KR970010719A - 1,1,1,2-테트라플루오로에탄, 펜타플루오로에탄 및 1,1,1-트리플루오로에탄의 병산 방법 - Google Patents

1,1,1,2-테트라플루오로에탄, 펜타플루오로에탄 및 1,1,1-트리플루오로에탄의 병산 방법 Download PDF

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KR970010719A
KR970010719A KR1019950026126A KR19950026126A KR970010719A KR 970010719 A KR970010719 A KR 970010719A KR 1019950026126 A KR1019950026126 A KR 1019950026126A KR 19950026126 A KR19950026126 A KR 19950026126A KR 970010719 A KR970010719 A KR 970010719A
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South Korea
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hfc
stage reaction
hcfc
molar ratio
tetrafluoroethane
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KR1019950026126A
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English (en)
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KR0152580B1 (ko
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김훈식
이병권
김홍곤
정문조
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김은영
한국과학기술연구원
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Priority to KR1019950026126A priority Critical patent/KR0152580B1/ko
Priority to US08/591,705 priority patent/US5659094A/en
Priority to JP8028919A priority patent/JP2905735B2/ja
Publication of KR970010719A publication Critical patent/KR970010719A/ko
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Publication of KR0152580B1 publication Critical patent/KR0152580B1/ko

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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
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/21—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms with simultaneous increase of the number of halogen atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/26—Chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • B01J27/12—Fluorides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/132—Halogens; Compounds thereof with chromium, molybdenum, tungsten or polonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/138—Halogens; Compounds thereof with alkaline earth metals, magnesium, beryllium, zinc, cadmium or mercury
    • 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
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

불화칼슘과, 삼산화크롬, 염화아연 및 염화제2철의 수용액을 혼합한 후 에탄올과 반응시켜 얻어지는 생성물을 소성함으로써 제조된 촉매의 존재하에, 1단계 반응으로서, 1,1,1-트리플루오로-2-클로로에탄(HCFC-133a)과 불화수소를 반응시켜 1,1,1,2-테트라플루오로에탄(HFC-134a), 펜타플루오로에탄(HFC-125) 및 1,1,1-트리플루오로에탄(HFC-143a)을 얻고, 2단계 반응으로서 1단계 반응생성물에 트리클로로에틸렌을 첨가하여 HCFC-133a를 제조한 다음 HFC-134a, HFC-125 및 HFC-143a를 분리하고 HCFC-133a를 1단계 반응으로 재순환시키는 것으로 이루어지는 2단계 기상반응에 의해, HFC-134a, HFC-125 및 HFC-143a를 동시에 제조하는 방법이 제공된다.

Description

1,1,1,2-테트라플루오로에탄, 펜타플루오로에탄 및 1,1,1-트리플루오로에탄의 병산 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (8)

  1. 불화칼슘(CaF2)을 삼산화크롬(CrO3)과 염화아연(ZnCl2) 및 염화제2철(FeCl2)의 수용액과 혼합한 후 에탄올(C2H5OH)과 반응시켜 얻어지는 생성물을 소성함으로써 얻어지는 불소화 촉매의 존재하에, 제1단계로서, 1반응기에서 1,1,1-트리플루오로-2-클로로에탄(CFCH2Cl, HCFC-133a)을 HF와 반응시켜 1,1,1,2-테트라플루오로에탄(HFC-134a;CF3CH2F), 펜타플루오로에탄(HFC-125;CF3CHF2) 및 1,1,1-트리플루오로에탄(HFC-143a;CH3CH3)를 제조하고, 제 2단계로서,제 2반응기에서 제 1단계 반응생성물에 트리클로로에틸렌(TCE:CCl2CHCl)을 첨가하여 HCFC-133a를 제조한 다음, 제2단계 반응생성물로부터 HCl, HFC-134a, HFC-125 및 HFC-143a를 분리한 후, 제 1반응기로 HCFC-133a를 재순환시키는 것으로 이루어지는 1,1,1,2-테트라플루오로에탄(HFC-134a;CF3CH2F), 펜타플루오로에탄(HFC-125;CF3CHF2) 및 1,1,1-트리플루오로에탄(HFC-143a;CF3CH3)의 병산방법.
  2. 제1항에 있어서, 불소화 촉매의 조성이 Cr과 Ca의 몰비가 1:1 내지 1:8이고, Cr과 Fe의 몰비가 1:0.1 내지 1:0.5이며 ; Cr과 Zn의 몰비가 1:0.1 내지 1:0.5인 방법.
  3. 제1항에 있어서, 제1단계 반응의 온도가 320∼400℃인 방법.
  4. 제1항에 있어서, 제1단계 반응의 HF/HCFC-133a 몰비가 4∼10인 방법.
  5. 제1항에 있어서, 제1단계 반응의 접촉시간이 5∼30초인 방법.
  6. 제1항에 있어서, 제2단계 반응의 온도가 230 내지 300℃인 방법.
  7. 제1항에 있어서, 제2단계 반응의 접촉시간이 2∼6초인 방법.
  8. 제1항에 있어서, 제2단계 반응의 HF/TCE의 몰비가 20∼40인 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950026126A 1995-08-23 1995-08-23 1,1,1,2-테트라플루오로에탄, 펜타플루오로에탄 및 1,1,1-트리플루오로에탄의 병산 방법 KR0152580B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950026126A KR0152580B1 (ko) 1995-08-23 1995-08-23 1,1,1,2-테트라플루오로에탄, 펜타플루오로에탄 및 1,1,1-트리플루오로에탄의 병산 방법
US08/591,705 US5659094A (en) 1995-08-23 1996-01-25 Process for co-producing 1,1,1,2-tetrafluoroethane pentafluoroethane and 1,1,1-trifluoroethane
JP8028919A JP2905735B2 (ja) 1995-08-23 1996-02-16 １，１，１，２−テトラフルオロエタン、ペンタフルオロエタン及び１，１，１−トリフルオロエタンの同時製造方法

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KR1019950026126A KR0152580B1 (ko) 1995-08-23 1995-08-23 1,1,1,2-테트라플루오로에탄, 펜타플루오로에탄 및 1,1,1-트리플루오로에탄의 병산 방법

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KR0152580B1 KR0152580B1 (ko) 1998-10-15

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR20210095288A (ko) * 2020-01-22 2021-08-02 코오롱글로텍주식회사 인조잔디 구조체

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CN101961658B (zh) * 2010-09-07 2013-03-06 西安近代化学研究所 氟化钙基氟化催化剂及其用途
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CN112125777B (zh) * 2020-08-27 2022-06-03 浙江衢化氟化学有限公司 一种联产氢氟烃的方法
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Publication number Priority date Publication date Assignee Title
KR20210095288A (ko) * 2020-01-22 2021-08-02 코오롱글로텍주식회사 인조잔디 구조체

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KR0152580B1 (ko) 1998-10-15
JP2905735B2 (ja) 1999-06-14
US5659094A (en) 1997-08-19
JPH0967278A (ja) 1997-03-11

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