BE643472A - - Google Patents

Info

Publication number
BE643472A
BE643472A BE643472A BE643472A BE643472A BE 643472 A BE643472 A BE 643472A BE 643472 A BE643472 A BE 643472A BE 643472 A BE643472 A BE 643472A BE 643472 A BE643472 A BE 643472A
Authority
BE
Belgium
Application number
BE643472A
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 filed Critical
Publication of BE643472A publication Critical patent/BE643472A/xx

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
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE643472A 1963-02-06 1964-02-06 BE643472A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US256520A US3282801A (en) 1963-02-06 1963-02-06 Extractive distillation of tetrafluoroethylene with an oxygenated hydrocarbon

Publications (1)

Publication Number Publication Date
BE643472A true BE643472A (ja) 1964-08-06

Family

ID=22972533

Family Applications (1)

Application Number Title Priority Date Filing Date
BE643472A BE643472A (ja) 1963-02-06 1964-02-06

Country Status (6)

Country Link
US (1) US3282801A (ja)
BE (1) BE643472A (ja)
DE (1) DE1295543B (ja)
FR (1) FR1381844A (ja)
GB (1) GB1034894A (ja)
NL (2) NL6400982A (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1251300B (de) * 1964-12-29 1967-10-05 E I du Pont de Nemours and Company Wilmington Del (V St A) Verfahren zur Reinigung von Hexa fluorpropylenepoxyd unter Abtrennung von Hexafluorpropylen
CH459991A (de) * 1964-12-30 1968-07-31 Ciba Geigy Verfahren zur Trennung von Gemischen von cycloaliphatischen Fluorverbindungen
BE786675A (fr) * 1971-08-02 1973-01-25 Airco Inc Separation d'oxydes d'alkyle halogenes par distillation azeotropique.
US3989601A (en) * 1975-09-08 1976-11-02 The Dow Chemical Company Purification of 1,1,1-trichloroethane by extractive distillation
DE2638650C2 (de) * 1976-08-27 1982-11-25 Hoechst Ag, 6000 Frankfurt Verfahren zur Abtrennung von Tetrafluoräthylen aus Gasgemischen
US4134796A (en) * 1977-11-17 1979-01-16 Asahi Glass Company Ltd. Method of purifying hexafluoropropylene oxide
FR2409973A1 (fr) * 1977-11-28 1979-06-22 Asahi Glass Co Ltd Procede de purification de l'oxyde d'hexafluoropropylene
DE3729106A1 (de) * 1987-09-01 1989-03-09 Hoechst Ag Verfahren zur gewinnung von reinem tetrafluorethylen
US5049241A (en) * 1990-03-27 1991-09-17 E. I. Du Pont De Nemours And Company Extractive distillation
BR9402038A (pt) * 1993-05-25 1995-03-07 Showa Denko Kk Processo de purificação de pentaflúor etano
KR100348203B1 (ko) * 1994-08-17 2002-09-18 다이낑 고오교 가부시키가이샤 펜타플루오로에탄의제조방법
WO1996023752A1 (en) * 1995-02-01 1996-08-08 E.I. Du Pont De Nemours And Company SEPARATING AND REMOVING IMPURITIES FROM 1,1,1-TRIFLUOROETHANE (HFC-143a) BY USING EXTRACTIVE DISTILLATION
US5626023A (en) * 1995-02-16 1997-05-06 Praxair Technology, Inc. Cryogenic rectification system for fluorine compound recovery using additive liquid
US6047560A (en) * 1997-03-12 2000-04-11 Showa Denko K.K. Process for separating pentafluoroethane and 1,1,1-trifluoroethane

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604439A (en) * 1952-07-22 Distillation of
US2339160A (en) * 1940-08-02 1944-01-11 Shell Dev Distillation process
US2473911A (en) * 1943-07-19 1949-06-21 Ici Ltd Production of fluorocarbons
US2357028A (en) * 1943-08-04 1944-08-29 Shell Dev Solvent extraction process
US2456184A (en) * 1946-04-17 1948-12-14 Du Pont Purification of tetrachlorethylene
FR1293690A (fr) * 1960-04-28 1962-05-18 Du Pont Procédé de distillation extractive de carbures fluorés
NL264123A (ja) * 1960-04-28
US3152051A (en) * 1962-03-12 1964-10-06 Pennsalt Chemicals Corp Separation of a mixture containing tetrafluoroethylene and fluoroform by extractive distillation

Also Published As

Publication number Publication date
FR1381844A (fr) 1964-12-14
NL6400982A (ja) 1964-08-07
GB1034894A (en) 1966-07-06
NL131714C (ja)
DE1295543B (de) 1969-05-22
US3282801A (en) 1966-11-01

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