KR960022411A - 디플루오로메탄의 제조방법 - Google Patents

디플루오로메탄의 제조방법 Download PDF

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Publication number
KR960022411A
KR960022411A KR1019940038154A KR19940038154A KR960022411A KR 960022411 A KR960022411 A KR 960022411A KR 1019940038154 A KR1019940038154 A KR 1019940038154A KR 19940038154 A KR19940038154 A KR 19940038154A KR 960022411 A KR960022411 A KR 960022411A
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KR
South Korea
Prior art keywords
methylene chloride
antimony
difluoromethane
mol
reaction
Prior art date
Application number
KR1019940038154A
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English (en)
Inventor
남경희
나두찬
김대수
Original Assignee
남경희
울산화학 주식회사
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.)
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Publication date
Application filed by 남경희, 울산화학 주식회사 filed Critical 남경희
Priority to KR1019940038154A priority Critical patent/KR960022411A/ko
Priority to US08/398,965 priority patent/US5495057A/en
Priority to JP7059050A priority patent/JP2840929B2/ja
Priority to FR9504044A priority patent/FR2728895B1/fr
Publication of KR960022411A publication Critical patent/KR960022411A/ko

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/02Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/16Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a six-membered ring
    • C07C13/20Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a six-membered ring with a cyclohexene ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/093Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206Preparation 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

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  • 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)

Abstract

본 발명은 오염화안티모니(SbCl5)를 촉매로 사용하여 메틸렌클로라이드(CH2Cl2)와 불화수소(HF)를 액상 반응시켜 디플루오로메탄(Difluoromethane: CH2F2라 함)을 제조하는 방법에 관한 것으로서, 촉매량은 메틸렌클로라이드 1몰당 SbCl50.05∼0.17몰에서 선택되고, 5가 안티모니(Sb+5)의 농도를 85%이상 유지하면서, 반응 온도 70∼90℃, 반응입력 11∼12㎏/㎠ㆍG에서 원료공급 몰비가 메틸렌클로라이드 1몰에 대하여 불화수소가 2.0∼2.3몰이 되는 조건에서 연속적으로(Continuous System) 액상 반응시켜 오존층을 전혀 파괴하지 않는 디플루오로메탄(HFC-32)을 산업적 규모로 제조하는 방법에 관한 것이다.

Description

디플루오로메탄의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 안티모니 할라이드를 촉매로 하여 메틸렌클로라이드와 불화수소를 액상반응시켜 디플루오로메탄을 제조하는 방법에 있어서, 오염화 안티모니(SbCl5)를 촉매로 하고 오염화 안티모니의 농도를 메틸렌클로라이드 1몰에 대하여 0.05∼0.17몰로 하여 디플루오로메탄을 제조하는 방법.
  2. 제1항에 있어서, 5가 안티모니(Sb+5)의 농도를 85% 이상 유지하면서 디플루오로메탄을 제조하는 방법.
  3. 제1항에 있어서, 반응온도 70∼90℃, 반응압력 11∼12㎏/㎠ㆍG에서 디플루오로멘탄을 제조하는 방법.
  4. 제1항에 있어서, 원료공급 몰비가 메틸렌클로라이드 1몰에 대하여 불화수소가 2.0∼2.3몰에서 디플루오로메탄을 제조하는 방법.
    ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019940038154A 1994-12-28 1994-12-28 디플루오로메탄의 제조방법 KR960022411A (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019940038154A KR960022411A (ko) 1994-12-28 1994-12-28 디플루오로메탄의 제조방법
US08/398,965 US5495057A (en) 1994-12-28 1995-03-02 Method for the preparation of difluoromethane
JP7059050A JP2840929B2 (ja) 1994-12-28 1995-03-17 ジフルオロメタンの製造方法
FR9504044A FR2728895B1 (fr) 1994-12-28 1995-04-05 Procede de preparation du difluoromethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940038154A KR960022411A (ko) 1994-12-28 1994-12-28 디플루오로메탄의 제조방법

Publications (1)

Publication Number Publication Date
KR960022411A true KR960022411A (ko) 1996-07-18

Family

ID=19404432

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940038154A KR960022411A (ko) 1994-12-28 1994-12-28 디플루오로메탄의 제조방법

Country Status (4)

Country Link
US (1) US5495057A (ko)
JP (1) JP2840929B2 (ko)
KR (1) KR960022411A (ko)
FR (1) FR2728895B1 (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9404715D0 (en) * 1993-03-24 1994-04-27 Ici Plc Production of difluoromethane
KR100344863B1 (ko) * 1994-06-20 2002-09-18 다이낑 고오교 가부시키가이샤 디플루오로메탄의제조방법
CA2194151C (en) * 1994-07-01 2006-12-12 Yasufu Yamada Process for producing difluoromethane
US6099694A (en) * 1996-06-14 2000-08-08 Alliedsignal Inc. Azeotrope-like compositions of difluoromethane and chlorine
WO1998008790A1 (fr) * 1996-08-27 1998-03-05 Daikin Industries, Ltd. Procede de fabrication de difluoromethane
BE1010626A3 (fr) * 1996-09-16 1998-11-03 Solvay Procede pour la preparation de difluoromethane.
US5800682A (en) * 1996-10-08 1998-09-01 Alliedsignal Inc. Process for the production of difluoromethane
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
KR100512845B1 (ko) * 2002-11-21 2005-09-07 울산화학주식회사 디플르오로메탄의 제조 방법
JP2004263885A (ja) * 2003-02-07 2004-09-24 Daikin Ind Ltd 冷媒配管の洗浄方法、空気調和装置の更新方法、及び、空気調和装置
US20060036117A1 (en) * 2004-08-10 2006-02-16 Mitchel Cohn Catalyst preparation processes, catalyst regeneration processes, halocarbon production processes, and halocarbon production systems
FR2994430B1 (fr) * 2012-08-10 2014-12-19 Arkema France Procede de production du difluoromethane
CN113698270A (zh) * 2021-08-24 2021-11-26 聊城氟尔新材料科技有限公司 一种二氟甲烷稳定生产的工艺及系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749375A (en) * 1956-06-05 Fluorination
US2005705A (en) * 1930-09-20 1935-06-18 Kinetic Chemicals Inc Preparation of carbon compounds containing fluorine
US2005713A (en) * 1933-02-02 1935-06-18 Kinetic Chemicals Inc Production of fluorinated acyclic hydrocarbons

Also Published As

Publication number Publication date
JPH08183748A (ja) 1996-07-16
FR2728895A1 (fr) 1996-07-05
US5495057A (en) 1996-02-27
FR2728895B1 (fr) 1997-09-12
JP2840929B2 (ja) 1998-12-24

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