ES476783A1 - Procedimiento para separar fluoruro de hidrogeno de sus mez-clas con 1-cloro-1, 1-difluoroetano - Google Patents

Procedimiento para separar fluoruro de hidrogeno de sus mez-clas con 1-cloro-1, 1-difluoroetano

Info

Publication number
ES476783A1
ES476783A1 ES476783A ES476783A ES476783A1 ES 476783 A1 ES476783 A1 ES 476783A1 ES 476783 A ES476783 A ES 476783A ES 476783 A ES476783 A ES 476783A ES 476783 A1 ES476783 A1 ES 476783A1
Authority
ES
Spain
Prior art keywords
hydrogen fluoride
difluoroethane
chloro
mixtures
separating hydrogen
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
Application number
ES476783A
Other languages
English (en)
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.)
Solvay SA
Original Assignee
Solvay 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
Application filed by Solvay SA filed Critical Solvay SA
Publication of ES476783A1 publication Critical patent/ES476783A1/es
Expired 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
    • 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

Landscapes

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

Abstract

Procedimiento para separar fluoruro de hidrógeno de sus mezclas con 1-cloro-1,1-difluoroetano, según el cual se somete la mezcla líquida a una separación por decantación de manera que se obtenga una fase orgánica líquida, enriquecida en 1-cloro-1,1-difluoroetano, y una fase inorgánica líquida, enriquecida en fluoruro de hidrógeno, caracterizado porque se añade a la mezcla un líquido que contiene un tercer disolvente elegido entre 1,1-dicloro-1-fluoroetano, cloruro de vinilideno, 1,1,1-tricloroetano, y sus mezclas, antes de someterla a la decantación.
ES476783A 1978-01-13 1979-01-12 Procedimiento para separar fluoruro de hidrogeno de sus mez-clas con 1-cloro-1, 1-difluoroetano Expired ES476783A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7801309A FR2414475A1 (fr) 1978-01-13 1978-01-13 Procede pour la separation du fluorure d'hydrogene de ses melanges avec le 1-chloro-1, 1-difluorethane

Publications (1)

Publication Number Publication Date
ES476783A1 true ES476783A1 (es) 1979-05-16

Family

ID=9203582

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476783A Expired ES476783A1 (es) 1978-01-13 1979-01-12 Procedimiento para separar fluoruro de hidrogeno de sus mez-clas con 1-cloro-1, 1-difluoroetano

Country Status (6)

Country Link
US (1) US4209470A (es)
EP (1) EP0003147B1 (es)
JP (1) JPS54100302A (es)
DE (1) DE2961620D1 (es)
ES (1) ES476783A1 (es)
FR (1) FR2414475A1 (es)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098341B1 (en) * 1982-06-08 1986-04-16 Pennwalt Corporation Anhydrous phase separation for recovering hydrogen fluoride from a fluorination reaction
US4886581A (en) * 1986-07-03 1989-12-12 Daikin Industries Ltd. Removal of hydrogen fluoride from 2,2,3,3-tetra-fluorooxetane
US4663485A (en) * 1986-07-22 1987-05-05 Celanese Corporation Process for purifying 4-hydroxyacetophenone
US4911792A (en) * 1988-08-01 1990-03-27 E. I. Du Pont De Nemours And Company Process for the separation of HF via phase separation and distillation
US4944846A (en) * 1988-08-01 1990-07-31 E. I. Dupont De Nemours And Company Process for the separation of HF via Azeotropic distillation
US5094773A (en) * 1988-08-01 1992-03-10 E. I. Du Pont De Nemours And Company Azeotropes of HF and process for the separation of HF via azeotropic distillation
US4975156A (en) * 1989-05-04 1990-12-04 Atochem North America, Inc. Process for the separation of hydrogen fluoride, 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane from liquid mixtures thereof
US4948479A (en) * 1989-06-07 1990-08-14 Atochem North America, Inc. Removal of unsaturated carbon compounds from 1,1-dichloro-1-fluoroethane
DE69031344D1 (de) 1989-10-04 1997-10-02 Du Pont Verfahren zur reinigung von fluorkohlenwasserstoffen
US5401430A (en) * 1991-04-15 1995-03-28 Daikin Industries, Ltd. Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane
DE69213771T2 (de) * 1991-04-15 1997-02-20 Daikin Ind Ltd Verfahren zur Reinigung von 1,1,1-Trifluoro-2-Chlorethan
FR2675496B1 (fr) * 1991-04-17 1993-09-03 Atochem Procede de separation du fluorure d'hydrogene de ses melanges avec le 1,1,1-trifluoro-2-chloroethane.
US5276225A (en) * 1991-04-17 1994-01-04 Elf Atochem S.A. Process for separating hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane
US5208398A (en) * 1992-04-16 1993-05-04 Elf Atochem N.A., Inc. HF extraction of R365 from R141B
FR2695386B1 (fr) * 1992-09-10 1994-10-14 Atochem Elf Sa Procédé de séparation de fluorure d'hydrogène de ses mélanges avec le 1,1,1-trifluoro-2-chloroéthane.
IT1256631B (it) * 1992-12-10 1995-12-12 Ausimont Spa Procedimento per la separazione di hf da sue miscele con gli idroclorofluorcarburi 123 e/o 124
US5336816A (en) * 1992-12-17 1994-08-09 Laroche Chemicals, Inc. Method for preparing 1,1-dichloro-1-fluoroethane
BE1006962A3 (fr) * 1993-04-01 1995-02-07 Solvay Compositions azeotropiques comprenant de l'eau et un hydrofluorocarbure, procede d'elimination d'eau d'une solution par distillation azeotropique et procede de production d'un hydrofluoroalcane.
US5632966A (en) * 1996-03-07 1997-05-27 Alliedsignal Inc. Process for hydrogen fluoride separation
US5853550A (en) * 1996-04-12 1998-12-29 E. I. Du Pont De Nemours And Company Process for separating tar from a reaction mixture
US5766483A (en) * 1996-05-10 1998-06-16 Alliedsignal Inc. Process for hydrogen fluoride separation
US5948381A (en) * 1996-07-03 1999-09-07 Alliedsignal Inc. Process for separating fluorocarbon compounds
ES2167771T3 (es) 1996-08-27 2002-05-16 Daikin Ind Ltd Procedimiento de fabricacion de difluorometano.
FR2768717B1 (fr) * 1997-09-24 1999-11-12 Solvay Procede de separation de fluorure d'hydrogene de ses melanges avec un hydrofluoroalcane contenant de 3 a 6 atomes de carbone
JP4511827B2 (ja) * 2001-06-01 2010-07-28 ハネウェル・インターナショナル・インコーポレーテッド １，１，１，３，３−ペンタフルオロブタンと弗化水素との共沸混合物様組成物
US7371363B2 (en) * 2003-07-15 2008-05-13 Honeywell International Inc. Methods of purifying hydrogen fluoride

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640086A (en) 1951-12-15 1953-05-26 Du Pont Process for separating hydrogen fluoride from chlorodifluoromethane
US2894044A (en) * 1956-02-16 1959-07-07 Monsanto Chemicals Preparation of 1, 1-dichloro-1-fluoroethane
US3442961A (en) * 1967-05-03 1969-05-06 Du Pont Separation of hydrogen chloride from vinylidene fluoride
US3696156A (en) * 1970-04-03 1972-10-03 Du Pont Process for purification of fluoroperhalocarbons
JPS505681B1 (es) 1970-07-28 1975-03-06
JPS49117408A (es) * 1973-03-20 1974-11-09
US3873629A (en) * 1974-01-23 1975-03-25 Du Pont Separation of chlorodifluoromethane and hydrogen
US4157380A (en) * 1976-11-26 1979-06-05 Prahl Walter H Recovery of hydrogen chloride and chlorine from chlorine-containing organic wastes
US4102981A (en) * 1977-08-22 1978-07-25 Kaiser Aluminum & Chemical Corporation Removal of acidic impurity from chlorofluoromethanes

Also Published As

Publication number Publication date
FR2414475A1 (fr) 1979-08-10
US4209470A (en) 1980-06-24
JPS54100302A (en) 1979-08-08
EP0003147B1 (fr) 1981-12-30
FR2414475B1 (es) 1980-08-22
JPH0114210B2 (es) 1989-03-10
DE2961620D1 (en) 1982-02-18
EP0003147A1 (fr) 1979-07-25

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