KR920019713A - Method for preparing 1,1,1,2-tetrafluoroethane - Google Patents

Method for preparing 1,1,1,2-tetrafluoroethane Download PDF

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KR920019713A
KR920019713A KR1019910005448A KR910005448A KR920019713A KR 920019713 A KR920019713 A KR 920019713A KR 1019910005448 A KR1019910005448 A KR 1019910005448A KR 910005448 A KR910005448 A KR 910005448A KR 920019713 A KR920019713 A KR 920019713A
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South Korea
Prior art keywords
reaction zone
trichloroethylene
tetrafluoroethane
trifluoro
chloroethane
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KR1019910005448A
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Korean (ko)
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KR0171414B1 (en
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데이비드 스코트 존
앤 스티븐 라첼
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수잔 제인 젠틀
임페리알 케미칼 인더스트리스 피엘씨
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Priority to KR1019910005448A priority Critical patent/KR0171414B1/en
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    • 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00Acyclic saturated compounds containing halogen atoms
    • C07C19/08Acyclic 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)

Abstract

내용 없음No content

Description

1,1,1,2-테트라플루오로에탄의 제조방법Method for preparing 1,1,1,2-tetrafluoroethane

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

Claims (10)

(A) 1,1,1-트리플루오로-2-클로로에탄과 불화수소의 혼합물을 약 280-450℃의 온도의 제1반응 영역내에서 불소화 촉매와 접촉시켜 반응하지 않은 출발물질과 함께 1,1,1,2-테트라플루오로에탄 및 염화수소를 함유한 생성물을 형성시키고, (B) 트리클로로 에틸렌과 함께 단계 (A) 의 총 생성물을 단계(A)의 온도 보다 더 낮은 약 200-400℃온도에서 불소화 촉매가 들어있는 제2반응 영역에 보내 1,1,1-트리플루오로-2-클로로에탄, 염화수소 및 반응하지 않은 트리클로로에틸렌을 함유한 생성물을 형성시키며, (C) 1,1,1-트리플루오로-2-클로로에탄, 반응하지 않은 불화수소 및 트리클로로에틸렌으로부터 1,1,1,2-테트라플루오로에탄과 염화수소를 분리할 수 있도록 단계(B)의 생성물을 처리하고, (D) 단계 (C)에서 얻은 1,1,1-트리플루오로-2-클로로에탄 혼합물을 불화수소와 함께 상기 제1반응 영역(단계 A)에 공급하며, (E) 단계 (C)에서 분리해낸 1,1,1,2-테트라플루오로에탄 및 염화수소로부터 1,1,1,2-테트라플루오로에탄을 회수하는 단계들로 구성된 1,1,1,2-테트라플루오로에탄의 제조방법.(A) A mixture of 1,1,1-trifluoro-2-chloroethane and hydrogen fluoride was contacted with a fluorinated catalyst in a first reaction zone at a temperature of about 280-450 ° C. with unreacted starting material 1 Forming a product containing 1,1,2-tetrafluoroethane and hydrogen chloride, and (B) the total product of step (A) together with trichloroethylene to be lower than the temperature of step (A) about 200-400 Sent to a second reaction zone containing a fluorination catalyst at a temperature of < 0 > C to form a product containing 1,1,1-trifluoro-2-chloroethane, hydrogen chloride and unreacted trichloroethylene, (C) 1, Treat the product of step (B) to separate 1,1,1,2-tetrafluoroethane and hydrogen chloride from 1,1-trifluoro-2-chloroethane, unreacted hydrogen fluoride and trichloroethylene (D) the 1,1,1-trifluoro-2-chloroethane mixture obtained in step (C) with hydrogen fluoride 1,1,1,2-tetrafluoroethane from 1,1,1,2-tetrafluoroethane and hydrogen chloride supplied to the first reaction zone (step A) and separated in step (C) Method for producing 1,1,1,2-tetrafluoroethane consisting of the steps of recovering. 제1항에 있어서, 1,1,1-트리플루오로-2-클로로에탄 1몰당 2-6몰의 불화수소가 단계(A)의 제1반응 영역내에 공급되는 방법.The process of claim 1 wherein 2-6 moles of hydrogen fluoride per mole of 1,1,1-trifluoro-2-chloroethane are fed into the first reaction zone of step (A). 제1항 또는 제2항에 있어서, 단계(A)의 제1반응 영역의 온도가 305℃-385℃인 방법.The process of claim 1 or 2, wherein the temperature of the first reaction zone of step (A) is between 305 ° C and 385 ° C. 제1항, 제2항 또는 제3항에 있어서, 트리클로로에틸렌 1몰당 15-60몰의 불화수소가 단계(B)의 제2반응 영역내에 공급되는 방법.The process according to claim 1, 2 or 3, wherein 15 to 60 moles of hydrogen fluoride per mole of trichloroethylene are fed into the second reaction zone of step (B). 제1항 내지 제4항중 어느 한 항에 있어서, 단계(B)의 제2반응 영역의 온도가 220℃-350℃인 방법.The process according to claim 1, wherein the temperature of the second reaction zone of step (B) is 220 ° C.-350 ° C. 6. 전기한 항중 어느 한 항에 있어서, 단계(A) 및 단계(B)의 접촉 시간이 5초-30초인 방법.The method of any one of the preceding claims wherein the contact time of steps (A) and (B) is between 5 and 30 seconds. 전기한 항중 어느 한 항에 있어서, 단계(A) 및 단계(B)의 반응이 5-20바(bar)의 압력하에서 행해지는 방법.The process according to any one of the preceding claims, wherein the reaction of steps (A) and (B) is carried out under a pressure of 5-20 bar. 전기한 항중 어느 한 항에 있어서, 연속식으로 실행되는 방법.The method according to any one of the preceding claims, carried out continuously. 전기한 항중 어느 한 항에 있어서, 상기 제1 및 제2반응 영역이 단열 반응기에 의해 제공되는 방법.The method of claim 1, wherein the first and second reaction zones are provided by an adiabatic reactor. 전기한 항중 어느 한 항에 있어서, 단계(A)의 생성물 스트림과 함께 단계(B)의 제2반응 영역에 공급된 트리클로로에틸렌이 제2반응 영역에 앞서 트리클로로에틸렌을 가열하고 생성물 스트림을 냉각시키기 위해 상기 단계(A)의 생성물 스트림에 부가되는 방법.The method according to any one of the preceding claims, wherein the trichloroethylene supplied to the second reaction zone of step (B) together with the product stream of step (A) heats the trichloroethylene and cools the product stream prior to the second reaction zone. To the product stream of step (A). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910005448A 1991-04-04 1991-04-04 Process for the preparation of 1,1,1,2-tetra-fluoroethane KR0171414B1 (en)

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Application Number Priority Date Filing Date Title
KR1019910005448A KR0171414B1 (en) 1991-04-04 1991-04-04 Process for the preparation of 1,1,1,2-tetra-fluoroethane

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Application Number Priority Date Filing Date Title
KR1019910005448A KR0171414B1 (en) 1991-04-04 1991-04-04 Process for the preparation of 1,1,1,2-tetra-fluoroethane

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KR920019713A true KR920019713A (en) 1992-11-19
KR0171414B1 KR0171414B1 (en) 1999-03-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200019872A (en) * 2017-06-22 2020-02-25 니폰 제온 가부시키가이샤 Method for producing octafluorocyclopentene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200019872A (en) * 2017-06-22 2020-02-25 니폰 제온 가부시키가이샤 Method for producing octafluorocyclopentene

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