FR2304691A1 - Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides - Google Patents

Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides

Info

Publication number
FR2304691A1
FR2304691A1 FR7509564A FR7509564A FR2304691A1 FR 2304691 A1 FR2304691 A1 FR 2304691A1 FR 7509564 A FR7509564 A FR 7509564A FR 7509564 A FR7509564 A FR 7509564A FR 2304691 A1 FR2304691 A1 FR 2304691A1
Authority
FR
France
Prior art keywords
prodn
electrolyte
nh4f
cell
mixture
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
FR7509564A
Other languages
French (fr)
Other versions
FR2304691B1 (en
Inventor
Robert Faron
Annie Cathala
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.)
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann 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 Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Priority to FR7509564A priority Critical patent/FR2304691A1/en
Priority to FR7607582A priority patent/FR2343821A2/en
Priority to US05/666,495 priority patent/US4139447A/en
Priority to DE7608249U priority patent/DE7608249U1/en
Priority to DE2611324A priority patent/DE2611324C3/en
Priority to ZA761648A priority patent/ZA761648B/en
Priority to AU12152/76A priority patent/AU500280B2/en
Priority to CA248,418A priority patent/CA1079222A/en
Priority to IT21361/76A priority patent/IT1089601B/en
Priority to GB11241/76A priority patent/GB1498306A/en
Priority to JP51031155A priority patent/JPS51142494A/en
Publication of FR2304691A1 publication Critical patent/FR2304691A1/en
Priority to US05/957,447 priority patent/US4176018A/en
Application granted granted Critical
Publication of FR2304691B1 publication Critical patent/FR2304691B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Electrolytic cell for F2 prodn. contains bipolar electrode(s) with the mono-polar electrodes connected to a D.C. power source. The electrolyte consists of an anhydrous mixture of mineral fluorides with HF. This can be a mixture of NH4F and HF, or up to 80% of the molecular content of NH4F can be replaced mole for mole by an alkaline fluoride e.g. KF. The proportions of HF is varied according to the relative amount of KF and NH4F in the mixture. The bipolar electrodes are made from carbon or metal or can be a composite of carbon or metal. The walls are made from an insulating material and are in contact with the electrolyte and the gases separated from it. This can be a plastic e.g. polymethyl -acrylate, polycarbonate, fluoro-hydrocarbon, (e.g. (PTFE) or a chloro-fluoro-hydrocarbon (e.g. (PTFCE) or polypropylene and polyethylene. For the prodn. of F2 e.g. for use in U purification. Existing cells involve danger of contaminationofH2 and F2 to give explosive mixtures, also the corrosive attack of the cells. The cell overcomes or avoids these problems and reduces the contamination of the F2 produced with H2 and HF.
FR7509564A 1975-03-21 1975-03-21 Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides Granted FR2304691A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7509564A FR2304691A1 (en) 1975-03-21 1975-03-21 Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides
FR7607582A FR2343821A2 (en) 1975-03-21 1976-02-25 PERFECTED ELECTROLYZER FOR THE INDUSTRIAL PREPARATION OF FLUORINE
US05/666,495 US4139447A (en) 1975-03-21 1976-03-12 Electrolyzer for industrial production of fluorine
DE2611324A DE2611324C3 (en) 1975-03-21 1976-03-17 Electrolysis cell for the production of fluorine
ZA761648A ZA761648B (en) 1975-03-21 1976-03-17 New electrolyser for industrial production of fluorine
DE7608249U DE7608249U1 (en) 1975-03-21 1976-03-17 ELECTROLYSIS CELL FOR THE TECHNICAL PRESENTATION OF FLUORINE
AU12152/76A AU500280B2 (en) 1975-03-21 1976-03-18 Electrolytic production of fluorine
CA248,418A CA1079222A (en) 1975-03-21 1976-03-18 Electrolitie cell for the industrial production of fluorine
IT21361/76A IT1089601B (en) 1975-03-21 1976-03-18 ELECTROLIZER FOR FLUOR PRODUCTION AND RELATED PROCEDURE
GB11241/76A GB1498306A (en) 1975-03-21 1976-03-19 Electrolytic process for fluorine production
JP51031155A JPS51142494A (en) 1975-03-21 1976-03-22 Electrolytic cell for manufacture of elementary fluorine
US05/957,447 US4176018A (en) 1975-03-21 1978-11-03 Electrolyte and process for electrolytic production of fluorine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7509564A FR2304691A1 (en) 1975-03-21 1975-03-21 Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides

Publications (2)

Publication Number Publication Date
FR2304691A1 true FR2304691A1 (en) 1976-10-15
FR2304691B1 FR2304691B1 (en) 1979-04-13

Family

ID=9153152

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7509564A Granted FR2304691A1 (en) 1975-03-21 1975-03-21 Electrolytic cell for fluorine prodn - having bipolar cell(s) with diaphragms and electrolyte of anhydrous fluorides

Country Status (2)

Country Link
FR (1) FR2304691A1 (en)
ZA (1) ZA761648B (en)

Also Published As

Publication number Publication date
FR2304691B1 (en) 1979-04-13
ZA761648B (en) 1977-04-27

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Legal Events

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TP Transmission of property
ST Notification of lapse