ES2110293T3 - Procedimiento para la separacion de fluoruro de hidrogeno y de difluormetano. - Google Patents

Procedimiento para la separacion de fluoruro de hidrogeno y de difluormetano.

Info

Publication number
ES2110293T3
ES2110293T3 ES95400126T ES95400126T ES2110293T3 ES 2110293 T3 ES2110293 T3 ES 2110293T3 ES 95400126 T ES95400126 T ES 95400126T ES 95400126 T ES95400126 T ES 95400126T ES 2110293 T3 ES2110293 T3 ES 2110293T3
Authority
ES
Spain
Prior art keywords
separation
hydrogen fluoride
difluormethane
procedure
flow
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.)
Expired - Lifetime
Application number
ES95400126T
Other languages
English (en)
Other versions
ES2110293T5 (es
Inventor
Jean-Michel Galland
Dominique Rouzies
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.)
Arkema France SA
Original Assignee
Elf Atochem SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9460466&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2110293(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elf Atochem SA filed Critical Elf Atochem SA
Publication of ES2110293T3 publication Critical patent/ES2110293T3/es
Application granted granted Critical
Publication of ES2110293T5 publication Critical patent/ES2110293T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • 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
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine

Landscapes

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

Abstract

LA INVENCION SE REFIERE ALA SEPARACION DEL FLUORURO DE HIDROGENO (HF) Y DEL DIFLUOROMETANO (F32) POR DESTILACION Y/O CONDENSACION FRACCIONADA, EN UNA O VARIAS ETAPAS. EL PROCESO SEGUN LA INVENCION COMPRENDE AL MENOS UNA ETAPA QUE PERMITE OBTENER UN FLUJO CUYOS CONTENIDOS EN HF Y F32 CORRESPONDEN SENSIBLEMENTE A LOS DE LA COMPOSICION AZEOTROPICA, EFECTUANDOSE ESTA ETAPA BAJO UNA PRESION ELEGIDA DE MANERA TAL QUE LA PRESION PARCIAL DE LA MEZCLA HF + F32 DE DICHO FLUJO (PA EN BARES ABSOLUTOS) ESTE LIGADA AL CONTENIDO EN HF DE DICHA MEZCLA (X EN PORCENTAJE EN PESO) POR LA SIGUIENTE RELACION: PA = 17 22,9 (X+0,821) IN(X + 0,608) + 56,6 [LN(X+0,608)]2
ES95400126T 1994-02-28 1995-01-23 Procedimiento para la separacion de fluoruro de hidrogeno y de difluormetano. Expired - Lifetime ES2110293T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9402231 1994-02-28
FR9402231 1994-02-28

Publications (2)

Publication Number Publication Date
ES2110293T3 true ES2110293T3 (es) 1998-02-01
ES2110293T5 ES2110293T5 (es) 2008-01-16

Family

ID=9460466

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95400126T Expired - Lifetime ES2110293T5 (es) 1994-02-28 1995-01-23 Procedimiento para la separacion de fluoruro de hidrogeno y de difluormetano.

Country Status (10)

Country Link
US (1) US5707497A (es)
EP (1) EP0669303B2 (es)
JP (1) JP3279449B2 (es)
KR (1) KR100328104B1 (es)
CN (1) CN1061023C (es)
AU (1) AU697339B2 (es)
CA (1) CA2143268C (es)
DE (1) DE69500938T2 (es)
ES (1) ES2110293T5 (es)
GR (1) GR3025865T3 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6676809B1 (en) 1992-02-07 2004-01-13 Daikin Industries Ltd. Process for removal of hydrogen fluoride
US5523015A (en) * 1992-04-13 1996-06-04 Daikin Industries Ltd. Azeotropes of hydrogen fluoride with dichloromethane, difluoromethane and chlorofluoromethane
US6755942B1 (en) 1995-08-01 2004-06-29 E. I. Du Pont De Nemours And Company Process for the manufacture of halocarbons and selected compounds and azeotropes with HF
ES2190474T3 (es) 1995-08-01 2003-08-01 Du Pont Proceso para la fabricacion de halocarburos y compuestos seleccionados, y formas azeotropicas con hf.
KR100458671B1 (ko) * 1995-10-10 2005-02-03 이네오스 플루어 홀딩즈 리미티드 플루오르화수소회수방법
US5817893A (en) * 1996-06-18 1998-10-06 E. I. Du Pont De Nemours And Company Processes for the manufacture and purification of 1,1,2,2,3,3,4,4-octafluorobutane and by-products
US6375808B1 (en) * 1996-08-27 2002-04-23 Daikin Industries Ltd. Process for producing difluoromethane
GB9707176D0 (en) 1997-04-09 1997-05-28 Ici Plc Hydrogen fluoride recovery process
US6488817B1 (en) * 1998-03-31 2002-12-03 Alliedsignal Inc. Purification of hydrofluorocarbons
US7189311B2 (en) * 2001-03-23 2007-03-13 Honeywell International Inc. Purification of difluoromethane
US6605193B2 (en) 2001-04-25 2003-08-12 Atofina Chemicals, Inc. Recovery of HFC-32
US7371363B2 (en) * 2003-07-15 2008-05-13 Honeywell International Inc. Methods of purifying hydrogen fluoride
US7273835B2 (en) * 2004-08-04 2007-09-25 Honeywell International Inc. Azeotrope-like compositions of difluoromethane
CN104119201A (zh) * 2014-07-02 2014-10-29 常熟三爱富中昊化工新材料有限公司 一种含氟烷烃的干法分离提纯系统及提纯方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196616A (en) * 1991-10-18 1993-03-23 E. I. Du Pont De Nemours And Company Process for separating and recovering fluorocarbons and hydrogen fluoride from mixtures thereof
US5523015A (en) * 1992-04-13 1996-06-04 Daikin Industries Ltd. Azeotropes of hydrogen fluoride with dichloromethane, difluoromethane and chlorofluoromethane
JP3355533B2 (ja) * 1993-06-07 2002-12-09 昭和電工株式会社 ジフルオロメタンの精製方法
JPH0733691A (ja) * 1993-07-21 1995-02-03 Showa Denko Kk ジフルオロメタンの製造方法
US6274781B1 (en) * 1993-11-01 2001-08-14 E. I. Du Pont De Nemours And Company Production of dihalomethanes containing fluorine and azeotropes of dihalomethanes containing chlorine with HF

Also Published As

Publication number Publication date
CA2143268C (fr) 2005-02-08
DE69500938D1 (de) 1997-12-04
EP0669303A1 (fr) 1995-08-30
AU1225395A (en) 1995-09-07
AU697339B2 (en) 1998-10-01
CN1061023C (zh) 2001-01-24
US5707497A (en) 1998-01-13
CN1112540A (zh) 1995-11-29
CA2143268A1 (fr) 1995-08-29
KR100328104B1 (ko) 2002-07-02
JP3279449B2 (ja) 2002-04-30
EP0669303B1 (fr) 1997-10-29
GR3025865T3 (en) 1998-04-30
DE69500938T2 (de) 1998-04-30
ES2110293T5 (es) 2008-01-16
JPH07258125A (ja) 1995-10-09
EP0669303B2 (fr) 2007-08-08
KR950032033A (ko) 1995-12-20

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