ATE189673T1 - Verfahren zur herstellung von difluormethan - Google Patents

Verfahren zur herstellung von difluormethan

Info

Publication number
ATE189673T1
ATE189673T1 AT95921110T AT95921110T ATE189673T1 AT E189673 T1 ATE189673 T1 AT E189673T1 AT 95921110 T AT95921110 T AT 95921110T AT 95921110 T AT95921110 T AT 95921110T AT E189673 T1 ATE189673 T1 AT E189673T1
Authority
AT
Austria
Prior art keywords
reaction
difluoromethane
under
temperature
hydrogen fluoride
Prior art date
Application number
AT95921110T
Other languages
English (en)
Inventor
Takehide Tsuda
Yasufu Yamada
Takashi Shibanuma
Original Assignee
Daikin Ind Ltd
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
Application filed by Daikin Ind Ltd filed Critical Daikin Ind Ltd
Application granted granted Critical
Publication of ATE189673T1 publication Critical patent/ATE189673T1/de

Links

Classifications

    • 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
    • C07C17/21—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms with simultaneous increase of the number of halogen atoms
    • 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
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • 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
    • 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)
AT95921110T 1994-06-20 1995-06-07 Verfahren zur herstellung von difluormethan ATE189673T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13727594 1994-06-20
PCT/JP1995/001122 WO1995035271A1 (en) 1994-06-20 1995-06-07 Process for producing difluoromethane

Publications (1)

Publication Number Publication Date
ATE189673T1 true ATE189673T1 (de) 2000-02-15

Family

ID=15194873

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95921110T ATE189673T1 (de) 1994-06-20 1995-06-07 Verfahren zur herstellung von difluormethan

Country Status (12)

Country Link
US (1) US5744659A (de)
EP (1) EP0767158B1 (de)
JP (1) JP3240619B2 (de)
KR (1) KR100344863B1 (de)
CN (1) CN1090160C (de)
AT (1) ATE189673T1 (de)
AU (1) AU697434B2 (de)
BR (1) BR9508062A (de)
CA (1) CA2193634C (de)
DE (1) DE69515036T2 (de)
ES (1) ES2143634T3 (de)
WO (1) WO1995035271A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9607743A (pt) * 1995-02-10 1998-06-23 Daikin Ind Ltd Processo para produçao de diflúor metano e diflúor cloro metano
US6268540B1 (en) 1996-06-24 2001-07-31 Alliedsignal Inc. Catalyst and process for the fluorination of hydrohalomethanes
BE1010626A3 (fr) * 1996-09-16 1998-11-03 Solvay Procede pour la preparation de difluoromethane.
JP3367861B2 (ja) 1997-04-15 2003-01-20 セントラル硝子株式会社 ３，３−ジクロロ−１，１，１−トリフルオロアセトンの製造方法
AU733972B2 (en) * 1997-07-25 2001-05-31 Honeywell International, Inc. Cleaning vapor compression systems
BR9814979A (pt) * 1997-11-18 2001-11-20 Allied Signal Inc Processo para a preparação de difluormetano
EP1034156A2 (de) * 1997-11-21 2000-09-13 AlliedSignal Inc. Verfahren zur herstellung von fluorkohlenwasserstoffen
WO1999036378A1 (en) * 1998-01-16 1999-07-22 Alliedsignal Inc. Method of producing fluorinated organic compounds
US6153802A (en) * 1998-05-08 2000-11-28 Alliedsignal Inc. Liquid-fluorination system and method
ES2334490T3 (es) 2000-02-02 2010-03-11 Daikin Industries, Ltd. Proceso para producir un hidrocarburo fluorado.
CN100448821C (zh) * 2001-12-21 2009-01-07 帕布服务公司 生产十溴二苯基烷烃的方法与装置
CA2573147C (en) * 2004-07-06 2013-03-26 Kenet, Inc. Voltage random access memory (vram)
US20060036117A1 (en) * 2004-08-10 2006-02-16 Mitchel Cohn Catalyst preparation processes, catalyst regeneration processes, halocarbon production processes, and halocarbon production systems
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
FR2994430B1 (fr) * 2012-08-10 2014-12-19 Arkema France Procede de production du difluoromethane
CN105001039A (zh) * 2015-06-02 2015-10-28 江苏三美化工有限公司 一种提高r32反应釜使用寿命的方法
CN104909981A (zh) * 2015-06-02 2015-09-16 江苏三美化工有限公司 一种提高二氟甲烷生产过程中反应选择性的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749375A (en) * 1956-06-05 Fluorination
US2005711A (en) * 1931-05-20 1935-06-18 Kinetic Chemicals Inc Preparation of organic fluorine compounds
US2749374A (en) * 1950-02-24 1956-06-05 Dow Chemical Co Production of methylene fluoride
JPS52103392A (en) * 1976-02-26 1977-08-30 Daikin Ind Ltd Fluorination catalyst for haloganated hydrocarbon
US4138355A (en) * 1976-08-10 1979-02-06 Halocarbon Products Corporation Fluorine substitution in 1,1,1-trihalomethanes
US5208395A (en) * 1992-04-06 1993-05-04 Elf Atochem North America, Inc. Manufacture of hydrofluorocarbons
JPH0717882A (ja) * 1993-07-05 1995-01-20 Daikin Ind Ltd ジフルオロメタンの製造方法
KR960022411A (ko) * 1994-12-28 1996-07-18 남경희 디플루오로메탄의 제조방법

Also Published As

Publication number Publication date
AU2629195A (en) 1996-01-15
CA2193634A1 (en) 1995-12-28
EP0767158A1 (de) 1997-04-09
CA2193634C (en) 2006-08-29
US5744659A (en) 1998-04-28
WO1995035271A1 (en) 1995-12-28
DE69515036D1 (de) 2000-03-16
CN1090160C (zh) 2002-09-04
DE69515036T2 (de) 2000-07-13
AU697434B2 (en) 1998-10-08
EP0767158B1 (de) 2000-02-09
JP3240619B2 (ja) 2001-12-17
KR100344863B1 (ko) 2002-09-18
CN1168660A (zh) 1997-12-24
BR9508062A (pt) 1997-08-12
ES2143634T3 (es) 2000-05-16
EP0767158A4 (de) 1997-07-30

Similar Documents

Publication Publication Date Title
ATE189673T1 (de) Verfahren zur herstellung von difluormethan
US6013846A (en) Azeotrope of HF and 1233zd
US4523040A (en) Methyl halides and methyl alcohol from methane
EP0877009A4 (de) Verfahren zur herstellung von 1,1,1,3,3,-pentafluoropropanen
IT1184149B (it) Processo per la preparazione di fluorossi-alo-composti
DE69324377D1 (de) Verfahren zur herstellung von 1,1,1,3,3-pentafluoropropan
KR960022411A (ko) 디플루오로메탄의 제조방법
DE69324264D1 (de) Verfahren zur herstellung von 1,1,2,2,3-pentafluoropropan
DE69519026D1 (de) Verfahren zur herstellung von difluoromethan
JPWO1996001241A1 (ja) ジフルオロメタンの製造方法
AU680706B2 (en) Process for producing difluoromethane and 1,1,1,2-tetrafluoroethane
WO2000043338A3 (en) Method of producing fluorinated organic compounds
KR960017600A (ko) 하이드로클로로플루오로카본의 단열적 하이드로플루오르화 방법
WO1994006742A1 (en) Process for preparing perhaloacyl chlorides
JP3475325B2 (ja) ジメチルスルフィドの製法
ATE241580T1 (de) Kontinuierliches verfahren zur herstellung von propargylchlorid
US6118028A (en) Method of making trifluoromethoxybenzenes
EP0079592A3 (de) Stabilisierung von Katalysatoren
EP0137424A3 (de) Verfahren zur Herstellung von 2,4-Dichlorobenzofluorid
RO90172B (ro) Procedeu pentru prepararea perclormetilmercaptanului
FI982810L (fi) Menetelmä 3-asetoksi-2-metyylibentsoyylikloridin valmistamiseksi

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties