WO1991006521A3 - Procede de purification de chlorofluorohydrocarbure - Google Patents

Procede de purification de chlorofluorohydrocarbure Download PDF

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Publication number
WO1991006521A3
WO1991006521A3 PCT/US1990/006169 US9006169W WO9106521A3 WO 1991006521 A3 WO1991006521 A3 WO 1991006521A3 US 9006169 W US9006169 W US 9006169W WO 9106521 A3 WO9106521 A3 WO 9106521A3
Authority
WO
WIPO (PCT)
Prior art keywords
chlorofluorohydrocarbon
purification process
mixture
isomers
chlorofluorohydrocarbons
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1990/006169
Other languages
English (en)
Other versions
WO1991006521A2 (fr
Inventor
Shlomo Michael Rozen
Bruce Edmund Smart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of WO1991006521A2 publication Critical patent/WO1991006521A2/fr
Publication of WO1991006521A3 publication Critical patent/WO1991006521A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound

Landscapes

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

Abstract

Les chlorofluorohydrocarbures contaminés par des isomères indésirés pendant le procédé de production sont purifiés en faisant réagir le mélange avec des solutions d'alcool d'un métal alcalin puis en séparant les dérivés éther des isomères du mélange.
PCT/US1990/006169 1989-11-02 1990-10-31 Procede de purification de chlorofluorohydrocarbure Ceased WO1991006521A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/430,945 US4973774A (en) 1989-11-02 1989-11-02 Chlorofluorohydrocarbon purification process
US430,945 1989-11-02

Publications (2)

Publication Number Publication Date
WO1991006521A2 WO1991006521A2 (fr) 1991-05-16
WO1991006521A3 true WO1991006521A3 (fr) 1991-07-11

Family

ID=23709760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/006169 Ceased WO1991006521A2 (fr) 1989-11-02 1990-10-31 Procede de purification de chlorofluorohydrocarbure

Country Status (5)

Country Link
US (1) US4973774A (fr)
CN (1) CN1051348A (fr)
AU (1) AU6728190A (fr)
WO (1) WO1991006521A2 (fr)
ZA (1) ZA908743B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115025A1 (de) * 1991-05-08 1992-11-12 Hoechst Ag Verfahren zur entfernung olefinischer verunreinigungen aus 1,1,1,2,3,3,3-heptafluorpropan
FR2689503B1 (fr) * 1992-04-03 1994-06-10 Solvay Procede d'epuration d'un hydrofluoroalcane.
FR2689885B1 (fr) * 1992-04-14 1994-10-21 Atochem North America Elf Procédé pour inhiber la décomposition du 1,1-dichloro-1-fluoréthane.
EP0574756B1 (fr) * 1992-06-13 1996-11-06 Hoechst Aktiengesellschaft Procédé pour l'élimination d'impuretés oléfiniques de C3-C6-hydrocarbures fluorés
DE4241969A1 (de) * 1992-12-12 1994-06-16 Hoechst Ag Hochreines Perfluor-(4-methyl-2-penten), seine Herstellung und Verwendung
US5352785A (en) * 1993-03-30 1994-10-04 Minnesota Mining And Manufacturing Company Continuous process for purifying perfluorochemical compositions
WO1996023752A1 (fr) * 1995-02-01 1996-08-08 E.I. Du Pont De Nemours And Company SEPARATION ET ELIMINATION DES IMPURETES DE 1,1,1-TRIFLUOROETHANE (HFC-143a) PAR DISTILLATION EXTRACTIVE
GB0021618D0 (en) 2000-09-02 2000-10-18 Ici Plc Production of hydrofluoroalkanes
WO2011052559A1 (fr) * 2009-10-27 2011-05-05 昭和電工株式会社 Procédé de purification d'un composé fluoré

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321383A (en) * 1963-11-07 1967-05-23 Hoechst Ag Process for eliminating fluorinated halogen butenes from 2, 2, 2-trifluo-ro-1-chloro-1-bromo-ethane
EP0002098A1 (fr) * 1977-11-10 1979-05-30 E.I. Du Pont De Nemours And Company Elimination de perfluoroisobutylène

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH459991A (de) * 1964-12-30 1968-07-31 Ciba Geigy Verfahren zur Trennung von Gemischen von cycloaliphatischen Fluorverbindungen
US4766261A (en) * 1984-09-17 1988-08-23 Adamantech, Inc. Purification of fluorocarbons

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321383A (en) * 1963-11-07 1967-05-23 Hoechst Ag Process for eliminating fluorinated halogen butenes from 2, 2, 2-trifluo-ro-1-chloro-1-bromo-ethane
EP0002098A1 (fr) * 1977-11-10 1979-05-30 E.I. Du Pont De Nemours And Company Elimination de perfluoroisobutylène

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Volume 68, No. 3, 12 117k, issued 15 January 1968, (Columbus, Ohio, U.S.A.), A. SCIPIONI et al., "Reactivity of Fluorochloroethane Towards Alcohols"; & ANN. CHIM. (Rome), 57(7), 817-24 (1967), see page 1139. *

Also Published As

Publication number Publication date
ZA908743B (en) 1992-06-24
AU6728190A (en) 1991-05-31
US4973774A (en) 1990-11-27
CN1051348A (zh) 1991-05-15
WO1991006521A2 (fr) 1991-05-16

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