KR940000410A - Method for preparing 1,1,1-trifluoro-2,2-dichloroethane - Google Patents

Method for preparing 1,1,1-trifluoro-2,2-dichloroethane Download PDF

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Publication number
KR940000410A
KR940000410A KR1019920009791A KR920009791A KR940000410A KR 940000410 A KR940000410 A KR 940000410A KR 1019920009791 A KR1019920009791 A KR 1019920009791A KR 920009791 A KR920009791 A KR 920009791A KR 940000410 A KR940000410 A KR 940000410A
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South Korea
Prior art keywords
trifluoro
dichloroethane
chlorine
molar ratio
hydrogen
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KR1019920009791A
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Korean (ko)
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KR950011099B1 (en
Inventor
김훈식
박건유
이병권
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박원희
한국과학기술연구원
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Priority to KR1019920009791A priority Critical patent/KR950011099B1/en
Publication of KR940000410A publication Critical patent/KR940000410A/en
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Publication of KR950011099B1 publication Critical patent/KR950011099B1/en

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    • 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
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms

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

Abstract

활성탄 촉매 존재하에서 1,1,1-트리플루오로-2-클로로에탄에 염소 및 수소를 공급함으로써 1,1,1-트리플루오로-2-클로로에탄의 전환율을 저하시키는 일이 없이 1,1,1-트리플루오로-2,2-디클로로에탄의 선택도 향상시킬 수 있는 1,1,1-트리플루오로-2,2-디클로로에탄의 개선된 제조 방법이 제공된다.By supplying chlorine and hydrogen to 1,1,1-trifluoro-2-chloroethane in the presence of activated carbon catalyst, 1,1 without reducing the conversion of 1,1,1-trifluoro-2-chloroethane An improved process for the preparation of 1,1,1-trifluoro-2,2-dichloroethane is provided that can improve the selectivity of, 1-trifluoro-2,2-dichloroethane.

Description

1,1,1-트리플루오로-2,2-디클로로에탄의 제조 방법Method for preparing 1,1,1-trifluoro-2,2-dichloroethane

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (10)

1,1,1-트리플루오로-2-클로로에탄과 염소를 반응시켜 1,1,1-트리플루오로-2,2-디클로로에탄을 제조하는 방법에 있어서, 상기 염소화 반응이 활성탄 존재하에서 1,1,1-트리플루오로-2-클로로에탄에 염소와 수소를 공급함으로써 이루어지는 것을 특징으로 하는 개선된 1,1,1-트리플루오로-2,2-디클로로에탄의 제조방법.In a method for producing 1,1,1-trifluoro-2,2-dichloroethane by reacting 1,1,1-trifluoro-2-chloroethane with chlorine, wherein the chlorination reaction is carried out in the presence of activated carbon 1 A process for preparing an improved 1,1,1-trifluoro-2,2-dichloroethane, characterized by feeding chlorine and hydrogen to, 1,1-trifluoro-2-chloroethane. 제 1 항에 있어서, Cl2/CF3CH2Cl의 몰비가 0.5-10인 방법.The process of claim 1 wherein the molar ratio of Cl 2 / CF 3 CH 2 Cl is 0.5-10. 제 2 항에 있어서, Cl2/CF3CH2Cl의 몰비가 1-5인 방법.The process of claim 2 wherein the molar ratio of Cl 2 / CF 3 CH 2 Cl is 1-5. 제 1 항에 있어서, H2/CF3CH2Cl의 몰비가 0.25-5인 방법.The method of claim 1 wherein the molar ratio of H 2 / CF 3 CH 2 Cl is 0.25-5. 제 4 항에 있어서, H2/CF3CH2Cl의 몰비가 0.5-3인 방법.The process of claim 4 wherein the molar ratio of H 2 / CF 3 CH 2 Cl is 0.5-3. 제 1 항에 있어서, 반응 온도가 250-500℃인 방법.The process of claim 1 wherein the reaction temperature is 250-500 ° C. 제 6 항에 있어서, 반응 온도가 350-450℃인 방법.The method of claim 6, wherein the reaction temperature is 350-450 ° C. 8. 제 1 항에 있어서, 접촉 시간이 1-90초인 방법.The method of claim 1 wherein the contact time is 1-90 seconds. 제 8 항에 있어서, 접촉 시간이 15-40초인 방법.The method of claim 8, wherein the contact time is 15-40 seconds. 제 1 항에 있어서, 상기 수소와 염소가 반응기에 동시에 공급되거나 또는 염소가 먼저 공급되고 이어서 수소가 공급되는 방법.The process of claim 1 wherein the hydrogen and chlorine are fed simultaneously into the reactor or chlorine is fed first and then hydrogen. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920009791A 1992-06-05 1992-06-05 Preparation of 1,1,1-trifluoro-2,2-dichloroethane KR950011099B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920009791A KR950011099B1 (en) 1992-06-05 1992-06-05 Preparation of 1,1,1-trifluoro-2,2-dichloroethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920009791A KR950011099B1 (en) 1992-06-05 1992-06-05 Preparation of 1,1,1-trifluoro-2,2-dichloroethane

Publications (2)

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KR940000410A true KR940000410A (en) 1994-01-03
KR950011099B1 KR950011099B1 (en) 1995-09-28

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KR1019920009791A KR950011099B1 (en) 1992-06-05 1992-06-05 Preparation of 1,1,1-trifluoro-2,2-dichloroethane

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KR950011099B1 (en) 1995-09-28

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