BR9507409A - Processo para purificar is meros de tetrafluoroetano processo para separar is meros tetrafluoroetano processo para produção de isómeros de tetrafluoroetano purificados e composição azeotrópica ou semelhante a azeotrópica - Google Patents

Processo para purificar is meros de tetrafluoroetano processo para separar is meros tetrafluoroetano processo para produção de isómeros de tetrafluoroetano purificados e composição azeotrópica ou semelhante a azeotrópica

Info

Publication number
BR9507409A
BR9507409A BR9507409A BR9507409A BR9507409A BR 9507409 A BR9507409 A BR 9507409A BR 9507409 A BR9507409 A BR 9507409A BR 9507409 A BR9507409 A BR 9507409A BR 9507409 A BR9507409 A BR 9507409A
Authority
BR
Brazil
Prior art keywords
tetrafluoroethane
isomers
azeotropic
purifying
separating
Prior art date
Application number
BR9507409A
Other languages
English (en)
Inventor
Barry Asher Mahler
Ralph Newton Miller
Original Assignee
Du Pont
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Du Pont filed Critical Du Pont
Publication of BR9507409A publication Critical patent/BR9507409A/pt

Links

Classifications

    • 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
    • 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
    • C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR9507409A 1994-03-11 1995-03-13 Processo para purificar is meros de tetrafluoroetano processo para separar is meros tetrafluoroetano processo para produção de isómeros de tetrafluoroetano purificados e composição azeotrópica ou semelhante a azeotrópica BR9507409A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/212,439 US5470442A (en) 1994-03-11 1994-03-11 Separating and removing impurities from tetrafluoroethanes by using extractive distillation
PCT/US1995/003013 WO1995024370A1 (en) 1994-03-11 1995-03-13 Separating and removing impurities from tetrafluoroethanes by using extractive distillation

Publications (1)

Publication Number Publication Date
BR9507409A true BR9507409A (pt) 1997-10-07

Family

ID=22791019

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9507409A BR9507409A (pt) 1994-03-11 1995-03-13 Processo para purificar is meros de tetrafluoroetano processo para separar is meros tetrafluoroetano processo para produção de isómeros de tetrafluoroetano purificados e composição azeotrópica ou semelhante a azeotrópica

Country Status (11)

Country Link
US (1) US5470442A (pt)
EP (1) EP0749407B1 (pt)
JP (1) JPH09510214A (pt)
KR (1) KR100332392B1 (pt)
CN (1) CN1143945A (pt)
AU (1) AU3104995A (pt)
BR (1) BR9507409A (pt)
CA (1) CA2184474A1 (pt)
DE (1) DE69513960T2 (pt)
MX (1) MX9603988A (pt)
WO (1) WO1995024370A1 (pt)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR100348203B1 (ko) * 1994-08-17 2002-09-18 다이낑 고오교 가부시키가이샤 펜타플루오로에탄의제조방법
US5785822A (en) * 1996-05-23 1998-07-28 Alliedsignal Inc. Process for separating difluoromethane
US5800682A (en) * 1996-10-08 1998-09-01 Alliedsignal Inc. Process for the production of difluoromethane
US5779863A (en) * 1997-01-16 1998-07-14 Air Liquide America Corporation Perfluorocompound separation and purification method and system
EP1003699B9 (en) * 1997-08-12 2004-01-07 E.I. Du Pont De Nemours And Company Purification of difluoromethane by extractive distillation
US6488817B1 (en) * 1998-03-31 2002-12-03 Alliedsignal Inc. Purification of hydrofluorocarbons
US6164080A (en) * 1998-08-12 2000-12-26 Hudson Technologies, Inc. Apparatus and method for flushing a refrigeration system
US6357240B1 (en) 1998-08-12 2002-03-19 Hudson Technologies, Inc. Apparatus and method for flushing a chiller system
US6505475B1 (en) 1999-08-20 2003-01-14 Hudson Technologies Inc. Method and apparatus for measuring and improving efficiency in refrigeration systems
GB9927011D0 (en) * 1999-11-16 2000-01-12 Advanced Phytonics Ltd Method for the production of particles
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
US7189311B2 (en) 2001-03-23 2007-03-13 Honeywell International Inc. Purification of difluoromethane
KR20050085487A (ko) 2002-12-09 2005-08-29 허드슨 테크놀로지스, 인코포레이티드 냉각 시스템 최적화 방법 및 장치
US8463441B2 (en) 2002-12-09 2013-06-11 Hudson Technologies, Inc. Method and apparatus for optimizing refrigeration systems
FR2865731B1 (fr) * 2004-01-30 2007-09-07 Solvay Procede de fabrication d'un hydrofluoroalcane
WO2006009553A1 (en) * 2004-06-23 2006-01-26 Exxonmobil Chemical Patents Inc. Methods for separating mixture components
US7893176B2 (en) * 2007-03-23 2011-02-22 Exxonmobil Chemical Patents Inc. Polydispersity-controlled isoolefin polymerization with polymorphogenates
US8075777B2 (en) * 2007-05-16 2011-12-13 E. I. Du Pont De Nemours And Company Process for the separation of diastereomers
US7964760B2 (en) * 2007-05-25 2011-06-21 E.I. Du Pont De Nemours And Company Process for the separation of fluorocarbons using ionic liquids
JP6221545B2 (ja) * 2013-09-18 2017-11-01 株式会社Ihi ジェットエンジンのための導電構造
ES2820599T3 (es) 2014-09-25 2021-04-21 Daikin Ind Ltd Composición que comprende HFC y HFO
KR20180002790A (ko) * 2015-05-07 2018-01-08 더 케무어스 컴퍼니 에프씨, 엘엘씨 1,1,2,2-테트라플루오로에탄을 포함하는 조성물 및 그의 용도
FR3046160B1 (fr) * 2015-12-23 2019-12-13 Arkema France Procede de preparation du 2,3,3,3-tetrafluoro-1-propene et recyclage du 2-chloro-3,3,3-trifluoropropene exempt d'impuretes.
FR3046159B1 (fr) * 2015-12-23 2019-12-13 Arkema France Procede de preparation du 2,3,3,3-tetrafluoropropene et recyclage du 1,1,1,2,2-pentafluoropropane exempt d'impuretes.
CN106582058B (zh) * 2016-12-20 2018-10-30 山东京博石油化工有限公司 一种分离石油焦可溶有机质的方法
CN106905107B (zh) * 2017-02-24 2020-02-18 北京宇极科技发展有限公司 一种1,1-二溴-1,2,2,2-四氟乙烷的提纯方法
CN114746385B (zh) * 2019-11-28 2024-09-10 大金工业株式会社 氟系烃化合物的脱水方法

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Publication number Priority date Publication date Assignee Title
CH471760A (de) * 1966-02-23 1969-04-30 Ciba Geigy Verfahren zur Trennung von Gemischen von aliphatischen Fluorverbindungen
US3732150A (en) * 1971-10-22 1973-05-08 Phillips Petroleum Co Process for separating halogenated hydrocarbons by azeotropic distillation with ammonia
US3819493A (en) * 1973-04-26 1974-06-25 Phillips Petroleum Co Process for separating halogenated hydrocarbons by extractive distillation
GB1578933A (en) * 1977-05-24 1980-11-12 Ici Ltd Manufacture of halogenated hydrocarbons
US4996379A (en) * 1988-05-30 1991-02-26 Central Glass Company, Limited Method of preparing 1,1,1,2-tetrafluoroethane from 1,1-dichloro-1,2,2,2-tetrafluoroethane
US4906796A (en) * 1989-03-08 1990-03-06 Allied Signal Inc. Process for purifying 1,1,1,2-tetrafluoroethane
US5243105A (en) * 1990-03-29 1993-09-07 Imperial Chemical Industries Plc Chemical process
EP0467531B1 (en) * 1990-07-04 1994-10-05 Imperial Chemical Industries Plc Process for the separation of 1,1,1,2-tetrafluoroethane from mixtures thereof with hydrogen fluoride and/or 1-chloro-2,2-difluoroethylene
GB9018372D0 (en) * 1990-08-21 1990-10-03 Ici Plc Separation process
JPH04316525A (ja) * 1991-04-16 1992-11-06 Showa Denko Kk １，１，１，２−テトラフルオロエタンの精製方法
JP2897454B2 (ja) * 1991-04-19 1999-05-31 昭和電工株式会社 １，１，１，２−テトラフルオロエタンの精製法
US5336377A (en) * 1991-12-18 1994-08-09 Allied-Signal Inc. Process for removing 2-chloro-1,1-difluoroethylene from 1,1,1,2-tetrafluoroethane and co-producing 2-chloro-1,1,1,2-tetrafluoroethane
FR2689503B1 (fr) * 1992-04-03 1994-06-10 Solvay Procede d'epuration d'un hydrofluoroalcane.
DE59304392D1 (de) * 1992-06-13 1996-12-12 Hoechst Ag Verfahren zur Entfernung olefinischer Verunreinigungen aus fluorierten C3-C6-Kohlenwasserstoffen
TW222617B (pt) * 1992-08-20 1994-04-21 Showa Denko Kk
BR9402038A (pt) * 1993-05-25 1995-03-07 Showa Denko Kk Processo de purificação de pentaflúor etano

Also Published As

Publication number Publication date
DE69513960D1 (de) 2000-01-20
CN1143945A (zh) 1997-02-26
KR100332392B1 (ko) 2002-11-13
MX9603988A (es) 1997-09-30
EP0749407B1 (en) 1999-12-15
WO1995024370A1 (en) 1995-09-14
AU3104995A (en) 1995-09-25
CA2184474A1 (en) 1995-09-14
DE69513960T2 (de) 2000-07-27
EP0749407A1 (en) 1996-12-27
JPH09510214A (ja) 1997-10-14
US5470442A (en) 1995-11-28

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]