KR950029245A - 디플루오르메탄의 제조방법 - Google Patents

디플루오르메탄의 제조방법 Download PDF

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Publication number
KR950029245A
KR950029245A KR1019940008151A KR19940008151A KR950029245A KR 950029245 A KR950029245 A KR 950029245A KR 1019940008151 A KR1019940008151 A KR 1019940008151A KR 19940008151 A KR19940008151 A KR 19940008151A KR 950029245 A KR950029245 A KR 950029245A
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KR
South Korea
Prior art keywords
reaction
dichloromethane
alumina catalyst
mol
chromium
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Application number
KR1019940008151A
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English (en)
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KR970011701B1 (ko
Inventor
정건용
박종민
이윤용
Original Assignee
김은영
한국과학기술연구원
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Application filed by 김은영, 한국과학기술연구원 filed Critical 김은영
Priority to KR1019940008151A priority Critical patent/KR970011701B1/ko
Publication of KR950029245A publication Critical patent/KR950029245A/ko
Application granted granted Critical
Publication of KR970011701B1 publication Critical patent/KR970011701B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/07—Preparation of halogenated hydrocarbons by addition of hydrogen halides
    • 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
    • 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
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

본 발명은 크롬금속을 함침시킨 알루미나 촉매상에서 기체 상태의 디클로메탄과 무수불화 수소산을 1 : 2 내지 1 : 10의 몰비로 반응온도 200 내지 500℃, 반응접촉시간 5 내지 10초 그리고 상압 내지 고압에서 산소 또는 압축공기를 공급하면서 반응시키는 디프루오르 매탄제조방법으로 본 발명에 의하면 고수율로 디플루오르메탄을 제조할 뿐만 아니라 촉매의 활성을 장시간동안 유지시킬 수 있다.

Description

디플루오르메탄의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (3)

  1. 2내지 10중량% 크롬을 함침시킨 알루미나 촉매 존재하에 디클로메탄과 무수불화수소산을 1 : 2내지 1 : 10의 몰비로 반응온도 200내지 500℃, 반응접촉 시간 5 내지 40초, 반응압력 상압 내지 10기압에서 기상반응시키는 디플루오르매탄의 제조방법.
  2. 제1항에 있어서, 촉매활성이 저하되면 알루미나 촉매를 300 내지 600℃의온도에서 촉매 1그람당 분당 0.25 내지 1㎖의공기 또는 0.05 내지 0.2㎖의 산소를 공급하여 촉매를 재생시켜 사용하는 디플루오르매탄의 제조방법.
  3. 2내지 10중량% 크롬을 함침시킨 알루미나 촉매존재하에 디클로로메탄과 무수불화수소산을 1 : 2내지 1 : 10의 몰비로 디클로로메탄 1몰당 0.01 내지 1.5몰의 공기 또는 0.002 내지 0.3몰의 산소를 공급하면서 반응온도 200 내지 500℃, 반응접촉시간 5 내지 40초, 반응압력 상압 내지 10기압에서 기상반응 시키는 디플루오로메탄의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019940008151A 1994-04-19 1994-04-19 디플루오르메탄의 제조방법 KR970011701B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940008151A KR970011701B1 (ko) 1994-04-19 1994-04-19 디플루오르메탄의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940008151A KR970011701B1 (ko) 1994-04-19 1994-04-19 디플루오르메탄의 제조방법

Publications (2)

Publication Number Publication Date
KR950029245A true KR950029245A (ko) 1995-11-22
KR970011701B1 KR970011701B1 (ko) 1997-07-14

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ID=19381270

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940008151A KR970011701B1 (ko) 1994-04-19 1994-04-19 디플루오르메탄의 제조방법

Country Status (1)

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KR (1) KR970011701B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101287974B1 (ko) * 2011-07-07 2013-07-23 한국과학기술연구원 클로로디플루오로메탄으로부터 수첨탈염소반응을 통한 고수율의 디플루오로메탄의 제조방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101287974B1 (ko) * 2011-07-07 2013-07-23 한국과학기술연구원 클로로디플루오로메탄으로부터 수첨탈염소반응을 통한 고수율의 디플루오로메탄의 제조방법

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Publication number Publication date
KR970011701B1 (ko) 1997-07-14

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