DE69705767D1 - Verfahren zur Herstellung von Difluormethan - Google Patents

Verfahren zur Herstellung von Difluormethan

Info

Publication number
DE69705767D1
DE69705767D1 DE69705767T DE69705767T DE69705767D1 DE 69705767 D1 DE69705767 D1 DE 69705767D1 DE 69705767 T DE69705767 T DE 69705767T DE 69705767 T DE69705767 T DE 69705767T DE 69705767 D1 DE69705767 D1 DE 69705767D1
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
DE69705767T
Other languages
English (en)
Other versions
DE69705767T2 (de
Inventor
Dominique Garrait
Emmanuel Guiraud
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
Atofina 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=9491678&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69705767(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atofina SA filed Critical Atofina SA
Application granted granted Critical
Publication of DE69705767D1 publication Critical patent/DE69705767D1/de
Publication of DE69705767T2 publication Critical patent/DE69705767T2/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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE69705767T 1996-04-29 1997-04-02 Verfahren zur Herstellung von Difluormethan Expired - Lifetime DE69705767T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9605369A FR2748022B1 (fr) 1996-04-29 1996-04-29 Procede de fabrication du difluoromethane

Publications (2)

Publication Number Publication Date
DE69705767D1 true DE69705767D1 (de) 2001-08-30
DE69705767T2 DE69705767T2 (de) 2002-05-23

Family

ID=9491678

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69705767T Expired - Lifetime DE69705767T2 (de) 1996-04-29 1997-04-02 Verfahren zur Herstellung von Difluormethan

Country Status (12)

Country Link
US (1) US6635790B1 (de)
EP (1) EP0805136B1 (de)
JP (1) JP3681503B2 (de)
KR (1) KR100346285B1 (de)
CN (1) CN1101366C (de)
AU (1) AU1913397A (de)
CA (1) CA2203434C (de)
DE (1) DE69705767T2 (de)
ES (1) ES2160902T3 (de)
FR (1) FR2748022B1 (de)
GR (1) GR3036680T3 (de)
TW (1) TW448138B (de)

Families Citing this family (7)

* 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
WO1999025670A1 (en) * 1997-11-18 1999-05-27 Alliedsignal Inc. Process for the preparation of difluoromethane
US7371905B2 (en) * 2003-10-17 2008-05-13 Honeywell International Inc. Method of producing 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
CN102671680B (zh) * 2012-05-16 2014-05-07 临海市利民化工有限公司 一种制备五氟乙烷的氟化催化剂、制备方法及应用
FR2994430B1 (fr) * 2012-08-10 2014-12-19 Arkema France Procede de production du difluoromethane

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1129A (en) 1839-04-20 hillyer
DE451634C (de) 1926-03-19 1927-10-24 Johannes Peters Schloss mit feststehendem Patronentraeger und seitlichem Abzug fuer selbsttaetige Feuerwaffen
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
JPS5233604B2 (de) * 1973-05-08 1977-08-30
JPS5182206A (en) 1975-01-16 1976-07-19 Asahi Glass Co Ltd Futsusokashokubaino katsuseiijihoho
JPS5595393A (en) 1978-12-25 1980-07-19 Fujitsu Ltd Soldering device
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
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
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
FR2669022B1 (fr) 1990-11-13 1992-12-31 Atochem Procede de fabrication du tetrafluoro-1,1,1,2-ethane.
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.
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
DE69405185T2 (de) 1993-10-13 1998-02-05 Atochem Elf Sa Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan
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.
FR2736050B1 (fr) * 1995-06-29 1997-08-01 Atochem Elf Sa Procede de fabrication du difluoromethane
US5763708A (en) * 1995-09-20 1998-06-09 Allied Signal Inc. Process for the production of difluoromethane

Also Published As

Publication number Publication date
CN1101366C (zh) 2003-02-12
AU1913397A (en) 1997-11-06
FR2748022B1 (fr) 1998-07-24
EP0805136A1 (de) 1997-11-05
FR2748022A1 (fr) 1997-10-31
GR3036680T3 (en) 2001-12-31
TW448138B (en) 2001-08-01
KR100346285B1 (ko) 2004-03-20
CN1172097A (zh) 1998-02-04
EP0805136B1 (de) 2001-07-25
DE69705767T2 (de) 2002-05-23
JP3681503B2 (ja) 2005-08-10
CA2203434C (fr) 2007-10-23
ES2160902T3 (es) 2001-11-16
US6635790B1 (en) 2003-10-21
JPH1053544A (ja) 1998-02-24
CA2203434A1 (fr) 1997-10-29
KR970069960A (ko) 1997-11-07

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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