GB1058581A - Process for obtaining chlorine, sodium hydroxide and hydrogen by the electrolysis of sodium chloride in mercury cells - Google Patents

Process for obtaining chlorine, sodium hydroxide and hydrogen by the electrolysis of sodium chloride in mercury cells

Info

Publication number
GB1058581A
GB1058581A GB3064163A GB3064163A GB1058581A GB 1058581 A GB1058581 A GB 1058581A GB 3064163 A GB3064163 A GB 3064163A GB 3064163 A GB3064163 A GB 3064163A GB 1058581 A GB1058581 A GB 1058581A
Authority
GB
United Kingdom
Prior art keywords
sodium chloride
electrolysis
hydrogen
sodium hydroxide
remove
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
GB3064163A
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
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 Ciba AG filed Critical Ciba AG
Publication of GB1058581A publication Critical patent/GB1058581A/en
Expired 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
    • C25B15/00—Operating or servicing cells
    • C25B15/04—Regulation of the inter-electrode distance
    • 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
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells

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

<PICT:1058581/C6-C7/1> In a process for the production of chlorine, sodium hydroxide, and hydrogen by electrolysis in a mercury cell of aqueous sodium chloride solution crude brine is used as the starting material in the sequence shown, the crude brine being purified by treating it continuously first with lime and then with alkali metal carbonate to remove Mg, Fe and Ca ions, the precipitated sodium chloride in the evaporator is washed with water to remove SO4 ions, and mercury ions are removed from the part of the spent brine treated to remove chlorate. The purification of the crude brine is effected as in Specification 951,643 and the evaporation and washing of the resulting salt are effected in apparatus as described in Specification 1,058,582.
GB3064163A 1962-08-06 1963-08-01 Process for obtaining chlorine, sodium hydroxide and hydrogen by the electrolysis of sodium chloride in mercury cells Expired GB1058581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH937262A CH434217A (en) 1962-08-06 1962-08-06 Process for the production of chlorine, sodium hydroxide and hydrogen by chlor-alkali electrolysis in mercury cells

Publications (1)

Publication Number Publication Date
GB1058581A true GB1058581A (en) 1967-02-15

Family

ID=4351303

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3064163A Expired GB1058581A (en) 1962-08-06 1963-08-01 Process for obtaining chlorine, sodium hydroxide and hydrogen by the electrolysis of sodium chloride in mercury cells

Country Status (7)

Country Link
AT (1) AT243827B (en)
BE (1) BE635848A (en)
CH (1) CH434217A (en)
DE (1) DE1467217B2 (en)
ES (1) ES290583A1 (en)
GB (1) GB1058581A (en)
NL (2) NL145286B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853722A (en) * 1973-06-28 1974-12-10 Ppg Industries Inc Method of producing prilled sodium hydroxide from mercury cell sodium hydroxide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481088A (en) * 1982-07-06 1984-11-06 Olin Corporation Removal of chlorate from electrolyte cell brine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853722A (en) * 1973-06-28 1974-12-10 Ppg Industries Inc Method of producing prilled sodium hydroxide from mercury cell sodium hydroxide

Also Published As

Publication number Publication date
ES290583A1 (en) 1963-12-16
DE1467217B2 (en) 1970-04-16
NL296253A (en)
CH434217A (en) 1967-04-30
NL145286B (en) 1975-03-17
AT243827B (en) 1965-12-10
DE1467217A1 (en) 1969-03-20
BE635848A (en)

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