KR970001289A - 디플루오로메탄의 제조방법 - Google Patents

디플루오로메탄의 제조방법 Download PDF

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Publication number
KR970001289A
KR970001289A KR1019960024202A KR19960024202A KR970001289A KR 970001289 A KR970001289 A KR 970001289A KR 1019960024202 A KR1019960024202 A KR 1019960024202A KR 19960024202 A KR19960024202 A KR 19960024202A KR 970001289 A KR970001289 A KR 970001289A
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South Korea
Prior art keywords
process according
carried out
bulk
methylene chloride
chromium catalyst
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KR1019960024202A
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English (en)
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KR100346286B1 (ko
Inventor
레뀌엠 베누아
라끄르와 에리끄
랑쯔 앙드레
Original Assignee
쟝 르블랑제
엘프 아토켐 에스.에이.
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Application filed by 쟝 르블랑제, 엘프 아토켐 에스.에이. filed Critical 쟝 르블랑제
Publication of KR970001289A publication Critical patent/KR970001289A/ko
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Publication of KR100346286B1 publication Critical patent/KR100346286B1/ko

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    • 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
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine

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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)
  • Catalysts (AREA)

Abstract

본 발명은 염화메틸렌의 촉매적 기체상 플루오르화에 의한 디플루오로메탄의 제조방법에 관한 것이다. 이 방법은 산소의 존재하에 330 내지 450℃에서 벌크 또는 지지된 크롬 촉매를 사용하여 실행한다.

Description

디플루오로메탄의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (7)

  1. 염화메틸렌 100몰당 0.1 내지 5몰의 산소의 존재하에, 330 내지 450℃에서 벌크 또는 지지된 크롬 촉매를 사용하여 실행함을 특징으로 하는, 플루오르화수소산 무수물을 사용한 염화메틸렌의 기체상 촉매적 플루오르화에 의한 디플루오르메탄의 제조방법.
  2. 제1항에 있어서, O2/CH2Cl2의 몰비가 0.5 내지 3% 임을 특징으로 하는 제조방법.
  3. 제1항 또는 제2항에 있어서, 350 내지 400℃에서 실행함을 특징으로 하는 제조방법.
  4. 제1항 내지 3항 중 어느 한 항에 있어서, 벌크 크롬 촉매를 사용함을 특징으로 하는 제조방법.
  5. 제1항 내지 3항 중 어느 한 항에 있어서, 지지된 크롬 촉매를 사용하며, 크롬의 중량 함량이 바람직하게는 20% 미만임을 특징으로 하는 제조방법.
  6. 제1항 내지 5항 중 어느 한 항에 있어서, 접촉 시간이 0.01 내지 10초, 바람직하게는 0.05 내지 5초임을 특징으로 하는 제조방법.
  7. 제1항 내지 6항 중 어느 한 항에 있어서, 1 내지 20바 절대압에서 실행함을 특징으로 하는 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960024202A 1995-06-27 1996-06-26 디플루오로메탄의제조방법 KR100346286B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9507705A FR2736048B1 (fr) 1995-06-27 1995-06-27 Synthese du difluoromethane
FR9507705 1995-06-27

Publications (2)

Publication Number Publication Date
KR970001289A true KR970001289A (ko) 1997-01-24
KR100346286B1 KR100346286B1 (ko) 2002-11-30

Family

ID=9480425

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960024202A KR100346286B1 (ko) 1995-06-27 1996-06-26 디플루오로메탄의제조방법

Country Status (11)

Country Link
US (1) US5900514A (ko)
EP (1) EP0751107B1 (ko)
JP (1) JP3758749B2 (ko)
KR (1) KR100346286B1 (ko)
CN (1) CN1066429C (ko)
AU (1) AU714842B2 (ko)
CA (1) CA2179536C (ko)
DE (1) DE69624759T2 (ko)
ES (1) ES2183920T3 (ko)
FR (1) FR2736048B1 (ko)
TW (1) TW328071B (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2151464T3 (es) * 1996-02-07 2002-12-16 Lead Chem Co Ltd Preparacion para aplicacion externa que comprende tranilast y procedimiento para producirla.
CA2311547A1 (en) * 1997-11-21 1999-06-03 John Stephen Bass Method of producing hydrofluorocarbons
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
KR100567208B1 (ko) * 2004-06-03 2006-04-07 장세창 타수계가 구비된 관절형 골프티
ES2770405T3 (es) 2010-10-22 2020-07-01 Arkema France Proceso para la fabricación de 2-cloro-3,3,3-trifluropropeno por fluoración en fase gaseosa de pentacloropropano
CN102659835B (zh) * 2012-02-26 2016-02-17 河北工业大学 一种氟代磷酸酯材料的制备方法
JP6176262B2 (ja) * 2015-01-13 2017-08-09 ダイキン工業株式会社 含フッ素オレフィンの製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3644545A (en) * 1968-06-20 1972-02-22 Allied Chem Improved vapor phase fluorination procedure in the presence of catalyst and alkali metal fluoride
JPS5182206A (en) * 1975-01-16 1976-07-19 Asahi Glass Co Ltd Futsusokashokubaino katsuseiijihoho
US5051537A (en) * 1988-02-12 1991-09-24 E. I. Du Pont De Nemours And Company Gas-phase fluorination
CA1310335C (en) * 1988-02-12 1992-11-17 Leo E. Manzer Gas-phase fluorination process
FR2684567B1 (fr) * 1991-12-09 1994-11-04 Atochem Catalyseurs massiques a base d'oxydes de chrome et de nickel, et leur application a la fluoration d'hydrocarbures halogenes.
FR2686875B1 (fr) * 1992-01-30 1994-04-08 Atochem Elf Sa Procede de fabrication du 1,1,1,2-tetrafluoroethane.
EP0629440B1 (en) * 1993-06-18 1998-01-14 Showa Denko Kabushiki Kaisha Fluorination catalyst and fluorination process
US5763708A (en) * 1995-09-20 1998-06-09 Allied Signal Inc. Process for the production of difluoromethane

Also Published As

Publication number Publication date
EP0751107B1 (fr) 2002-11-13
TW328071B (en) 1998-03-11
DE69624759D1 (de) 2002-12-19
EP0751107A1 (fr) 1997-01-02
CA2179536C (fr) 2008-06-03
FR2736048A1 (fr) 1997-01-03
JP3758749B2 (ja) 2006-03-22
CA2179536A1 (fr) 1996-12-28
CN1150943A (zh) 1997-06-04
AU714842B2 (en) 2000-01-13
AU5629096A (en) 1997-01-09
ES2183920T3 (es) 2003-04-01
KR100346286B1 (ko) 2002-11-30
DE69624759T2 (de) 2003-07-03
JPH0912488A (ja) 1997-01-14
CN1066429C (zh) 2001-05-30
US5900514A (en) 1999-05-04
FR2736048B1 (fr) 1997-08-01

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