GB1141260A - A method and apparatus for the purification of hydrofluoric acid - Google Patents

A method and apparatus for the purification of hydrofluoric acid

Info

Publication number
GB1141260A
GB1141260A GB5136766A GB5136766A GB1141260A GB 1141260 A GB1141260 A GB 1141260A GB 5136766 A GB5136766 A GB 5136766A GB 5136766 A GB5136766 A GB 5136766A GB 1141260 A GB1141260 A GB 1141260A
Authority
GB
United Kingdom
Prior art keywords
hydrofluoric acid
complex
nov
fluorine
alkali metal
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
GB5136766A
Inventor
Jacques Gillardeau
Yves Macheteau
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1141260A publication Critical patent/GB1141260A/en
Expired 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

Landscapes

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

Abstract

1,141,260. Hydrofluoric acid. COMMISSARIAT A L'ENERGIE ATOMIQUE. 16 Nov., 1966 [26 Nov., 1965], No. 51367/66. Heading C1A. Hydrofluoric acid is purified by successively dehydrating it by treatment with fluorine, condensing it and removing uncondensed gases, contacting it with an alkali metal fluoride to form a solid complex, removing the uncombined impurities, and heating the complex to liberate the purified acid. Fluorine is preferably employed in excess. The alkali metal halide is preferably granular sodium fluoride. The complex NaF.HF is preferably decomposed at 280-300‹. A vacuum line apparatus for the above process is described and illustrated.
GB5136766A 1965-11-26 1966-11-16 A method and apparatus for the purification of hydrofluoric acid Expired GB1141260A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR40014A FR1492808A (en) 1965-11-26 1965-11-26 Process for obtaining very high purity hydrofluoric acid and apparatus for carrying out the process or a similar process

Publications (1)

Publication Number Publication Date
GB1141260A true GB1141260A (en) 1969-01-29

Family

ID=8593601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5136766A Expired GB1141260A (en) 1965-11-26 1966-11-16 A method and apparatus for the purification of hydrofluoric acid

Country Status (6)

Country Link
BE (1) BE689815A (en)
CH (1) CH466242A (en)
ES (1) ES333774A1 (en)
FR (1) FR1492808A (en)
GB (1) GB1141260A (en)
LU (1) LU52410A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668497A (en) * 1984-12-25 1987-05-26 Hashimoto Chemical Industries Co., Ltd. Process for purifying hydrogen fluoride
US5362469A (en) * 1991-10-31 1994-11-08 Solvay Fluor Und Derivate Gmbh Preparation of ultrapure hydrogen fluoride
US5800795A (en) * 1993-03-12 1998-09-01 Imperial Chemical Industries Plc Hydrogen fluoride recovery process
US6555086B2 (en) 1997-04-09 2003-04-29 Ineos Fluor Holdings Limited Hydrogen fluoride recovery process
US6660893B2 (en) 1995-10-10 2003-12-09 Ineca Fluor Holdings Limited Hydrogen fluoride recovery process
RU2534252C1 (en) * 2013-05-07 2014-11-27 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Method of hydrogen fluoride purification

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491570A (en) * 1984-05-03 1985-01-01 Pennwalt Corporation Removal of arsenic from hydrogen fluoride

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668497A (en) * 1984-12-25 1987-05-26 Hashimoto Chemical Industries Co., Ltd. Process for purifying hydrogen fluoride
US5362469A (en) * 1991-10-31 1994-11-08 Solvay Fluor Und Derivate Gmbh Preparation of ultrapure hydrogen fluoride
US5800795A (en) * 1993-03-12 1998-09-01 Imperial Chemical Industries Plc Hydrogen fluoride recovery process
US6660893B2 (en) 1995-10-10 2003-12-09 Ineca Fluor Holdings Limited Hydrogen fluoride recovery process
US6555086B2 (en) 1997-04-09 2003-04-29 Ineos Fluor Holdings Limited Hydrogen fluoride recovery process
RU2534252C1 (en) * 2013-05-07 2014-11-27 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Method of hydrogen fluoride purification

Also Published As

Publication number Publication date
BE689815A (en) 1967-05-02
CH466242A (en) 1968-12-15
LU52410A1 (en) 1967-01-23
FR1492808A (en) 1967-08-25
ES333774A1 (en) 1967-12-16

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