GB2005645A - A process for purifying an aqueous solution of an alkali metal halide for electrolysis - Google Patents

A process for purifying an aqueous solution of an alkali metal halide for electrolysis

Info

Publication number
GB2005645A
GB2005645A GB7834646A GB7834646A GB2005645A GB 2005645 A GB2005645 A GB 2005645A GB 7834646 A GB7834646 A GB 7834646A GB 7834646 A GB7834646 A GB 7834646A GB 2005645 A GB2005645 A GB 2005645A
Authority
GB
United Kingdom
Prior art keywords
electrolysis
purifying
alkali metal
metal halide
solution
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
GB7834646A
Other versions
GB2005645B (en
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.)
ThyssenKrupp Uhde Chlorine Engineers Japan Ltd
Original Assignee
Chlorine Engineers Corp Ltd
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 Chlorine Engineers Corp Ltd filed Critical Chlorine Engineers Corp Ltd
Publication of GB2005645A publication Critical patent/GB2005645A/en
Application granted granted Critical
Publication of GB2005645B publication Critical patent/GB2005645B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/16—Purification by precipitation or adsorption
    • 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
    • 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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Removal Of Specific Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a process for purifying an aqueous solution of an alkali metal halide e.g. brine for electrolysis, the solution containing polyvalent ions including calcium ions, phosphate ion is added to the solution in an amount exceeding that which is consumed in the reaction of the phosphate ion with the calcium ions. The pH of the solution is adjusted to the alkaline region to precipitate at least the calcium ions in the solution and the precipitate is removed. Magnesium ions, if present, are also precipitated.
GB7834646A 1977-10-13 1978-08-25 Process for an alkali metal halide for electrolysis Expired GB2005645B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52121848A JPS6055442B2 (en) 1977-10-13 1977-10-13 Method for purifying salt water for electrolysis

Publications (2)

Publication Number Publication Date
GB2005645A true GB2005645A (en) 1979-04-25
GB2005645B GB2005645B (en) 1982-04-07

Family

ID=14821421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834646A Expired GB2005645B (en) 1977-10-13 1978-08-25 Process for an alkali metal halide for electrolysis

Country Status (19)

Country Link
JP (1) JPS6055442B2 (en)
AT (1) AT358068B (en)
AU (1) AU514942B2 (en)
BE (1) BE869949A (en)
BR (1) BR7805611A (en)
CA (1) CA1156599A (en)
CH (1) CH637353A5 (en)
DE (1) DE2837192B2 (en)
DK (1) DK369678A (en)
ES (1) ES472924A1 (en)
FI (1) FI64401C (en)
FR (1) FR2406004A1 (en)
GB (1) GB2005645B (en)
IT (1) IT1106279B (en)
NL (1) NL7808794A (en)
NO (1) NO151541C (en)
NZ (1) NZ188254A (en)
PT (1) PT68489A (en)
SE (1) SE429979B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0135314A1 (en) * 1983-08-15 1985-03-27 Imperial Chemical Industries Plc Electrolytic cell module
GB2159804A (en) * 1984-04-17 1985-12-11 Dampier Salt Ltd Process for improving purity of salt
EP2603620A4 (en) * 2010-08-12 2016-10-12 Res Inst Ind Science & Tech Method of extracting lithium with high purity from lithium bearing solution by electrolysis

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103449479A (en) * 2013-09-12 2013-12-18 山东东岳氟硅材料有限公司 Method for reducing content of calcium and magnesium ions in primary brine
CN105565342B (en) * 2015-12-16 2018-02-27 攀枝花钢企欣宇化工有限公司 Refining agent and its application for primary refined brine in chlorine industry

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE55976C (en) * M. M. MONSANTO in Hoboken, New-Jersey, V. St. A Method for purifying Soole by sodium phosphate
GB199607A (en) * 1922-06-28 1923-06-28 Johann Theodor Westermann Process for manufacturing pure sodium chloride
US2433601A (en) * 1944-01-25 1947-12-30 Bay Chemical Company Inc Preparation of purified brine
US2624654A (en) * 1949-06-03 1953-01-06 Diamond Alkali Co Method of making purified brine
US2906599A (en) * 1953-11-16 1959-09-29 Hagan Chemicals & Controls Inc Method of preparing sodium chloride brines of high purity
US2906600A (en) * 1954-10-22 1959-09-29 Hagan Chemicals & Controls Inc Method of preparing sodium chloride brine of high purity
US3140915A (en) * 1962-08-13 1964-07-14 Freeport Sulphur Co Method of inhibiting dissolution of calcium sulfate
US3607688A (en) * 1969-01-17 1971-09-21 Seiichi Inoue Treating sea water with production of chlorine and fertilizer
BE795460A (en) * 1972-02-16 1973-08-16 Diamond Shamrock Corp PERFECTIONS RELATING TO ELECTROLYTIC TANKS
FR2244708B1 (en) * 1973-09-25 1977-08-12 Ugine Kuhlmann
JPS551351B2 (en) * 1974-03-07 1980-01-12
US4040919A (en) * 1974-10-29 1977-08-09 Hooker Chemicals & Plastics Corporation Voltage reduction of membrane cell for the electrolysis of brine
JPS5186100A (en) * 1975-01-25 1976-07-28 Asahi Chemical Ind ENSUINO DENKAIHOHO
US4038365A (en) * 1975-12-03 1977-07-26 Basf Wyandotte Corporation Removal of low level hardness impurities from brine feed to chlorine cells

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0135314A1 (en) * 1983-08-15 1985-03-27 Imperial Chemical Industries Plc Electrolytic cell module
US4963235A (en) * 1983-08-15 1990-10-16 Imperial Chemical Industries Plc Process for treating electrolytic cell products
GB2159804A (en) * 1984-04-17 1985-12-11 Dampier Salt Ltd Process for improving purity of salt
EP2603620A4 (en) * 2010-08-12 2016-10-12 Res Inst Ind Science & Tech Method of extracting lithium with high purity from lithium bearing solution by electrolysis

Also Published As

Publication number Publication date
AT358068B (en) 1980-08-25
DE2837192B2 (en) 1980-10-09
AU3928078A (en) 1980-02-28
IT7850868A0 (en) 1978-08-28
JPS5456079A (en) 1979-05-04
DE2837192A1 (en) 1979-04-19
FR2406004B1 (en) 1981-03-06
BE869949A (en) 1978-12-18
FI782623A (en) 1979-04-14
NO151541B (en) 1985-01-14
NO782853L (en) 1979-04-18
AU514942B2 (en) 1981-03-05
BR7805611A (en) 1979-06-05
PT68489A (en) 1978-09-01
JPS6055442B2 (en) 1985-12-05
ES472924A1 (en) 1979-02-16
SE7808775L (en) 1979-04-14
DK369678A (en) 1979-04-14
FI64401B (en) 1983-07-29
NZ188254A (en) 1980-11-14
NO151541C (en) 1985-05-02
CH637353A5 (en) 1983-07-29
NL7808794A (en) 1979-04-18
FI64401C (en) 1983-11-10
GB2005645B (en) 1982-04-07
FR2406004A1 (en) 1979-05-11
SE429979B (en) 1983-10-10
IT1106279B (en) 1985-11-11
ATA623378A (en) 1980-01-15
CA1156599A (en) 1983-11-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee