KR970069114A - Method for continuous production of 1-chloro-1,1-difluoroethane and 1,1,1-trifluoroethane - Google Patents

Method for continuous production of 1-chloro-1,1-difluoroethane and 1,1,1-trifluoroethane Download PDF

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KR970069114A
KR970069114A KR1019960011993A KR19960011993A KR970069114A KR 970069114 A KR970069114 A KR 970069114A KR 1019960011993 A KR1019960011993 A KR 1019960011993A KR 19960011993 A KR19960011993 A KR 19960011993A KR 970069114 A KR970069114 A KR 970069114A
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South Korea
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reaction
chloro
difluoroethane
bar
introducing
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KR1019960011993A
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Korean (ko)
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KR0184381B1 (en
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강윤환
이윤용
이윤우
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박원훈
한국과학기술연구원
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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
    • 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
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C07C19/10—Acyclic saturated compounds containing halogen atoms containing fluorine and chlorine
    • C07C19/12—Acyclic saturated compounds containing halogen atoms containing fluorine and chlorine having two carbon atoms

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

Abstract

본 발명은 1,1,1-트리클로로에탄 또는 1,1,-디클로로에칠렌과, 무수 불화수소산을 1 : 10이상의 몰비로 15~50bar의 반응 압력, 110~180℃의 반응 온도에서 연속적으로 액상반응시키는 것으로 이루어지는 1-클로로-1,1-디플루오로에탄과 1,1,1-트리플루오로에탄을 동시에 제조하는 방법에 관한 것이다.The present invention relates to a process for the production of a liquid phase reaction product of 1,1,1-trichloroethane or 1,1, -dichloroethylene and anhydrous hydrofluoric acid in a molar ratio of 1: 10 or more at a reaction pressure of 15 to 50 bar, Chloro-1,1-difluoroethane and 1,1,1-trifluoroethane at the same time.

Description

1-클로로-1,1-디플루오로에탄과 1,1,1-트리플루오로에탄의 연속적 제조방법Method for continuous production of 1-chloro-1,1-difluoroethane and 1,1,1-trifluoroethane

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

Claims (7)

1,1,1-트리클로로에탄 또는 1,1-디클로로에칠렌과, 무수 불화수소산을 1:10이상의 몰비로 15~50bar의 반응 압력, 110-180℃의 반응 온도에서 연속적으로 액상반응시키는 것으로 이루어지는 1-클로로-1,1-디플루오로에탄과 1,1,1-트리플루오로에탄을 동시에 제조하는 방법.1,1,1-trichloroethane or 1,1-dichloroethylene and anhydrous hydrofluoric acid in a molar ratio of 1:10 or more at a reaction pressure of 15 to 50 bar and a reaction temperature of 110 to 180 ° C. A process for producing 1-chloro-1,1-difluoroethane and 1,1,1-trifluoroethane simultaneously. 제1항에 있어서, 상기 반응 온도가 120~160℃인 방법.The method according to claim 1, wherein the reaction temperature is 120 to 160 ° C. 제1항에 있어서, 상기 반응 압력이 20~40bar인 방법.The process according to claim 1, wherein the reaction pressure is 20 to 40 bar. 제1항에 있어서, 상기 반응 촉매가 존재하지 않는 상태에서 수행되는 방법.The method according to claim 1, wherein the reaction catalyst is not present. (a)1,1,1-트리클로로에탄 또는 1,1-디클로로에틸렌와, 무수 불화수소산을 각각 반응기에 도입시켜 15~50bar의 압력 및 110~180℃의 온도에서 연속적으로 액상 반응시키는 공정, (b)반응 생성물인 기체를 환류탑의 하부로 도입시키고, 도입된 기체를 상기 환류탑의 탑정에서 추가되는 혼합용액과 접촉시킨 후 주된 성분이 HCC-140a와 HCFC-141인 저휘발성 물질들은 상기 반응기로 재순환시키고, 유기생성물과 염화수소산을 포함하는 고휘발성 물질은 응축기로 도입시키는 공정; (c)상기 응축기에서 상기 고휘발성 물질을 염화수소산, HCFC-141b 및 HFC-143a가 주성분인 기체층과, 액체층으로 분리시킨 후, 상기 액체층은 상기 환류탑의 상부로 재순환시키고, 기체층을 분리 정제하여 1-클로로-1,1-디클로로-1-플루오로에탄 및 1-클로로-1,1-디플루오로에탄의 제조방법.(a) introducing 1,1,1-trichloroethane or 1,1-dichloroethylene and anhydrous hydrofluoric acid into the reactor, respectively, and continuously reacting the mixture at a pressure of 15 to 50 bar and a temperature of 110 to 180 ° C b) introducing the reaction product gas into the lower part of the reflux tower, bringing the introduced gas into contact with the mixed solution added at the top of the reflux tower, and then the low volatility materials having the main components HCC-140a and HCFC- And introducing the high volatility material including the organic product and the hydrochloric acid into the condenser; (c) separating the high volatility material into a gas layer and a liquid layer which are mainly composed of hydrochloric acid, HCFC-141b and HFC-143a in the condenser, then recycling the liquid layer to the upper portion of the reflux tower, To obtain 1-chloro-1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane. 제5항에 있어서, 상기 반응기내에서 유기 혼합물과 무수 불화수소산의 몰비가 1:20~1:500인 방법.6. The process of claim 5 wherein the molar ratio of organic mixture to anhydrous hydrofluoric acid in the reactor is from 1:20 to 1: 500. 제5항에 있어서, 상기 반응이 연속적으로 수행되는 제조방법.6. The process according to claim 5, wherein the reaction is carried out continuously. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960011993A 1996-04-19 1996-04-19 Process for producing 1-chloro-1,1-difluoro ethane and 1,1,1-trifluoroethane KR0184381B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960011993A KR0184381B1 (en) 1996-04-19 1996-04-19 Process for producing 1-chloro-1,1-difluoro ethane and 1,1,1-trifluoroethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960011993A KR0184381B1 (en) 1996-04-19 1996-04-19 Process for producing 1-chloro-1,1-difluoro ethane and 1,1,1-trifluoroethane

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KR970069114A true KR970069114A (en) 1997-11-07
KR0184381B1 KR0184381B1 (en) 1999-05-15

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US7071368B1 (en) 2005-02-09 2006-07-04 Honeywell International Inc. Method of making 1,1,1-trifluoroethane

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