ES2132050T1 - Proceso para separar diclorodifluorometano. - Google Patents

Proceso para separar diclorodifluorometano.

Info

Publication number
ES2132050T1
ES2132050T1 ES97927695T ES97927695T ES2132050T1 ES 2132050 T1 ES2132050 T1 ES 2132050T1 ES 97927695 T ES97927695 T ES 97927695T ES 97927695 T ES97927695 T ES 97927695T ES 2132050 T1 ES2132050 T1 ES 2132050T1
Authority
ES
Spain
Prior art keywords
dichlorodifluoromethane
separate
difluoromethane
presented
separation
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.)
Pending
Application number
ES97927695T
Other languages
English (en)
Inventor
Gustavo Cerri
Kin Ching Kong
Charles Frances Swain
Rajat Subhra Basu
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.)
Honeywell International Inc
Original Assignee
AlliedSignal Inc
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 AlliedSignal Inc filed Critical AlliedSignal Inc
Publication of ES2132050T1 publication Critical patent/ES2132050T1/es
Pending 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
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • 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
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

EN LA PRESENTE INVENCION SE PRESENTA UN PROCEDIMIENTO PARA LA SEPARACION DE DICLORODIFLUOROMETANO DEL DIFLUOROMETANO. ESPECIFICAMENTE SE PRESENTA UN PROCEDIMIENTO PARA LA SEPARACION DE DICLORODIFLUOROMETANO Y DIFLUOROMETANO MEDIANTE UNA DESTILACION AZEOTROPICA.
ES97927695T 1996-05-23 1997-05-22 Proceso para separar diclorodifluorometano. Pending ES2132050T1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/652,891 US5785822A (en) 1996-05-23 1996-05-23 Process for separating difluoromethane

Publications (1)

Publication Number Publication Date
ES2132050T1 true ES2132050T1 (es) 1999-08-16

Family

ID=24618631

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97927695T Pending ES2132050T1 (es) 1996-05-23 1997-05-22 Proceso para separar diclorodifluorometano.

Country Status (5)

Country Link
US (1) US5785822A (es)
EP (1) EP0912476A1 (es)
DE (1) DE912476T1 (es)
ES (1) ES2132050T1 (es)
WO (1) WO1997044301A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998008790A1 (fr) * 1996-08-27 1998-03-05 Daikin Industries, Ltd. Procede de fabrication de difluoromethane
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
US7179949B2 (en) * 2000-08-10 2007-02-20 Solvay (Societe Anonyme) Process for obtaining a purified hydrofluoroalkane
US6500795B2 (en) * 2001-01-24 2002-12-31 Honeywell International Inc. Azeotrope-like composition of 1-chloro-1,3,3,3-tetrafluoropropane and hydrogen fluoride
US7189311B2 (en) * 2001-03-23 2007-03-13 Honeywell International Inc. Purification of difluoromethane
US7585280B2 (en) * 2004-12-29 2009-09-08 Codman & Shurtleff, Inc. System and method for measuring the pressure of a fluid system within a patient

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0467531T3 (da) * 1990-07-04 1994-10-31 Ici Plc Fremgangsmåde til adskillelse af 1,1,1,2-tetrafluorethan fra blandinger deraf med hydrogenfluorid og/eller 1-chlor-2,2-difluorethylen
BR9305484A (pt) * 1992-04-13 1995-04-11 Daikin Ind Ltd Processo para remoção de fluoreto de hidrogênio.
JPH0733691A (ja) * 1993-07-21 1995-02-03 Showa Denko Kk ジフルオロメタンの製造方法
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

Also Published As

Publication number Publication date
EP0912476A1 (en) 1999-05-06
US5785822A (en) 1998-07-28
WO1997044301A1 (en) 1997-11-27
DE912476T1 (de) 1999-11-04

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