ES2071432T3 - Produccion de difluormetano. - Google Patents

Produccion de difluormetano.

Info

Publication number
ES2071432T3
ES2071432T3 ES92302785T ES92302785T ES2071432T3 ES 2071432 T3 ES2071432 T3 ES 2071432T3 ES 92302785 T ES92302785 T ES 92302785T ES 92302785 T ES92302785 T ES 92302785T ES 2071432 T3 ES2071432 T3 ES 2071432T3
Authority
ES
Spain
Prior art keywords
production
difluormethane
hydrogen
catalyst
xycf2
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
ES92302785T
Other languages
English (en)
Other versions
ES2071432T5 (es
Inventor
Geoffrey James Moore
Jenny O'kell
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=10693066&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2071432(T3) "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
Publication of ES2071432T3 publication Critical patent/ES2071432T3/es
Application granted granted Critical
Publication of ES2071432T5 publication Critical patent/ES2071432T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/389—Separation; Purification; Stabilisation; Use of additives by adsorption on solids
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PRODUCCION DE DIFLUOROMETANO. SE PRESENTA UN PROCESO PARA LA PRODUCCION DE DIFLUOROMETANO QUE COMPRENDE LA REACCION DE UN COMPUESTO DE LA FORMULA XYCF2 EN LA QUE X E Y SON CADA UNA H, CL O BR PERO AL MENOS UNA DE ENTRE X E Y ES UN ATOMO DIFERENTE AL HIDROGENO, Y EN PARTICULAR CLORODIFLUOROMETANO, CON HIDROGENO A TEMPERATURA ELEVADA EN LA PRESENCIA DE UN CATALIZADOR DE HIDROGENACION, EN PARTICULAR UN CATALIZADOR QUE COMPRENDA PALADIO SOPORTADO SOBRE UN SOPORTE DE CARBONO ACTIVO.
ES92302785T 1991-04-11 1992-03-30 Produccion de difluormetano. Expired - Lifetime ES2071432T5 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919107677A GB9107677D0 (en) 1991-04-11 1991-04-11 Chemical process

Publications (2)

Publication Number Publication Date
ES2071432T3 true ES2071432T3 (es) 1995-06-16
ES2071432T5 ES2071432T5 (es) 1998-11-16

Family

ID=10693066

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92302785T Expired - Lifetime ES2071432T5 (es) 1991-04-11 1992-03-30 Produccion de difluormetano.

Country Status (10)

Country Link
US (1) US5877360A (es)
EP (1) EP0508660B2 (es)
JP (1) JPH05279275A (es)
AT (1) ATE121716T1 (es)
CA (1) CA2065108A1 (es)
DE (1) DE69202192T3 (es)
DK (1) DK0508660T4 (es)
ES (1) ES2071432T5 (es)
GB (2) GB9107677D0 (es)
GR (1) GR3015933T3 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011328A1 (fr) * 1992-11-11 1994-05-26 Daikin Industries, Ltd. Procede pour la production de difluoromethane
GB9306334D0 (en) * 1993-03-26 1993-05-19 Univ Dundee Catalyst
US5817896A (en) * 1993-03-26 1998-10-06 The University Court Of The University Of Dundee Catalytic method of replacing halogen in halocarbons
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
BE1007822A5 (fr) * 1993-12-10 1995-10-31 Solvay Support pour un catalyseur d'hydrogenation, systeme catalytique comprenant ce support et procede d'hydrodechloration d'hydrocarbures chlorofluores.
WO1995024369A1 (en) * 1994-03-11 1995-09-14 E.I. Du Pont De Nemours And Company Process for converting chlorodifluoromethane and/or dichlorodifluoromethane
NL9401574A (nl) * 1994-09-27 1996-05-01 Univ Delft Tech Difluormethaanbereiding.
FR2730729B1 (fr) * 1995-02-17 1997-04-30 Atochem Elf Sa Procede de coproduction de difluoromethane et de 1,1,1,2-tetrafluoroethane
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
GB9600430D0 (en) * 1996-01-10 1996-03-13 Ici Plc Hydrogenation catalyst and process
US6624109B2 (en) 2001-10-23 2003-09-23 Council Of Scientific And Industrial Research Process for the synthesis of highly active modified carbon supported palladium catalyst
EP1308206A1 (en) * 2001-10-29 2003-05-07 Council of Scientific and Industrial Research Process for the synthesis of an aluminium modified carbon supported palladium catalyst
US6706658B2 (en) 2001-12-21 2004-03-16 Engelhard Corporation Catalyst for purification of aromatic acids
US7026521B1 (en) 2005-03-28 2006-04-11 Honeywell International Inc. Methane and methyl chloride as selective reducing agent in the transformation of hydrochlorofluorocarbons or chlorofluorocarbons to hydrofluorocarbons
JP5340287B2 (ja) 2007-08-16 2013-11-13 ソルヴェイ（ソシエテ アノニム） ４−フルオロ置換３−オキソ−アルカン酸のエステル類の調製方法
CN102971278B (zh) * 2010-07-01 2014-12-17 索尔维特殊聚合物意大利有限公司 用于合成三氟乙烯的方法
KR101287974B1 (ko) * 2011-07-07 2013-07-23 한국과학기술연구원 클로로디플루오로메탄으로부터 수첨탈염소반응을 통한 고수율의 디플루오로메탄의 제조방법
PL3239269T3 (pl) * 2014-09-25 2020-12-14 Daikin Industries, Ltd. Kompozycja zawierająca HFC i HFO

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA670338A (en) * 1963-09-10 Olstowski Franciszek Preparation of fluoroform
DE1206424B (de) * 1964-05-27 1965-12-09 Hoechst Ag Verfahren zum Abtrennen von Difluormethan aus Gemischen von Difluormethan und Tetrafluoraethylen
CA1337434C (en) * 1988-06-21 1995-10-24 Shunichi Samejima Process for producing 1,1,1,2-tetrafluoroethane
GB8828544D0 (en) * 1988-12-07 1989-01-11 Ici Plc Chemical process
AU633295B2 (en) * 1989-02-03 1993-01-28 E.I. Du Pont De Nemours And Company Improved hydrogenolysis/dehydrohalogenation process

Also Published As

Publication number Publication date
EP0508660B1 (en) 1995-04-26
US5877360A (en) 1999-03-02
EP0508660B2 (en) 1998-09-23
DK0508660T3 (da) 1995-07-10
EP0508660A1 (en) 1992-10-14
GR3015933T3 (en) 1995-07-31
ATE121716T1 (de) 1995-05-15
DK0508660T4 (da) 1999-06-14
GB9206872D0 (en) 1992-05-13
DE69202192T2 (de) 1995-08-31
GB9107677D0 (en) 1991-05-29
DE69202192T3 (de) 1999-04-29
DE69202192D1 (de) 1995-06-01
CA2065108A1 (en) 1992-10-12
JPH05279275A (ja) 1993-10-26
ES2071432T5 (es) 1998-11-16

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