AU1497192A - Process for separating hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane - Google Patents

Process for separating hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane

Info

Publication number
AU1497192A
AU1497192A AU14971/92A AU1497192A AU1497192A AU 1497192 A AU1497192 A AU 1497192A AU 14971/92 A AU14971/92 A AU 14971/92A AU 1497192 A AU1497192 A AU 1497192A AU 1497192 A AU1497192 A AU 1497192A
Authority
AU
Australia
Prior art keywords
chloroethane
trifluoro
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.)
Granted
Application number
AU14971/92A
Other versions
AU650333B2 (en
Inventor
Bernard Berthe
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
Application filed by Elf Atochem SA filed Critical Elf Atochem SA
Publication of AU1497192A publication Critical patent/AU1497192A/en
Application granted granted Critical
Publication of AU650333B2 publication Critical patent/AU650333B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

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

Abstract

Separation of hydrogen fluoride (HF) from its mixtures with 1,1,1-trifluoro-2-chloroethane (F133a). By settling the mixture of HF and F133a at a temperature below 0 DEG C, there is obtained a lower organic phase which is poor in HF and an upper phase which is rich in HF. The latter can be directly recycled to the fluorination reactor or subjected to a distillation to separate the HF/F133a azeotrope at the head, which is sent back to the settler, and to recover practically pure HF at the base. By distillation of the lower phase, the HF/F133a azeotrope is separated at the head, which is sent back to the settler, and F133a is recovered at the base.
AU14971/92A 1991-04-17 1992-04-16 Process for separating hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane Ceased AU650333B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104736A FR2675496B1 (en) 1991-04-17 1991-04-17 PROCESS FOR SEPARATING HYDROGEN FLUORIDE FROM ITS MIXTURES WITH 1,1,1-TRIFLUORO-2-CHLOROETHANE.
FR9104736 1991-04-17

Publications (2)

Publication Number Publication Date
AU1497192A true AU1497192A (en) 1992-10-22
AU650333B2 AU650333B2 (en) 1994-06-16

Family

ID=9411958

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14971/92A Ceased AU650333B2 (en) 1991-04-17 1992-04-16 Process for separating hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane

Country Status (9)

Country Link
EP (1) EP0509885B1 (en)
JP (1) JPH06135867A (en)
AT (1) ATE139513T1 (en)
AU (1) AU650333B2 (en)
CA (1) CA2065952A1 (en)
ES (1) ES2088114T3 (en)
FR (1) FR2675496B1 (en)
GR (1) GR3020642T3 (en)
MX (1) MX9201720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU723171B2 (en) * 1996-01-23 2000-08-17 Daikin Industries, Ltd. Azeotropic comprising pentafluoropropane and hydrogen fluoride and method for separating and purifying pentafluoropropane

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5401430A (en) * 1991-04-15 1995-03-28 Daikin Industries, Ltd. Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane
CA2082844A1 (en) * 1991-11-15 1993-05-16 Wolfgang Dukat Process for the separation of a mixture containing hydrogen fluoride and 1-chloro-2,2,2-trifluoroethane
FR2695386B1 (en) * 1992-09-10 1994-10-14 Atochem Elf Sa Process for the separation of hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane.
GB9305148D0 (en) * 1993-03-12 1993-04-28 Ici Plc Hydrogen fluoride recovery process
US5800795A (en) * 1993-03-12 1998-09-01 Imperial Chemical Industries Plc Hydrogen fluoride recovery process
US6211135B1 (en) * 1998-04-03 2001-04-03 E. I. Du Pont De Nemours And Company Processes for the purification and use of 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane and azeotropes thereof with HF
EP1066230B1 (en) 1998-04-03 2003-09-10 E.I. Du Pont De Nemours And Company Processes for the purification and use of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane and azeotropes thereof with hf
WO2000069797A1 (en) * 1999-05-18 2000-11-23 Ineos Fluor Holdings Limited Production of 1,1,1,2,3,3,3-heptafluoropropane
EP2433921B1 (en) * 2006-08-24 2014-01-15 E. I. du Pont de Nemours and Company Processes for separation of fluoroolefins from hydrogen fluoride by azeotropic distillation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414475A1 (en) * 1978-01-13 1979-08-10 Solvay PROCESS FOR THE SEPARATION OF HYDROGEN FLUORIDE FROM ITS MIXTURES WITH 1-CHLORO-1, 1-DIFLUORETHANE
DE3362972D1 (en) * 1982-06-08 1986-05-22 Pennwalt Corp Anhydrous phase separation for recovering hydrogen fluoride from a fluorination reaction
US4911797A (en) * 1983-06-24 1990-03-27 American Cyanamid Company Contact roller mounting assembly and tensioning mechanism for electroplating fiber
US4944846A (en) * 1988-08-01 1990-07-31 E. I. Dupont De Nemours And Company 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
JP3175286B2 (en) * 1991-04-15 2001-06-11 ダイキン工業株式会社 An azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane and a method for purifying 1,1,1-trifluoro-2-chloroethane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU723171B2 (en) * 1996-01-23 2000-08-17 Daikin Industries, Ltd. Azeotropic comprising pentafluoropropane and hydrogen fluoride and method for separating and purifying pentafluoropropane

Also Published As

Publication number Publication date
EP0509885B1 (en) 1996-06-19
FR2675496A1 (en) 1992-10-23
FR2675496B1 (en) 1993-09-03
ATE139513T1 (en) 1996-07-15
MX9201720A (en) 1992-10-01
GR3020642T3 (en) 1996-10-31
CA2065952A1 (en) 1992-10-18
JPH06135867A (en) 1994-05-17
ES2088114T3 (en) 1996-08-01
EP0509885A2 (en) 1992-10-21
AU650333B2 (en) 1994-06-16
EP0509885A3 (en) 1992-12-09

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired