DE69410456D1 - Herstellung von difluoromethan - Google Patents

Herstellung von difluoromethan

Info

Publication number
DE69410456D1
DE69410456D1 DE69410456T DE69410456T DE69410456D1 DE 69410456 D1 DE69410456 D1 DE 69410456D1 DE 69410456 T DE69410456 T DE 69410456T DE 69410456 T DE69410456 T DE 69410456T DE 69410456 D1 DE69410456 D1 DE 69410456D1
Authority
DE
Germany
Prior art keywords
difluoromethane
production
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 - Fee Related
Application number
DE69410456T
Other languages
English (en)
Other versions
DE69410456T2 (de
Inventor
John Scott
Michael Watson
David Bonniface
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.)
Ineos Fluor Holdings 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=26302637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69410456(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB939306072A external-priority patent/GB9306072D0/en
Priority claimed from GB939306089A external-priority patent/GB9306089D0/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of DE69410456D1 publication Critical patent/DE69410456D1/de
Application granted granted Critical
Publication of DE69410456T2 publication Critical patent/DE69410456T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
DE69410456T 1993-03-24 1994-03-14 Herstellung von difluoromethan Expired - Fee Related DE69410456T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939306072A GB9306072D0 (en) 1993-03-24 1993-03-24 Production of difluoromethane
GB939306089A GB9306089D0 (en) 1993-03-24 1993-03-24 Production of difluoromethane
PCT/GB1994/000498 WO1994021580A1 (en) 1993-03-24 1994-03-14 Production of difluoromethane

Publications (2)

Publication Number Publication Date
DE69410456D1 true DE69410456D1 (de) 1998-06-25
DE69410456T2 DE69410456T2 (de) 1998-09-17

Family

ID=26302637

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69410456T Expired - Fee Related DE69410456T2 (de) 1993-03-24 1994-03-14 Herstellung von difluoromethan
DE69410455T Expired - Fee Related DE69410455T2 (de) 1993-03-24 1994-03-14 Herstellung von difluoromethan

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69410455T Expired - Fee Related DE69410455T2 (de) 1993-03-24 1994-03-14 Herstellung von difluoromethan

Country Status (15)

Country Link
US (2) US5672786A (de)
EP (2) EP0690833B1 (de)
JP (2) JPH08508029A (de)
KR (2) KR100323102B1 (de)
CN (2) CN1057750C (de)
AU (2) AU691486B2 (de)
BR (2) BR9406201A (de)
CA (2) CA2157528C (de)
DE (2) DE69410456T2 (de)
ES (2) ES2116586T3 (de)
GB (2) GB9404715D0 (de)
RU (2) RU2127246C1 (de)
TW (1) TW290531B (de)
UA (2) UA35612C2 (de)
WO (2) WO1994021579A1 (de)

Families Citing this family (16)

* 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
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
BE1010626A3 (fr) * 1996-09-16 1998-11-03 Solvay Procede pour la preparation de difluoromethane.
US5800682A (en) * 1996-10-08 1998-09-01 Alliedsignal Inc. Process for the production of difluoromethane
BE1012227A3 (fr) * 1998-10-12 2000-07-04 Solvay Catalyseur et procede d'hydrofluoration.
AU2002317470A1 (en) * 2002-07-10 2004-02-02 Srf Limited A process for the production of difluoromethane
WO2004007410A1 (en) * 2002-07-10 2004-01-22 Srf Limited A process for the production of difluoromethane
KR100512845B1 (ko) * 2002-11-21 2005-09-07 울산화학주식회사 디플르오로메탄의 제조 방법
TW200516068A (en) * 2003-09-10 2005-05-16 Showa Denko Kk Process for production of hydrofluorocarbons, products thereof and use of the products
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
KR101343618B1 (ko) * 2008-09-05 2013-12-19 멕시켐 아만코 홀딩 에스.에이. 데 씨.브이. 불소화 촉매 및 불소화된 탄화수소의 제조방법
EP2766117B1 (de) * 2011-10-12 2018-03-21 Bayer Intellectual Property GmbH Katalytische gasphasenfluorierung von 1,1,2-trichlorethan und/oder 1,2-dichlorethen zur herstellung von 1-chlor-2,2-difluorethan
JP2014221727A (ja) * 2013-05-13 2014-11-27 昭和電工株式会社 ジクロロメタンの精製方法およびそれを用いるジフルオロメタンの製造方法
CN114425275B (zh) * 2020-09-18 2023-08-15 中国石油化工股份有限公司 甲烷氧化偶联反应器及其应用

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744148A (en) * 1952-02-04 1956-05-01 Dow Chemical Co Process for fluorination of haloalkanes using a hydrogen fluoride activated catalyst containing alumina, a metal fluoride and basic aluminum fluoride
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
EP0128510A3 (de) * 1983-06-07 1985-05-15 Showa Denko Kabushiki Kaisha Verfahren zur Herstellung von Difluormethan
GB9104775D0 (en) * 1991-03-07 1991-04-17 Ici Plc Fluorination catalyst and process
US5300710A (en) * 1991-03-20 1994-04-05 E. I. Du Pont De Nemours And Company Process for the manufacture of 2-chloro-1,1,1,2-tetrafluoroethane and pentafluoroethane
US5208395A (en) * 1992-04-06 1993-05-04 Elf Atochem North America, Inc. Manufacture of hydrofluorocarbons
DE69407870T2 (de) * 1993-06-18 1998-08-27 Showa Denko Kk Fluorierungskatalysator und Fluorierungsverfahren
KR960022411A (ko) * 1994-12-28 1996-07-18 남경희 디플루오로메탄의 제조방법

Also Published As

Publication number Publication date
GB9404703D0 (en) 1994-04-27
ES2115940T3 (es) 1998-07-01
GB9404715D0 (en) 1994-04-27
US5763704A (en) 1998-06-09
DE69410455T2 (de) 1998-09-17
KR100323102B1 (ko) 2002-11-07
US5672786A (en) 1997-09-30
AU6213494A (en) 1994-10-11
TW290531B (en) 1996-11-11
EP0690832B1 (de) 1998-05-20
UA40612C2 (uk) 2001-08-15
KR960700982A (ko) 1996-02-24
KR100323101B1 (ko) 2002-11-04
JP3631753B2 (ja) 2005-03-23
EP0690833A1 (de) 1996-01-10
CN1119431A (zh) 1996-03-27
ES2116586T3 (es) 1998-07-16
DE69410455D1 (de) 1998-06-25
CN1044227C (zh) 1999-07-21
RU2116288C1 (ru) 1998-07-27
CA2157878A1 (en) 1994-09-29
UA35612C2 (uk) 2001-04-16
JPH08508028A (ja) 1996-08-27
BR9406236A (pt) 1996-01-09
AU691486B2 (en) 1998-05-21
WO1994021579A1 (en) 1994-09-29
AU691487B2 (en) 1998-05-21
CN1057750C (zh) 2000-10-25
WO1994021580A1 (en) 1994-09-29
EP0690832A1 (de) 1996-01-10
CA2157528C (en) 2005-05-10
RU2127246C1 (ru) 1999-03-10
BR9406201A (pt) 1995-12-12
EP0690833B1 (de) 1998-05-20
AU6213394A (en) 1994-10-11
CA2157528A1 (en) 1994-09-29
CA2157878C (en) 2005-03-01
CN1119432A (zh) 1996-03-27
KR960700983A (ko) 1996-02-24
JPH08508029A (ja) 1996-08-27
DE69410456T2 (de) 1998-09-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: INEOS FLUOR HOLDINGS LTD., SOUTHAMPTON, HAMPSHIRE,

8339 Ceased/non-payment of the annual fee