DE69606102D1 - Verfahren zur Herstellung von Difluormethan - Google Patents

Verfahren zur Herstellung von Difluormethan

Info

Publication number
DE69606102D1
DE69606102D1 DE69606102T DE69606102T DE69606102D1 DE 69606102 D1 DE69606102 D1 DE 69606102D1 DE 69606102 T DE69606102 T DE 69606102T DE 69606102 T DE69606102 T DE 69606102T DE 69606102 D1 DE69606102 D1 DE 69606102D1
Authority
DE
Germany
Prior art keywords
difluoromethane
preparation
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 - Lifetime
Application number
DE69606102T
Other languages
English (en)
Other versions
DE69606102T2 (de
Inventor
Benoit Requieme
Sylvain Perdrieux
Bernard Cheminal
Eric Lacroix
Andre Lantz
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.)
Arkema France SA
Original Assignee
Elf Atochem 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=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69606102(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elf Atochem SA filed Critical Elf Atochem SA
Application granted granted Critical
Publication of DE69606102D1 publication Critical patent/DE69606102D1/de
Publication of DE69606102T2 publication Critical patent/DE69606102T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206—Preparation 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)
DE69606102T 1995-06-29 1996-05-29 Verfahren zur Herstellung von Difluormethan Expired - Lifetime DE69606102T2 (de)

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 (2)

Publication Number Publication Date
DE69606102D1 true DE69606102D1 (de) 2000-02-17
DE69606102T2 DE69606102T2 (de) 2000-08-10

Family

ID=9480505

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69606102T Expired - Lifetime DE69606102T2 (de) 1995-06-29 1996-05-29 Verfahren zur Herstellung von Difluormethan

Country Status (12)

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

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
AU3912397A (en) * 1997-08-08 1999-03-01 Allied-Signal Inc. Fluorination catalysts and process for their preparation
EP1542949B1 (de) * 2002-07-10 2009-01-21 Srf Limited Verfahren zur herstellung von difluormethan
WO2004007410A1 (en) * 2002-07-10 2004-01-22 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
JP6465814B2 (ja) * 2013-01-29 2019-02-06 アーケマ・インコーポレイテッド フッ素化触媒の活性化および再生
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 (de) 1927-06-30 1928-07-31
NL31421C (de) 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 (de) * 1973-05-08 1977-08-30
BE613582A (de) * 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
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
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
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
FR2556339B1 (fr) 1983-12-13 1986-05-16 Atochem Procede catalytique de preparation de trifluoroacetaldehyde
FR2556340B1 (fr) 1983-12-13 1986-05-16 Atochem Procede catalytique de preparation d'hexafluoroacetone
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
KR910001299B1 (ko) 1986-06-26 1991-03-02 미쯔이도오아쯔 가가꾸 가부시기가이샤 염소의 제조방법
CA1260229A (en) 1986-06-30 1989-09-26 Mitsui Chemicals, Inc. Production process of chlorine
US5051537A (en) 1988-02-12 1991-09-24 E. I. Du Pont De Nemours And Company Gas-phase fluorination
CA1310335C (en) 1988-02-12 1992-11-17 Leo E. Manzer Gas-phase fluorination process
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
DE69221673T2 (de) 1991-06-14 1997-12-11 Imperial Chemical Industries Plc, London Herstellung von Bis(fluormethyl)äther und von Difluormethan
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
JPH06263658A (ja) 1993-03-11 1994-09-20 Showa Denko Kk ジフルオロメタンの製法
JPH06263657A (ja) 1993-03-11 1994-09-20 Showa Denko Kk ジフルオロメタンの製造法
GB9404703D0 (en) 1993-03-24 1994-04-27 Ici Plc Production of difluoromethane
DE69407870T2 (de) 1993-06-18 1998-08-27 Showa Denko Kk Fluorierungskatalysator und Fluorierungsverfahren
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
CN1144213A (zh) 1997-03-05
CN1066428C (zh) 2001-05-30
FR2736050A1 (fr) 1997-01-03
FR2736050B1 (fr) 1997-08-01
US6242659B1 (en) 2001-06-05
DE69606102T2 (de) 2000-08-10
KR100346127B1 (ko) 2002-10-31
US20010003786A1 (en) 2001-06-14
JP3675959B2 (ja) 2005-07-27
TW324004B (en) 1998-01-01
JPH0920696A (ja) 1997-01-21
AU5627296A (en) 1997-01-09
EP0751108B1 (de) 2000-01-12
KR970001290A (ko) 1997-01-24
ES2142553T3 (es) 2000-04-16
AU700839B2 (en) 1999-01-14
US6639115B2 (en) 2003-10-28
CA2180283C (fr) 2007-01-09
GR3032401T3 (en) 2000-05-31
CA2180283A1 (fr) 1996-12-30
EP0751108A1 (de) 1997-01-02

Similar Documents

Publication Publication Date Title
DE69628712D1 (de) Verfahren zur Herstellung von Dihalogenazolopyrimidinen
DE59607656D1 (de) Verfahren zur Herstellung von Alkylhydrogenchlorsilanen
DE59509204D1 (de) Verfahren zur Herstellung von Hydrogenalkoxysilanen
DE69519831D1 (de) Verfahren zur Herstellung von Methacryloxypropyl-Dimethylchlorosilan
DE59509333D1 (de) Verfahren zur Herstellung von 3-Acryloxypropylalkoxysilanen
DE69501412D1 (de) Verfahren zur Herstellung von Isocanaten
DE69606102D1 (de) Verfahren zur Herstellung von Difluormethan
DE59505473D1 (de) Verfahren zur Herstellung von Glykoloylaniliden
DE59501150D1 (de) Verfahren zur Herstellung von Polyisoolefinen
DE69520322D1 (de) Verfahren zur Herstellung von L-Ketohexose
DE69806876D1 (de) Verfahren zur Herstellung von 2-Chlorprop-1-en
DE59501307D1 (de) Verfahren zur Herstellung von Fluoranilinen
DE69705767D1 (de) Verfahren zur Herstellung von Difluormethan
DE69600385D1 (de) Verfahren zur Herstellung von Aminonitropyridinen
DE59500563D1 (de) Verfahren zur Herstellung von N-Alkenylcarbonsäureamiden
DE69513008D1 (de) Verfahren zur Herstellung von Hydroxyalkoxybenzophenonen
DE69607541D1 (de) Verfahren zur Herstellung von p-Bromfluorobenzol
DE59605105D1 (de) Verfahren zur Herstellung von substituierten Aminocarbonyltriazolinonen
DE59607068D1 (de) Verfahren zur Herstellung von Dimethyldichlorsilan
DE59500564D1 (de) Verfahren zur Herstellung von Benzthiazolylazoanilinen
DE59605227D1 (de) Verfahren zur Herstellung von ortho-Nitro-benzonitrilen
DE69612027D1 (de) Verfahren zur Herstellung von Difluormethan
DE59505555D1 (de) Verfahren zur Herstellung von 1-Chlor-3-methyl-but-2-en
DE59802385D1 (de) Verfahren zur Herstellung von N-Alkylcarbazolen
DE69415506D1 (de) Verfahren zur Herstellung von Beta-Thymidine

Legal Events

Date Code Title Description
8363 Opposition against the patent
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE GESTHUYSEN, VON ROHR & EGGERT, 45128

8365 Fully valid after opposition proceedings