FR2629811B1 - PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION

Info

Publication number
FR2629811B1
FR2629811B1 FR8804739A FR8804739A FR2629811B1 FR 2629811 B1 FR2629811 B1 FR 2629811B1 FR 8804739 A FR8804739 A FR 8804739A FR 8804739 A FR8804739 A FR 8804739A FR 2629811 B1 FR2629811 B1 FR 2629811B1
Authority
FR
France
Prior art keywords
acid solution
implementation
obtaining
fluorhydric
hexafluorosilicic
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 - Fee Related
Application number
FR8804739A
Other languages
French (fr)
Other versions
FR2629811A1 (en
Inventor
Richard Parent
Remy Audinos
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.)
PARENT ETS
Original Assignee
PARENT ETS
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 PARENT ETS filed Critical PARENT ETS
Priority to FR8804739A priority Critical patent/FR2629811B1/en
Publication of FR2629811A1 publication Critical patent/FR2629811A1/en
Application granted granted Critical
Publication of FR2629811B1 publication Critical patent/FR2629811B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C01B7/193—Preparation from silicon tetrafluoride, fluosilicic acid or fluosilicates
    • 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
    • C01B7/194—Preparation from ammonium fluoride
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/245—Fluorine; Compounds thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
FR8804739A 1988-04-06 1988-04-06 PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION Expired - Fee Related FR2629811B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8804739A FR2629811B1 (en) 1988-04-06 1988-04-06 PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8804739A FR2629811B1 (en) 1988-04-06 1988-04-06 PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION

Publications (2)

Publication Number Publication Date
FR2629811A1 FR2629811A1 (en) 1989-10-13
FR2629811B1 true FR2629811B1 (en) 1991-05-17

Family

ID=9365161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8804739A Expired - Fee Related FR2629811B1 (en) 1988-04-06 1988-04-06 PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION

Country Status (1)

Country Link
FR (1) FR2629811B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720061B1 (en) * 1994-05-20 1996-08-02 Rhone Poulenc Chimie Process for upgrading an acidic liquid effluent containing heavy metals.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450609A (en) * 1966-03-14 1969-06-17 Ppg Industries Inc Electrolytic process for preparing hydrogen fluoride
US4389293A (en) * 1982-01-04 1983-06-21 Allied Corporation Process for the recovery of anhydrous hydrogen fluoride from aqueous solutions of fluosilicic acid and hydrogen fluoride
US4599156A (en) * 1985-09-27 1986-07-08 International Minerals & Chemical Corp. Electrodialysis process for preparing hydrogen fluoride

Also Published As

Publication number Publication date
FR2629811A1 (en) 1989-10-13

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Legal Events

Date Code Title Description
ST Notification of lapse