IL123351A0 - Process for the production of difluoromethane - Google Patents

Process for the production of difluoromethane

Info

Publication number
IL123351A0
IL123351A0 IL12335196A IL12335196A IL123351A0 IL 123351 A0 IL123351 A0 IL 123351A0 IL 12335196 A IL12335196 A IL 12335196A IL 12335196 A IL12335196 A IL 12335196A IL 123351 A0 IL123351 A0 IL 123351A0
Authority
IL
Israel
Prior art keywords
difluoromethane
production
hfc
provides
selectivity
Prior art date
Application number
IL12335196A
Other languages
English (en)
Original Assignee
Allied Signal 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=IL123351(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Allied Signal Inc filed Critical Allied Signal Inc
Publication of IL123351A0 publication Critical patent/IL123351A0/xx

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)
IL12335196A 1995-09-20 1996-09-13 Process for the production of difluoromethane IL123351A0 (en)

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
IL123351A0 true IL123351A0 (en) 1998-09-24

Family

ID=24114432

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12335196A IL123351A0 (en) 1995-09-20 1996-09-13 Process for the production of difluoromethane

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
CN1122006C (zh) * 1996-08-27 2003-09-24 大金工业株式会社 二氟甲烷的制造方法
NZ504616A (en) * 1997-11-18 2002-02-01 Allied Signal Inc Process for the preparation of difluoromethane
CA2311547A1 (en) * 1997-11-21 1999-06-03 John Stephen Bass Method of producing hydrofluorocarbons
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
WO2004007410A1 (en) * 2002-07-10 2004-01-22 Srf Limited A process for the production of difluoromethane
DE60231010D1 (de) * 2002-07-10 2009-03-12 Srf Ltd Verfahren zur herstellung von difluormethan
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
CN102939101A (zh) 2010-01-26 2013-02-20 科罗拉多大学董事会，法人 用于通用疫苗的流感病毒组合物和方法
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
BR9305484A (pt) * 1992-04-13 1995-04-11 Daikin Ind Ltd Processo para remoção de fluoreto de hidrogênio.
JPH06263657A (ja) * 1993-03-11 1994-09-20 Showa Denko Kk ジフルオロメタンの製造法
GB9404715D0 (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
CA2232596C (en) 2008-04-15
EA199800302A1 (ru) 1998-10-29
DE69626834D1 (de) 2003-04-24
ES2193261T3 (es) 2003-11-01
PL325554A1 (en) 1998-08-03
ATE234797T1 (de) 2003-04-15
JPH11512454A (ja) 1999-10-26
DE69626834T2 (de) 2003-12-18
MX9801855A (es) 1998-05-31
AU702786B2 (en) 1999-03-04
IS4670A (is) 1998-02-17
WO1997011043A1 (en) 1997-03-27
AU6977596A (en) 1997-04-09
EP0854848B1 (de) 2003-03-19
CA2232596A1 (en) 1997-03-27
US6365580B1 (en) 2002-04-02
US6844474B1 (en) 2005-01-18
US20050004408A1 (en) 2005-01-06
TW388751B (en) 2000-05-01
US5763708A (en) 1998-06-09
PT854848E (pt) 2003-07-31
HUP9901285A2 (hu) 1999-07-28
HUP9901285A3 (en) 2000-02-28
TR199800505T1 (xx) 1998-06-22
EP0854848A1 (de) 1998-07-29
BR9610669A (pt) 1999-07-13
CN1201446A (zh) 1998-12-09
KR19990063633A (ko) 1999-07-26

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