DE69705767D1 - Verfahren zur Herstellung von Difluormethan - Google Patents
Verfahren zur Herstellung von DifluormethanInfo
- 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
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)
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)
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)
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 |
-
1996
- 1996-04-29 FR FR9605369A patent/FR2748022B1/fr not_active Expired - Fee Related
-
1997
- 1997-04-02 DE DE69705767T patent/DE69705767T2/de not_active Expired - Lifetime
- 1997-04-02 EP EP97400754A patent/EP0805136B1/de not_active Expired - Lifetime
- 1997-04-02 ES ES97400754T patent/ES2160902T3/es not_active Expired - Lifetime
- 1997-04-17 KR KR1019970014248A patent/KR100346285B1/ko not_active IP Right Cessation
- 1997-04-21 TW TW086105128A patent/TW448138B/zh not_active IP Right Cessation
- 1997-04-22 CA CA002203434A patent/CA2203434C/fr not_active Expired - Fee Related
- 1997-04-28 AU AU19133/97A patent/AU1913397A/en not_active Abandoned
- 1997-04-29 CN CN97109754A patent/CN1101366C/zh not_active Expired - Lifetime
- 1997-04-30 JP JP11262397A patent/JP3681503B2/ja not_active Expired - Fee Related
-
2000
- 2000-01-28 US US09/494,125 patent/US6635790B1/en not_active Expired - Lifetime
-
2001
- 2001-09-20 GR GR20010401537T patent/GR3036680T3/el not_active IP Right Cessation
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 |