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KR920002499A - 1,1,1,2-테트라플루오로에탄 분리 방법 - Google Patents

1,1,1,2-테트라플루오로에탄 분리 방법 Download PDF

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Publication number
KR920002499A
KR920002499A KR1019910011297A KR910011297A KR920002499A KR 920002499 A KR920002499 A KR 920002499A KR 1019910011297 A KR1019910011297 A KR 1019910011297A KR 910011297 A KR910011297 A KR 910011297A KR 920002499 A KR920002499 A KR 920002499A
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South Korea
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hfa
distillation column
mixture
azeotrope
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KR1019910011297A
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English (en)
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KR100220439B1 (ko
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마크 테일러 앤드류
윌리암 휠하우스 로버트
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수잔 제인 젠틀
임페리알 케미칼 인더스트리스 피엘씨
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Priority claimed from GB909014852A external-priority patent/GB9014852D0/en
Priority claimed from GB909014851A external-priority patent/GB9014851D0/en
Application filed by 수잔 제인 젠틀, 임페리알 케미칼 인더스트리스 피엘씨 filed Critical 수잔 제인 젠틀
Publication of KR920002499A publication Critical patent/KR920002499A/ko
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Publication of KR100220439B1 publication Critical patent/KR100220439B1/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
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • C01B7/195—Separation; Purification
    • C01B7/196—Separation; Purification by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/918—Halocarbon

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

Abstract

내용 없음

Description

1,1,1,2-테트라플루오로에탄 분리 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도 및 제2도는 HFA 134a와 HF로 이루어진 HF가 많은 혼합물을 설치한데 이용되는 장치를 도식적으로 나타낸 것이다.

Claims (10)

  1. HFA 134a와 HF 및/또는 1-클로로-2,2-디플루오로에틸렌으로 이루어진 혼합물을 증류탑에 통과시켜 순수 HFA 134a로 이루어진 잔사로부터 HFA 134a와 HF 및 /또는 CFC 1122의 공비물 또는 공비물에 가까운 혼합물을 분리해내고 증류탑으로부터 상기 잔사를 모으는 것으로 이루어지는, HFA 134a와 HF 및/또는 CFC 1122로 이루어진 HFA 134a가 많은 혼합물로 부터 1,1,1,2-테트라플루오로에탄(HFA 134a)을 분리하는 방법.
  2. 제1항에 있어서, HFA 134a가 많은 혼합물이 HF가 많은 초기 혼합물을 증류함에 의해 만들어지는 방법.
  3. 제2항에 있어서, 초기 혼합물을 제1증류탑에 통과시켜 HF로 이루어진 제1잔사로부터 HF와 HFA 134a의 제1공비물 또는 공비물에 가까운 혼합물을 분리하고, 이 공비물 또는 공비물에 가까운 혼합물을 제1증류탑보다 낮은 압력 및 온도로 유지되는 제2증류탑에 공급하여 HFA 134a로 이루어진 제2잔사로부터 HF와 HFA 134a의 제2공비물 또는 공비물에 가까운 혼합물을 분리하는 것으로 구성되는 방법.
  4. 제2항 또는 제3항에 있어서, (1)초기 혼합물을 제1증류탑에 통과시켜 HFA 134a가 다량 들어있고 HF가 소량 들어있는 비교적 저비등점의 공비물 또는 공비물에 가까운 혼합물로부터 HF를 분리하고, (2)컬럼 아랫부분에서 HF를 회수하고, (3)제1증류탑에서 공비물 또는 공비물에 가까운 혼합물을 빼내 이것을 1컬럼보다 낮은 압력 및 온도로 유지되는 제2증류탑에 공급하여 HFA 134a가 다량 들어있고 HF가 소량 들어있는 공비물 또는 공비물에 가까운 혼합물로 이루어진 비교적 저비등점의 혼합물로 부터 HFA 134a를 분리하고, (4)제2증류탑의 윗쪽에서 저비등점의 혼합물을 빼내 이것을 다시 제1증류탑에 공급하고, (5)제2증류탑의 아랫부분에서 순수 HFA 134a를 회수하는 것으로 구성되는, 초기 혼합물이 HF를 다량 함유하고 HFA 134a를 소량 함유하는 방법.
  5. 제2항 또는 제3항에 있어서, 초기 혼합물을 제1증류탑에 통과시켜 HF로 이루어진 제1잔사로부터 HF와 HFA 134a의 제1공비물 또는 공비물에 가까운 혼합물을 분리하고 공비물 또는 공비물에 가까운 혼합물을 액체-액체 분리구역에 공급하여 HF가 많은 상층과 HFA 134a가 많은 하층을 분리하고 이 하층을 제2증류탑에 통과시켜 HFA 134a로 이루어진 제2잔사로부터 HF와 HFA 134a의 제2공비물 또는 공비물에 가까운 혼합물을 분리하는 것으로 구성되는 방법.
  6. 제4항 또는 제5항에 있어서, (1)HF가 많은 초기 혼합물을 제1증류탑에 통과시켜 HFA 134a가 다량 들어있고 HF가 소량 들어있는 비교적 저비등점의 공비물 또는 공비물에 가까운 혼합물로부터 HF를 분리하고, (2)컬럼 아랫부분에서 HF를 회수하고, (3)컬럼의 윗부분에서 공비물 또는 공비물에 가까운 혼합물을 빼내 이것을 분리 구역에 공급하여 HF가 많은 상층과 HFA 134a가 많은 하층을 분리하고, (4)분리 구역으로부터 HFA 134a가 많은 하층을 빼내 이것을 제2증류탑에 공급하여 HFA 134a가 다량 들어있고 HF가 소량 들어있는 비교적 저비등점의 공비물 또는 공비물에 가까운 혼합물로 부터 HFA 134a를 분리하고, (5)제2증류탑의 위쪽에서 비교적 저비등점의 혼합물을 빼내 이것을 다시 분리 구역에 공급하고, (6)제2증류탑의 아랫부분에서 순수 HFA 134a를 회수하는 단계로 구성되는 방법.
  7. HF가 많은 상층을 분리구역에서 빼내(단계 3) 제1증류탑에 공급하는 방법.
  8. 제5항, 6항 또는 제7항에 있어서, 제2증류탑이 제1증류탑 보다 낮은 온도 및 압력에서 조작되는 방법.
  9. 전기한 항의 어느 한 항에 있어서, 증류탑 또는 제1증류탑이 0.5-36바의 절대압력에서 조작되는 방법.
  10. 제9항에 있어서, 두개의 증류탑을 이용하고 제2증류탑이 0.4-8바의 절대압력에서 조작되는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910011297A 1990-07-04 1991-07-04 1,1,1,2-테트라플루오로에탄 분리 방법 KR100220439B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9014851.1 1990-07-04
GB9014852.9 1990-07-04
GB909014852A GB9014852D0 (en) 1990-07-04 1990-07-04 Process
GB909014851A GB9014851D0 (en) 1990-07-04 1990-07-04 Process

Publications (2)

Publication Number Publication Date
KR920002499A true KR920002499A (ko) 1992-02-28
KR100220439B1 KR100220439B1 (ko) 1999-09-15

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US (1) US5211020A (ko)
EP (1) EP0467531B1 (ko)
JP (1) JP2680945B2 (ko)
KR (1) KR100220439B1 (ko)
CN (1) CN1028322C (ko)
AU (1) AU631745B2 (ko)
BR (1) BR9102797A (ko)
CA (1) CA2045753C (ko)
DE (1) DE69104426T2 (ko)
DK (1) DK0467531T3 (ko)
ES (1) ES2062687T3 (ko)
GB (1) GB9113287D0 (ko)
IE (1) IE65629B1 (ko)
MY (1) MY106547A (ko)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9105407D0 (en) * 1991-03-14 1991-05-01 Ici Plc Separation process
GB9107087D0 (en) * 1991-04-04 1991-05-22 Ici Plc Purification process
GB9224594D0 (en) * 1991-12-10 1993-01-13 Ici Plc Water separation process
FR2694556B1 (fr) * 1992-08-05 1994-09-23 Atochem Elf Sa Procédé de purification du 1,1,1,2-tétrafluoroéthane.
US5346595A (en) * 1993-02-23 1994-09-13 Alliedsignal Inc. Process for the purification of a pentafluoroethane azeotrope
BE1006962A3 (fr) * 1993-04-01 1995-02-07 Solvay Compositions azeotropiques comprenant de l'eau et un hydrofluorocarbure, procede d'elimination d'eau d'une solution par distillation azeotropique et procede de production d'un hydrofluoroalcane.
JP3163831B2 (ja) * 1993-04-06 2001-05-08 ダイキン工業株式会社 １，１−ジフルオロエタンとフッ化水素の共沸混合物および１，１−ジフルオロエタンまたはフッ化水素の回収方法
US5723429A (en) * 1994-03-11 1998-03-03 E. I. Du Pont De Nemours And Company Azeotropic or azeotrope-like compositions of tetrafluoroethane and chlorotetrafluoroethane
US5470442A (en) * 1994-03-11 1995-11-28 E. I. Du Pont De Nemours And Company Separating and removing impurities from tetrafluoroethanes by using extractive distillation
JP2933014B2 (ja) 1996-01-23 1999-08-09 ダイキン工業株式会社 ペンタフルオロプロパンとフッ化水素の共沸混合物およびペンタフルオロプロパンの分離精製方法
US5632966A (en) * 1996-03-07 1997-05-27 Alliedsignal Inc. Process for hydrogen fluoride separation
US5766483A (en) * 1996-05-10 1998-06-16 Alliedsignal Inc. Process for hydrogen fluoride separation
US5785822A (en) * 1996-05-23 1998-07-28 Alliedsignal Inc. Process for separating difluoromethane
US5948381A (en) * 1996-07-03 1999-09-07 Alliedsignal Inc. Process for separating fluorocarbon compounds
US5895639A (en) * 1996-07-03 1999-04-20 Alliedsignal Inc. Separation of hydrogen fluoride from a fluorocarbon/hydrogen fluoride azeotropic mixture by sulfuric acid
DE69708127T2 (de) 1996-08-27 2002-06-20 Daikin Industries, Ltd. Verfahren zur herstellung von difluormethan
US5918481A (en) * 1997-11-20 1999-07-06 Alliedsignal Inc. Process for separating hydrogen fluoride from fluorocarbons
US6407297B1 (en) 1997-11-25 2002-06-18 Ineos Fluor Holdings Limited Preparation of fluorine-containing organic compounds
CA2309694A1 (en) * 1997-11-25 1999-06-03 Imperial Chemical Industries Plc Preparation of fluorine-containing organic compounds
FR2806077B1 (fr) 2000-03-07 2004-01-30 Solvay Procede pour l'obtention d'un hydrofluoroalcane epure, hydrofluoroalcane epure, utilisation de l'hydrofluoroalcane et methode d'analyse d'un hydrofluoroalcane
EP1291337A1 (en) * 2001-09-07 2003-03-12 SOLVAY (Société Anonyme) Process for the obtention of purified heptafluoropropane
US7371363B2 (en) * 2003-07-15 2008-05-13 Honeywell International Inc. Methods of purifying hydrogen fluoride
US7423188B2 (en) 2005-11-01 2008-09-09 E. I. Du Pont De Nemours And Company Azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof
GB0614927D0 (en) * 2006-07-27 2006-09-06 Ineos Fluor Holdings Ltd Separation process
US7608574B2 (en) * 2006-08-17 2009-10-27 Honeywell International Inc. Azeotropic or azeotropic-like compositions of 1,1,1-trifuoroethane and 1-chloro-2,2,2-trifluoroethane
JP2010533678A (ja) * 2007-07-20 2010-10-28 ゾルファイ フルーオル ゲゼルシャフト ミット ベシュレンクテル ハフツング 精製ヒドロフルオロアルカンを得るための方法
CN112250540B (zh) * 2020-10-14 2023-10-31 太仓中化环保化工有限公司 一种从精馏重组分中分离R134a、R133a和R124的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373942A (en) * 1981-02-09 1983-02-15 Pennwalt Corporation Chlorocarbon and halogen recovery from vent gas stream
DE3416519A1 (de) * 1983-05-20 1984-11-22 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtung zur zerlegung eines gasgemisches
US4944846A (en) * 1988-08-01 1990-07-31 E. I. Dupont De Nemours And Company Process for the separation of HF via Azeotropic distillation
US4911792A (en) * 1988-08-01 1990-03-27 E. I. Du Pont De Nemours And Company Process for the separation of HF via phase separation and distillation

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Publication number Publication date
AU631745B2 (en) 1992-12-03
GB9113287D0 (en) 1991-08-07
ES2062687T3 (es) 1994-12-16
KR100220439B1 (ko) 1999-09-15
CA2045753C (en) 2001-04-10
BR9102797A (pt) 1992-02-04
DE69104426T2 (de) 1995-02-16
EP0467531A1 (en) 1992-01-22
CA2045753A1 (en) 1992-01-05
AU7924291A (en) 1992-01-09
IE65629B1 (en) 1995-11-01
DE69104426D1 (de) 1994-11-10
IE912131A1 (en) 1992-01-15
EP0467531B1 (en) 1994-10-05
JPH04261126A (ja) 1992-09-17
US5211020A (en) 1993-05-18
CN1028322C (zh) 1995-05-03
CN1061587A (zh) 1992-06-03
MY106547A (en) 1995-06-30
DK0467531T3 (da) 1994-10-31
JP2680945B2 (ja) 1997-11-19

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