DE2961620D1 - Process for separating hydrogen fluoride from its mixtures with 1-chloro-1,1-difluoroethane - Google Patents

Process for separating hydrogen fluoride from its mixtures with 1-chloro-1,1-difluoroethane

Info

Publication number
DE2961620D1
DE2961620D1 DE7979200010T DE2961620T DE2961620D1 DE 2961620 D1 DE2961620 D1 DE 2961620D1 DE 7979200010 T DE7979200010 T DE 7979200010T DE 2961620 T DE2961620 T DE 2961620T DE 2961620 D1 DE2961620 D1 DE 2961620D1
Authority
DE
Germany
Prior art keywords
difluoroethane
chloro
mixtures
hydrogen fluoride
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
DE7979200010T
Other languages
German (de)
English (en)
Inventor
Robert Lorquet
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
Application granted granted Critical
Publication of DE2961620D1 publication Critical patent/DE2961620D1/de
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)
DE7979200010T 1978-01-13 1979-01-09 Process for separating hydrogen fluoride from its mixtures with 1-chloro-1,1-difluoroethane Expired DE2961620D1 (en)

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
DE2961620D1 true DE2961620D1 (en) 1982-02-18

Family

ID=9203582

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979200010T Expired DE2961620D1 (en) 1978-01-13 1979-01-09 Process for separating hydrogen fluoride from its mixtures with 1-chloro-1,1-difluoroethane

Country Status (6)

Country Link
US (1) US4209470A (US06826419-20041130-M00005.png)
EP (1) EP0003147B1 (US06826419-20041130-M00005.png)
JP (1) JPS54100302A (US06826419-20041130-M00005.png)
DE (1) DE2961620D1 (US06826419-20041130-M00005.png)
ES (1) ES476783A1 (US06826419-20041130-M00005.png)
FR (1) FR2414475A1 (US06826419-20041130-M00005.png)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3362972D1 (en) * 1982-06-08 1986-05-22 Pennwalt Corp 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
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
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
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
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
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.
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
ATE208359T1 (de) 1996-08-27 2001-11-15 Daikin Ind Ltd Verfahren zur herstellung von difluormethan
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
US6673264B2 (en) * 2001-06-01 2004-01-06 Honeywell International Inc. Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride
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 (US06826419-20041130-M00005.png) 1970-07-28 1975-03-06
JPS49117408A (US06826419-20041130-M00005.png) * 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
EP0003147A1 (fr) 1979-07-25
JPH0114210B2 (US06826419-20041130-M00005.png) 1989-03-10
EP0003147B1 (fr) 1981-12-30
US4209470A (en) 1980-06-24
FR2414475B1 (US06826419-20041130-M00005.png) 1980-08-22
FR2414475A1 (fr) 1979-08-10
ES476783A1 (es) 1979-05-16
JPS54100302A (en) 1979-08-08

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: SOLVAY (S.A.), BRUESSEL/BRUXELLES, BE

8328 Change in the person/name/address of the agent

Free format text: LEDERER, KELLER & RIEDERER, 80538 MUENCHEN