TW324004B - Method of producing difluoromethane - Google Patents

Method of producing difluoromethane

Info

Publication number
TW324004B
TW324004B TW085107123A TW85107123A TW324004B TW 324004 B TW324004 B TW 324004B TW 085107123 A TW085107123 A TW 085107123A TW 85107123 A TW85107123 A TW 85107123A TW 324004 B TW324004 B TW 324004B
Authority
TW
Taiwan
Prior art keywords
carried out
producing difluoromethane
difluoromethane
producing
ch2cl2
Prior art date
Application number
TW085107123A
Other languages
English (en)
Inventor
Requieme Benoit
Perdrieux Sylvain
Cheminal Bernard
Lacroix Eric
Lamtz Andre
Original Assignee
Atochem Elf Sa
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=9480505&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TW324004(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem Elf Sa filed Critical Atochem Elf Sa
Application granted granted Critical
Publication of TW324004B publication Critical patent/TW324004B/zh

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00Acyclic saturated compounds containing halogen atoms
    • C07C19/08Acyclic saturated compounds containing halogen atoms containing fluorine
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/093Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
TW085107123A 1995-06-29 1996-06-13 Method of producing difluoromethane TW324004B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9507821A FR2736050B1 (fr) 1995-06-29 1995-06-29 Procede de fabrication du difluoromethane

Publications (1)

Publication Number Publication Date
TW324004B true TW324004B (en) 1998-01-01

Family

ID=9480505

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085107123A TW324004B (en) 1995-06-29 1996-06-13 Method of producing difluoromethane

Country Status (12)

Country Link
US (2) US6242659B1 (zh)
EP (1) EP0751108B1 (zh)
JP (1) JP3675959B2 (zh)
KR (1) KR100346127B1 (zh)
CN (1) CN1066428C (zh)
AU (1) AU700839B2 (zh)
CA (1) CA2180283C (zh)
DE (1) DE69606102T2 (zh)
ES (1) ES2142553T3 (zh)
FR (1) FR2736050B1 (zh)
GR (1) GR3032401T3 (zh)
TW (1) TW324004B (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736050B1 (fr) 1995-06-29 1997-08-01 Atochem Elf Sa Procede de fabrication du difluoromethane
FR2748022B1 (fr) 1996-04-29 1998-07-24 Atochem Elf Sa Procede de fabrication du difluoromethane
WO1999007470A1 (en) * 1997-08-08 1999-02-18 Alliedsignal Inc. Fluorination catalysts and process for their preparation
WO2004007410A1 (en) * 2002-07-10 2004-01-22 Srf Limited A process for the production of difluoromethane
AU2002317470A1 (en) * 2002-07-10 2004-02-02 Srf Limited A process for the production of difluoromethane
JP2004328986A (ja) * 2003-01-14 2004-11-18 Toyo Tetsushin Kogyo Kk モータ用固定子コアおよびその製造方法
US7214839B2 (en) * 2003-05-23 2007-05-08 Honeywell International Inc. Method of making hydrofluorocarbons
US7112708B2 (en) * 2004-04-01 2006-09-26 Honeywell International Inc. Method of making difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane
US7273835B2 (en) 2004-08-04 2007-09-25 Honeywell International Inc. Azeotrope-like compositions of difluoromethane
GB0507139D0 (en) 2005-04-08 2005-05-18 Ineos Fluor Holdings Ltd Catalyst
CN102527414B (zh) * 2011-12-28 2013-01-02 临海市利民化工有限公司 一种制备二氟甲烷或二氟一氯甲烷的氟化催化剂及制备方法和应用
FR2994430B1 (fr) 2012-08-10 2014-12-19 Arkema France Procede de production du difluoromethane
PL2950926T3 (pl) * 2013-01-29 2020-06-29 Arkema, Inc. Aktywacja i regeneracja katalizatorów fluorowania
US9612470B2 (en) 2014-01-10 2017-04-04 Apple Inc. Display with column spacer structures
JP7029093B2 (ja) * 2020-09-01 2022-03-03 セントラル硝子株式会社 トランス-1-クロロ-3,3,3-トリフルオロプロペンの製造方法

Family Cites Families (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR486333A (fr) 1917-07-31 1918-03-22 William L Finne Joint pour tuyaux
FR546883A (fr) 1922-02-07 1922-11-25 Dispositif d'arrêt des métiers à tisser munis de casse-chaîne
BE352462A (zh) 1927-06-30 1928-07-31
NL31421C (zh) 1927-07-13
FR55958E (fr) 1945-03-21 1952-09-10 Moteur à explosion rotatif
US2458551A (en) 1947-02-18 1949-01-11 Du Pont Preparation of carbon tetrafluoride
US2745886A (en) 1955-01-31 1956-05-15 Dow Chemical Co Process for fluorinating aliphatic halohydrocarbons with a chromium fluoride catalyst and process for preparing the catalyst
US3183276A (en) * 1960-03-16 1965-05-11 Edison Soc Process for the production of fluorinated organic compounds
DE1194826B (de) 1963-06-29 1965-06-16 Hoechst Ag Verfahren zur Stabilisierung und/oder Aktivierung von Fluorierungskatalysatoren der Chromoxyfluoridgruppe
US3446622A (en) 1966-01-11 1969-05-27 Ferrania Spa Process for the preparation of color images using 2 - ureido phenolic couplers
US3644545A (en) 1968-06-20 1972-02-22 Allied Chem Improved vapor phase fluorination procedure in the presence of catalyst and alkali metal fluoride
US3632834A (en) 1968-10-23 1972-01-04 Du Pont Process for preparing trichlorotrifluoroethane and dichlorotetrafluoroethane
US3855155A (en) * 1970-10-06 1974-12-17 Phillips Petroleum Co Barium promoted iron oxide catalyst suited for use in steam-iron process for producing hydrogen
US3880661A (en) 1971-12-29 1975-04-29 Eastman Kodak Co Silver halide emulsion containing acylamidophenol photographic couplers
JPS5233604B2 (zh) * 1973-05-08 1977-08-30
NL274474A (zh) * 1973-09-24 1900-01-01
JPS5182206A (en) 1975-01-16 1976-07-19 Asahi Glass Co Ltd Futsusokashokubaino katsuseiijihoho
JPS5638131A (en) 1979-09-06 1981-04-13 Kawasaki Heavy Ind Ltd Contact method betweeen solid and liquid
FR2501064A1 (fr) 1980-12-29 1982-09-10 Ugine Kuhlmann Catalyseurs de fluoruration en phase gazeuse des hydrocarbures chlores et chlorofluores aliphatiques, a base d'oxyde de chrome depose sur charbon actif, et procedes de fluoruration utilisant ces catalyseurs
FR2501062A1 (fr) 1980-12-29 1982-09-10 Ugine Kuhlmann Catalyseurs de fluoruration en phase gazeuse de derives chlores aliphatiques, a base de microbilles d'oxyde de chrome, et procedes de fluoruration utilisant ces catalyseurs
FR2501056A1 (fr) 1980-12-29 1982-09-10 Ugine Kuhlmann Catalyseurs de fluoruration en phase gazeuse des hydrocarbures chlores et chlorofluores aliphatiques, a base de sels ou oxydes de chrome et de phosphate d'aluminium, et procedes de fluoruration utilisant ces catalyseurs
JPS601731A (ja) 1983-06-17 1985-01-07 Matsushita Electric Ind Co Ltd トロイダル型偏向ヨ−ク
FR2556340B1 (fr) 1983-12-13 1986-05-16 Atochem Procede catalytique de preparation d'hexafluoroacetone
FR2556339B1 (fr) 1983-12-13 1986-05-16 Atochem Procede catalytique de preparation de trifluoroacetaldehyde
ES8607817A1 (es) 1985-05-17 1986-06-16 Pons Rovira Juan Procedimiento de soldadura por ultrasonidos de tejido de poliamida
FR2590251B1 (fr) 1985-11-15 1988-10-14 Atochem Procede de synthese du chloropentafluoroethane a partir de dichlorotetrafluoroethane et d'acide fluorhydrique
BR8707365A (pt) 1986-06-26 1988-09-13 Mitsui Toatsu Chemicals Processo de producao de cloro
CA1260229A (en) 1986-06-30 1989-09-26 Mitsui Chemicals, Inc. Production process of chlorine
CA1310335C (en) 1988-02-12 1992-11-17 Leo E. Manzer Gas-phase fluorination process
US5051537A (en) 1988-02-12 1991-09-24 E. I. Du Pont De Nemours And Company Gas-phase fluorination
JPH0685878B2 (ja) 1988-04-13 1994-11-02 ダイキン工業株式会社 クロム系フッ素化触媒の賦活方法
USH1129H (en) 1989-02-24 1993-01-05 E. I. Du Pont De Nemours And Company Process for manufacture of 1,1,1,2-tetrafluoroethane
AU645063B2 (en) 1990-03-13 1994-01-06 Daikin Industries, Ltd. Process for preparing 1,1,1,2-tetrafluoroethane
GB9007029D0 (en) 1990-03-29 1990-05-30 Ici Plc Chemical process
GB9020084D0 (en) 1990-09-14 1990-10-24 Ici Plc Chemical process
US5227350A (en) 1990-09-14 1993-07-13 Imperial Chemical Industries Plc Fluorination catalyst regeneration
FR2669022B1 (fr) 1990-11-13 1992-12-31 Atochem Procede de fabrication du tetrafluoro-1,1,1,2-ethane.
JP3031729B2 (ja) 1991-02-22 2000-04-10 旭硝子株式会社 飽和ハロゲン化炭化水素の精製方法
GB9107677D0 (en) 1991-04-11 1991-05-29 Ici Plc Chemical process
JP2897454B2 (ja) 1991-04-19 1999-05-31 昭和電工株式会社 1,1,1,2−テトラフルオロエタンの精製法
ES2106138T3 (es) 1991-06-14 1997-11-01 Ici Plc Produccion de bis(fluorometil)eter y difluorometano.
US5136113A (en) 1991-07-23 1992-08-04 E. I. Du Pont De Nemours And Company Catalytic hydrogenolysis
JPH0550953A (ja) 1991-08-26 1993-03-02 Hitachi Constr Mach Co Ltd 履帯式走行装置のサイドフレーム
GB9125678D0 (en) 1991-12-03 1992-01-29 Ici Plc Catalyst treatment process
FR2684567B1 (fr) 1991-12-09 1994-11-04 Atochem Catalyseurs massiques a base d'oxydes de chrome et de nickel, et leur application a la fluoration d'hydrocarbures halogenes.
IT1252658B (it) 1991-12-23 1995-06-20 Ausimont Spa Procedimento per la depurazione dell'1,1,1-trifluoro-2-fluoroetano
FR2686875B1 (fr) 1992-01-30 1994-04-08 Atochem Elf Sa Procede de fabrication du 1,1,1,2-tetrafluoroethane.
JP3261165B2 (ja) 1992-06-12 2002-02-25 旭硝子株式会社 塩化メチレンのフッ素化方法
MX9303208A (es) 1992-06-17 1994-01-31 Alliend Signal Inc Mejoras en un proceso de fluorizacion en fase de vapor.
US5262575A (en) 1992-08-04 1993-11-16 The Dow Chemical Company Production of allylic chlorides
JPH06263657A (ja) 1993-03-11 1994-09-20 Showa Denko Kk ジフルオロメタンの製造法
JPH06263658A (ja) 1993-03-11 1994-09-20 Showa Denko Kk ジフルオロメタンの製法
GB9404715D0 (en) * 1993-03-24 1994-04-27 Ici Plc Production of difluoromethane
EP0629440B1 (en) 1993-06-18 1998-01-14 Showa Denko Kabushiki Kaisha Fluorination catalyst and fluorination process
ES2105565T3 (es) 1993-10-13 1997-10-16 Atochem Elf Sa Procedimiento para la purificacion del 1,1,1,2-tetrafluoretano.
US6274781B1 (en) 1993-11-01 2001-08-14 E. I. Du Pont De Nemours And Company Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF
FR2713634B1 (fr) 1993-12-09 1996-01-19 Atochem Elf Sa Fluoration catalytique d'hydrocarbures halogènes en phase gazeuse.
FR2713633B1 (fr) 1993-12-09 1996-01-19 Atochem Elf Sa Fluoration en phase gazeuse au moyen de catalyseurs cristallisés.
DE4419534C1 (de) 1994-06-03 1995-10-19 Hoechst Ag Verfahren zur Regenerierung eines chrom- und magnesiumhaltigen Fluorierungskatalysators
FR2736050B1 (fr) 1995-06-29 1997-08-01 Atochem Elf Sa Procede de fabrication du difluoromethane
US6373452B1 (en) 1995-08-03 2002-04-16 Fujiitsu Limited Plasma display panel, method of driving same and plasma display apparatus
US5763708A (en) 1995-09-20 1998-06-09 Allied Signal Inc. Process for the production of difluoromethane
FR2748022B1 (fr) 1996-04-29 1998-07-24 Atochem Elf Sa Procede de fabrication du difluoromethane
US5666828A (en) 1996-06-26 1997-09-16 Praxair Technology, Inc. Cryogenic hybrid system for producing low purity oxygen and high purity oxygen

Also Published As

Publication number Publication date
US6639115B2 (en) 2003-10-28
ES2142553T3 (es) 2000-04-16
DE69606102T2 (de) 2000-08-10
US6242659B1 (en) 2001-06-05
CA2180283A1 (fr) 1996-12-30
AU700839B2 (en) 1999-01-14
JP3675959B2 (ja) 2005-07-27
EP0751108B1 (fr) 2000-01-12
FR2736050B1 (fr) 1997-08-01
US20010003786A1 (en) 2001-06-14
CN1144213A (zh) 1997-03-05
CN1066428C (zh) 2001-05-30
KR100346127B1 (ko) 2002-10-31
CA2180283C (fr) 2007-01-09
GR3032401T3 (en) 2000-05-31
JPH0920696A (ja) 1997-01-21
EP0751108A1 (fr) 1997-01-02
AU5627296A (en) 1997-01-09
FR2736050A1 (fr) 1997-01-03
DE69606102D1 (de) 2000-02-17
KR970001290A (ko) 1997-01-24

Similar Documents

Publication Publication Date Title
TW324004B (en) Method of producing difluoromethane
EP0877009A4 (en) 1,1,1,3,3-PENTAFLUOROPROPANE PRODUCTION PROCESS
MY116238A (en) Method of producing chlorine dioxide
GB2322892B (en) A process in which a foamed cell is used as a workover, completion, or kill fluid
HUP9802978A2 (hu) Eljárás 1,1,1,3,3-pentafluor-propán előállítására
HU9200220D0 (en) Fluoridating catalyst and method for producing fluoridated hydrocarbons
HUT46638A (en) Process for producing 1,1,1-trifluoro-2,2-dichloroethane in the presence of hydrogen fluoride catalyst
TW290531B (en) Production of difluoromethane
NO308355B1 (no) FremgangsmÕte for oksyklorering av etylen
AU1861688A (en) Synthesis of 1 chloro-1,1-difluoroethane
WO2002026672A3 (en) Fluorination process
UA41914C2 (uk) Спосіб одержання 1,2-дихлороетану
FR2756553B1 (fr) Synthese du pentafluorure de phosphore par fluoration du trichlorure de phosphore
EP0645365A4 (en) METHOD FOR PRODUCING 2-FLUOR ISOBUTTERIC ACID AND ITS ESTER.
TW328071B (en) Process for the synthesis of difluoromethane
AR001690A1 (es) Procedimiento para la preparación de 1,1-difluoroetano
EP0733613A4 (en) METHOD FOR PRODUCING DIFLUORMETHANE AND 1,1,1,2-TETRAFLUORETHANE
EP0860413A4 (en) PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE
ES2045670T3 (es) Procedimiento para la obtencion de 1, 1, 1- trifluor - 2, 2 -dicloroetano a presion elevada.
DE69905471D1 (de) Verfahren zur kontinuierlichen herstellung eines gemisches aus phosphopentafluorid und chlorwasserstoff, und erhaltenes gemisch
GB0021618D0 (en) Production of hydrofluoroalkanes
ES2124892T3 (es) Procedimiento para la preparacion de hidrofluorocarburos lineales con un grupo terminal de substituyentes hidrogenados.
DK0853605T5 (da) Fremgangsmåde til fremstilling af 1,1,1,2-tetraflourethan
ES2157395T3 (es) Procedimiento para la preparacion de difluorometano.
WO1999026906A3 (en) Method of producing hydrofluorocarbons

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees