ATE234797T1 - Verfahren zur herstellung von difluoromethan - Google Patents
Verfahren zur herstellung von difluoromethanInfo
- Publication number
- ATE234797T1 ATE234797T1 AT96930874T AT96930874T ATE234797T1 AT E234797 T1 ATE234797 T1 AT E234797T1 AT 96930874 T AT96930874 T AT 96930874T AT 96930874 T AT96930874 T AT 96930874T AT E234797 T1 ATE234797 T1 AT E234797T1
- Authority
- AT
- Austria
- Prior art keywords
- difluoromethane
- producing difluoromethane
- hfc
- provides
- producing
- Prior art date
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/530,649 US5763708A (en) | 1995-09-20 | 1995-09-20 | Process for the production of difluoromethane |
PCT/US1996/014734 WO1997011043A1 (en) | 1995-09-20 | 1996-09-13 | Process for the production of difluoromethane |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE234797T1 true ATE234797T1 (de) | 2003-04-15 |
Family
ID=24114432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT96930874T ATE234797T1 (de) | 1995-09-20 | 1996-09-13 | Verfahren zur herstellung von difluoromethan |
Country Status (21)
Country | Link |
---|---|
US (4) | US5763708A (de) |
EP (1) | EP0854848B1 (de) |
JP (1) | JPH11512454A (de) |
KR (1) | KR19990063633A (de) |
CN (1) | CN1201446A (de) |
AT (1) | ATE234797T1 (de) |
AU (1) | AU702786B2 (de) |
BR (1) | BR9610669A (de) |
CA (1) | CA2232596C (de) |
DE (1) | DE69626834T2 (de) |
EA (1) | EA199800302A1 (de) |
ES (1) | ES2193261T3 (de) |
HU (1) | HUP9901285A3 (de) |
IL (1) | IL123351A0 (de) |
IS (1) | IS4670A (de) |
MX (1) | MX9801855A (de) |
PL (1) | PL325554A1 (de) |
PT (1) | PT854848E (de) |
TR (1) | TR199800505T1 (de) |
TW (1) | TW388751B (de) |
WO (1) | WO1997011043A1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2736048B1 (fr) * | 1995-06-27 | 1997-08-01 | Atochem Elf Sa | Synthese du difluoromethane |
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 |
FR2746674B1 (fr) * | 1996-03-29 | 1998-04-24 | Atochem Elf Sa | Regeneration des catalyseurs de fluoration en phase gazeuse |
FR2748022B1 (fr) * | 1996-04-29 | 1998-07-24 | Atochem Elf Sa | Procede de fabrication du difluoromethane |
DE69708127T2 (de) * | 1996-08-27 | 2002-06-20 | Daikin Industries, Ltd. | Verfahren zur herstellung von difluormethan |
WO1999025670A1 (en) * | 1997-11-18 | 1999-05-27 | Alliedsignal Inc. | Process for the preparation of difluoromethane |
BR9815103A (pt) * | 1997-11-21 | 2001-08-21 | Allied Signal Inc | Processo para a produção de hidrofluorcarbonos |
US6235265B1 (en) * | 1998-10-28 | 2001-05-22 | Alliedsignal Inc. | Evaporative coolant for topical anesthesia comprising hydrofluorocarbons and/or hydrochlorofluorocarbons |
US6080899A (en) * | 1999-01-25 | 2000-06-27 | Alliedsignal Inc. | Method of producing fluorinated organic compounds |
AU2001292985A1 (en) * | 2000-09-28 | 2002-04-08 | Honeywell International, Inc. | Fluorination process |
US7189311B2 (en) * | 2001-03-23 | 2007-03-13 | Honeywell International Inc. | Purification of difluoromethane |
US6605193B2 (en) * | 2001-04-25 | 2003-08-12 | Atofina Chemicals, Inc. | Recovery of HFC-32 |
US6551469B1 (en) * | 2001-11-27 | 2003-04-22 | Honeywell International | Photochlorination of 1,1,1,3,3-pentafluoropropane |
DE60231010D1 (de) * | 2002-07-10 | 2009-03-12 | Srf Ltd | Verfahren zur herstellung von difluormethan |
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 |
US7214839B2 (en) * | 2003-05-23 | 2007-05-08 | Honeywell International Inc. | Method of making hydrofluorocarbons |
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 |
CN1313423C (zh) * | 2005-01-27 | 2007-05-02 | 鹰鹏化工有限公司 | 分段连续氟化制备二氟甲烷的方法 |
CA2825952A1 (en) | 2010-01-26 | 2011-08-04 | Robert S. Hodges | Influenza virus compositions and methods for universal vaccines |
US8901360B2 (en) | 2010-05-21 | 2014-12-02 | Honeywell International Inc. | Process for cis 1,1,1,4,4,4-hexafluoro-2-butene |
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 |
CN106554247A (zh) * | 2016-06-29 | 2017-04-05 | 宁夏海诚电化信息科技有限公司 | 一种制冷剂r32生产工艺 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2005707A (en) * | 1932-08-31 | 1935-06-18 | Kinetic Chemicals Inc | Production of organic fluorine compounds |
US2748177A (en) * | 1951-08-03 | 1956-05-29 | Allied Chem & Dye Corp | Fluorination |
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 |
US3313692A (en) * | 1958-04-21 | 1967-04-11 | Armour Pharma | Method of inducing calming and muscle relaxation with carbamates |
US3258500A (en) * | 1959-08-17 | 1966-06-28 | Du Pont | Process for fluorinating halohydro-carbons |
US3265728A (en) * | 1962-07-18 | 1966-08-09 | Armour Pharma | Substituted phenethyl carbamates |
BE766395A (fr) * | 1971-04-28 | 1971-10-28 | Solvay | Procede de fabrication du 1,1-difluorethane, |
US4147733A (en) * | 1978-05-22 | 1979-04-03 | The Dow Chemical Company | Fluorination of chlorinated hydrocarbons |
JPS59225131A (ja) * | 1983-06-06 | 1984-12-18 | Showa Denko Kk | ジフルオロメタンの製造方法 |
EP0128510A3 (de) * | 1983-06-07 | 1985-05-15 | Showa Denko Kabushiki Kaisha | Verfahren zur Herstellung von Difluormethan |
GB9107677D0 (en) * | 1991-04-11 | 1991-05-29 | Ici Plc | Chemical process |
US5208395A (en) * | 1992-04-06 | 1993-05-04 | Elf Atochem North America, Inc. | Manufacture of hydrofluorocarbons |
KR100352680B1 (ko) * | 1992-04-13 | 2002-09-16 | 다이낑 고오교 가부시키가이샤 | 플루오르화수소의 제거 방법 |
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 |
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 |
US5763708A (en) * | 1995-09-20 | 1998-06-09 | Allied Signal Inc. | Process for the production of difluoromethane |
US5698588A (en) * | 1996-01-16 | 1997-12-16 | Yukong Limited | Halogen substituted carbamate compounds from 2-phenyl-1,2-ethanediol |
-
1995
- 1995-09-20 US US08/530,649 patent/US5763708A/en not_active Expired - Lifetime
-
1996
- 1996-09-13 PT PT96930874T patent/PT854848E/pt unknown
- 1996-09-13 EA EA199800302A patent/EA199800302A1/ru unknown
- 1996-09-13 WO PCT/US1996/014734 patent/WO1997011043A1/en not_active Application Discontinuation
- 1996-09-13 DE DE69626834T patent/DE69626834T2/de not_active Revoked
- 1996-09-13 CN CN96198176A patent/CN1201446A/zh active Pending
- 1996-09-13 EP EP96930874A patent/EP0854848B1/de not_active Revoked
- 1996-09-13 MX MX9801855A patent/MX9801855A/es unknown
- 1996-09-13 CA CA002232596A patent/CA2232596C/en not_active Expired - Fee Related
- 1996-09-13 ES ES96930874T patent/ES2193261T3/es not_active Expired - Lifetime
- 1996-09-13 JP JP9512794A patent/JPH11512454A/ja active Pending
- 1996-09-13 TR TR1998/00505T patent/TR199800505T1/xx unknown
- 1996-09-13 AT AT96930874T patent/ATE234797T1/de not_active IP Right Cessation
- 1996-09-13 BR BR9610669A patent/BR9610669A/pt not_active Application Discontinuation
- 1996-09-13 IL IL12335196A patent/IL123351A0/xx unknown
- 1996-09-13 HU HU9901285A patent/HUP9901285A3/hu unknown
- 1996-09-13 PL PL96325554A patent/PL325554A1/xx unknown
- 1996-09-13 KR KR1019980702082A patent/KR19990063633A/ko active Search and Examination
- 1996-09-13 AU AU69775/96A patent/AU702786B2/en not_active Ceased
- 1996-09-17 TW TW085111366A patent/TW388751B/zh not_active IP Right Cessation
-
1997
- 1997-10-28 US US08/959,748 patent/US6844474B1/en not_active Expired - Fee Related
-
1998
- 1998-02-17 IS IS4670A patent/IS4670A/is unknown
-
1999
- 1999-10-21 US US09/425,150 patent/US6365580B1/en not_active Expired - Lifetime
-
2004
- 2004-07-23 US US10/896,905 patent/US20050004408A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
HUP9901285A2 (hu) | 1999-07-28 |
CA2232596A1 (en) | 1997-03-27 |
AU702786B2 (en) | 1999-03-04 |
TR199800505T1 (xx) | 1998-06-22 |
BR9610669A (pt) | 1999-07-13 |
EA199800302A1 (ru) | 1998-10-29 |
US5763708A (en) | 1998-06-09 |
HUP9901285A3 (en) | 2000-02-28 |
IS4670A (is) | 1998-02-17 |
IL123351A0 (en) | 1998-09-24 |
US6844474B1 (en) | 2005-01-18 |
CA2232596C (en) | 2008-04-15 |
EP0854848B1 (de) | 2003-03-19 |
KR19990063633A (ko) | 1999-07-26 |
MX9801855A (es) | 1998-05-31 |
EP0854848A1 (de) | 1998-07-29 |
US6365580B1 (en) | 2002-04-02 |
PL325554A1 (en) | 1998-08-03 |
TW388751B (en) | 2000-05-01 |
DE69626834D1 (de) | 2003-04-24 |
AU6977596A (en) | 1997-04-09 |
PT854848E (pt) | 2003-07-31 |
DE69626834T2 (de) | 2003-12-18 |
JPH11512454A (ja) | 1999-10-26 |
WO1997011043A1 (en) | 1997-03-27 |
US20050004408A1 (en) | 2005-01-06 |
CN1201446A (zh) | 1998-12-09 |
ES2193261T3 (es) | 2003-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |