plc Products of tetrafluorothanes
US5629462A (en) * 1992-06-23 1997-05-13 E. I. Du Pont De Nemours And Company Hydrodehalogenation catalysts and their preparation and use
US5447896A (en) * 1992-06-23 1995-09-05 E. I. Du Pont De Nemours And Company Hydrodehalogenation catalysts and their preparation and use
WO1994002440A1 (en) * 1992-07-17 1994-02-03 E.I. Du Pont De Nemours And Company Separation of tetrafluoroethane isomers
US5600040A (en) * 1992-07-17 1997-02-04 E. I. Du Pont De Nemours And Company Separation of tetrafluoroethane isomers
US6525231B1 (en) 1992-10-22 2003-02-25 E. I. Du Pont De Nemours And Company Producing hydrofluoro compounds by hydrogenolysis of iodides
US5258561A (en) * 1992-11-06 1993-11-02 E. I. Du Pont De Nemours And Company Catalytic chlorofluorination process for producing CF3 CHClF and CF3 CHF2
US5395999A (en) * 1992-11-06 1995-03-07 E. I. Du Pont De Nemours And Company Catalytic chlorofluorination process for producing CHClFCF3 and CHF2 CF3
US5866730A (en) * 1993-04-02 1999-02-02 E. I. Du Pont De Nemours And Company Process for enriching 1,2-dichloro-1,1,2,2-tetrafluoroethane from a mixture of dichlorotetrafluoroethane isomers
US5326914A (en) * 1993-05-27 1994-07-05 E. I. Du Pont De Nemours And Company Homogeneous catalytic hydrodechlorination of chlorocarbons
US5300712A (en) * 1993-05-27 1994-04-05 E. I. Du Pont De Nemours And Company Homogeneous catalytic hydrodechlorination of chlorocarbons
US5470442A (en) * 1994-03-11 1995-11-28 E. I. Du Pont De Nemours And Company Separating and removing impurities from tetrafluoroethanes by using extractive distillation
US5516947A (en) * 1994-03-11 1996-05-14 E. I. Du Pont De Nemours And Company Process for converting chlorodifluoromethane and/or dichlorodifluoromethane
US5723429A (en) * 1994-03-11 1998-03-03 E. I. Du Pont De Nemours And Company Azeotropic or azeotrope-like compositions of tetrafluoroethane and chlorotetrafluoroethane
US5852223A (en) * 1994-07-29 1998-12-22 Daikin Industries, Ltd. Purification methods of pentafluoroethane
US5841008A (en) * 1994-11-23 1998-11-24 E. I. Du Pont De Nemours And Company Hydrofluorocarbon production using heat carriers in high temperature hydrogenolysis
US5463152A (en) * 1994-12-08 1995-10-31 E. I. Du Pont De Nemours And Company Halofluorocarbon hydrogenolysis
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JPS5638131B2 (enExample) 1981-09-04
JPS53147005A (en) 1978-12-21
FR2391980A1 (fr) 1978-12-22
IT1094775B (it) 1985-08-02
DE2822471A1 (de) 1978-12-07
DE2822471C2 (enExample) 1987-12-17
AR223815A1 (es) 1981-09-30
BE867285A (fr) 1978-11-20
MX149569A (es) 1983-11-25
NL175991C (nl) 1985-02-01
AU515866B2 (en) 1981-05-07
ZA782480B (en) 1979-04-25
CA1117144A (en) 1982-01-26
AU3590978A (en) 1979-11-15
IT7823624A0 (it) 1978-05-19
ES470170A1 (es) 1980-12-16
NL7805499A (nl) 1978-11-28
NL175991B (nl) 1984-09-03
GR63074B (en) 1979-08-08
FR2391980B1 (enExample) 1982-12-03
BR7803299A (pt) 1979-01-02

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PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19980424