ES2071432T5 - Produccion de difluormetano. - Google Patents
Produccion de difluormetano.Info
- Publication number
- ES2071432T5 ES2071432T5 ES92302785T ES92302785T ES2071432T5 ES 2071432 T5 ES2071432 T5 ES 2071432T5 ES 92302785 T ES92302785 T ES 92302785T ES 92302785 T ES92302785 T ES 92302785T ES 2071432 T5 ES2071432 T5 ES 2071432T5
- 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
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
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.
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 ES2071432T3 (es) | 1995-06-16 |
ES2071432T5 true 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0669304B1 (en) * | 1992-11-11 | 1998-04-29 | Daikin Industries, Limited | Process for producing difluoromethane |
US5817896A (en) * | 1993-03-26 | 1998-10-06 | The University Court Of The University Of Dundee | Catalytic method of replacing halogen in halocarbons |
GB9306334D0 (en) * | 1993-03-26 | 1993-05-19 | Univ Dundee | Catalyst |
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 |
CN101801906A (zh) | 2007-08-16 | 2010-08-11 | 索尔维公司 | 制备4-氟取代的3-氧代-烷酸酯的方法 |
WO2012000853A1 (en) * | 2010-07-01 | 2012-01-05 | Solvay Solexis S.P.A. | Process for the synthesis of trifluoroethylene |
KR101287974B1 (ko) * | 2011-07-07 | 2013-07-23 | 한국과학기술연구원 | 클로로디플루오로메탄으로부터 수첨탈염소반응을 통한 고수율의 디플루오로메탄의 제조방법 |
EP3241878B2 (en) * | 2014-09-25 | 2023-12-20 | Daikin Industries, Ltd. | Composition comprising hfc and hfo |
Family Cites Families (5)
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 |
EP0347830B1 (en) * | 1988-06-21 | 1994-01-26 | Asahi Glass Company Ltd. | 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 |
-
1991
- 1991-04-11 GB GB919107677A patent/GB9107677D0/en active Pending
-
1992
- 1992-03-30 EP EP92302785A patent/EP0508660B2/en not_active Expired - Lifetime
- 1992-03-30 ES ES92302785T patent/ES2071432T5/es not_active Expired - Lifetime
- 1992-03-30 AT AT92302785T patent/ATE121716T1/de not_active IP Right Cessation
- 1992-03-30 DK DK92302785T patent/DK0508660T4/da active
- 1992-03-30 GB GB929206872A patent/GB9206872D0/en active Pending
- 1992-03-30 DE DE69202192T patent/DE69202192T3/de not_active Expired - Fee Related
- 1992-04-03 CA CA002065108A patent/CA2065108A1/en not_active Abandoned
- 1992-04-09 JP JP4088797A patent/JPH05279275A/ja active Pending
-
1994
- 1994-12-09 US US08/352,448 patent/US5877360A/en not_active Expired - Fee Related
-
1995
- 1995-04-27 GR GR940403841T patent/GR3015933T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
GR3015933T3 (en) | 1995-07-31 |
DE69202192T2 (de) | 1995-08-31 |
EP0508660A1 (en) | 1992-10-14 |
JPH05279275A (ja) | 1993-10-26 |
GB9206872D0 (en) | 1992-05-13 |
ATE121716T1 (de) | 1995-05-15 |
US5877360A (en) | 1999-03-02 |
EP0508660B2 (en) | 1998-09-23 |
DK0508660T3 (da) | 1995-07-10 |
CA2065108A1 (en) | 1992-10-12 |
DE69202192T3 (de) | 1999-04-29 |
DK0508660T4 (da) | 1999-06-14 |
GB9107677D0 (en) | 1991-05-29 |
EP0508660B1 (en) | 1995-04-26 |
ES2071432T3 (es) | 1995-06-16 |
DE69202192D1 (de) | 1995-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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