DE69626834T2 - Verfahren zur herstellung von difluoromethan - Google Patents

Verfahren zur herstellung von difluoromethan

Info

Publication number
DE69626834T2
DE69626834T2 DE69626834T DE69626834T DE69626834T2 DE 69626834 T2 DE69626834 T2 DE 69626834T2 DE 69626834 T DE69626834 T DE 69626834T DE 69626834 T DE69626834 T DE 69626834T DE 69626834 T2 DE69626834 T2 DE 69626834T2
Authority
DE
Germany
Prior art keywords
difluoromethane
producing difluoromethane
hfc
provides
producing
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.)
Revoked
Application number
DE69626834T
Other languages
English (en)
Other versions
DE69626834D1 (de
Inventor
Gene Clemmer
Miles Smith
Sung Tung
Stephen Bass
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.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
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=24114432&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69626834(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Honeywell International Inc filed Critical Honeywell International Inc
Application granted granted Critical
Publication of DE69626834D1 publication Critical patent/DE69626834D1/de
Publication of DE69626834T2 publication Critical patent/DE69626834T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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)
DE69626834T 1995-09-20 1996-09-13 Verfahren zur herstellung von difluoromethan Revoked DE69626834T2 (de)

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 (2)

Publication Number Publication Date
DE69626834D1 DE69626834D1 (de) 2003-04-24
DE69626834T2 true DE69626834T2 (de) 2003-12-18

Family

ID=24114432

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69626834T Revoked DE69626834T2 (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)

* Cited by examiner, † Cited by third party
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 Ind Ltd Verfahren zur herstellung von difluormethan
EP1042256A1 (de) * 1997-11-18 2000-10-11 AlliedSignal Inc. Verfahren zur herstellung von difluormethan
JP2001524459A (ja) * 1997-11-21 2001-12-04 アライドシグナル・インコーポレイテッド ハイドロフルオロカーボンの製造方法
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
WO2002026672A2 (en) * 2000-09-28 2002-04-04 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
CN100372821C (zh) * 2002-07-10 2008-03-05 Srf有限公司 二氟甲烷的制备方法
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
WO2011094363A2 (en) 2010-01-26 2011-08-04 The Regents Of The University Of Colorado 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)

* Cited by examiner, † Cited by third party
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
KR100295306B1 (ko) * 1992-04-13 2001-09-17 이노우에 노리유끼 플루오르화수소의제거방법
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

Also Published As

Publication number Publication date
TW388751B (en) 2000-05-01
CA2232596C (en) 2008-04-15
EA199800302A1 (ru) 1998-10-29
HUP9901285A3 (en) 2000-02-28
US6365580B1 (en) 2002-04-02
AU702786B2 (en) 1999-03-04
IS4670A (is) 1998-02-17
CA2232596A1 (en) 1997-03-27
DE69626834D1 (de) 2003-04-24
ES2193261T3 (es) 2003-11-01
PT854848E (pt) 2003-07-31
HUP9901285A2 (hu) 1999-07-28
BR9610669A (pt) 1999-07-13
KR19990063633A (ko) 1999-07-26
ATE234797T1 (de) 2003-04-15
US5763708A (en) 1998-06-09
PL325554A1 (en) 1998-08-03
US20050004408A1 (en) 2005-01-06
CN1201446A (zh) 1998-12-09
EP0854848B1 (de) 2003-03-19
AU6977596A (en) 1997-04-09
EP0854848A1 (de) 1998-07-29
IL123351A0 (en) 1998-09-24
JPH11512454A (ja) 1999-10-26
WO1997011043A1 (en) 1997-03-27
TR199800505T1 (xx) 1998-06-22
MX9801855A (es) 1998-05-31
US6844474B1 (en) 2005-01-18

Similar Documents

Publication Publication Date Title
DE69626834D1 (de) Verfahren zur herstellung von difluoromethan
ATE149196T1 (de) Verfahren zur herstellung von olefinen
DE58903808D1 (de) Verfahren zur herstellung von 3,5-dimethyl-4-methoxypyridinderivaten sowie neues zwischenprodukt hierfuer.
DE3884254T2 (de) Verfahren zur kontinuierlichen Herstellung von Octa-2,7-dien-1-ol.
DE69513847D1 (de) Verfahren zur herstellung von substituierten 3-aminobenzonitrilen
ATE117994T1 (de) Verfahren zur herstellung von 2-chlor-5- chlormethylpyridin.
DK0737210T4 (da) Fremgangsmåde til fremstilling af kationisk stivelse
DE69603631T2 (de) Verfahren zur Herstellung von kleinen, diskreten sphärischen Magnesiumdihalogenid/Alkohol Addukten
DE60015563D1 (de) Verfahren zur herstellung von benzoperhydroisoindolen
ATE355262T1 (de) Verfahren zur herstellung von 2-vinylcyclodecanon
ATE272061T1 (de) Friedel-craft verfahren zur herstellung von thioxanthonen
DE58908648D1 (de) Verfahren zur Herstellung von AOX-armer, chlorfreier Salzsäure.
DE69623273D1 (de) Verfahren zur herstellung von tetrabrombisphenol-a
DE69926223D1 (de) Verfahren zur herstellung von zwischenprodukten
ATE214046T1 (de) Verfahren zur herstellung von zwischenprodukten, die für die herstellung von retroviral-protease hemmenden verbindungen verwendbar sind
ATE272038T1 (de) Verfahren zur herstellung von 2-alkyl-3- chlorphenolen
DE60010237D1 (de) Verbessertes verfahren zur herstellung von hexabromcyclododecan
ATE161540T1 (de) Neues verfahren zur herstellung von 2-fluorpurin- derivaten
ATE425143T1 (de) Verfahren zur herstellung von indolen
DE59603777D1 (de) Verfahren zur Herstellung von 1-Brom-3,5-difluorbenzol
DE50312447D1 (de) Verfahren zur herstellung von 4,6-dichlor-5-fluorpyrimidin
ATE314336T1 (de) Verfahren zur herstellung von 4-chlorbiphenyl
ATE166351T1 (de) Verfahren zur herstellung von thiopyranen
ATE215071T1 (de) Verfahren zur herstellung von prostaglandin e1
DE69110555T2 (de) Verfahren zur Herstellung von konjugierten Dienen.

Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation