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GB1257934A - - Google Patents

Info

Publication number
GB1257934A
GB1257934A GB1257934DA GB1257934A GB 1257934 A GB1257934 A GB 1257934A GB 1257934D A GB1257934D A GB 1257934DA GB 1257934 A GB1257934 A GB 1257934A
Authority
GB
United Kingdom
Prior art keywords
brine
carbonate
coated copper
calcium
niobium
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
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 filed Critical
Publication of GB1257934A publication Critical patent/GB1257934A/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
    • 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
    • C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
    • 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
    • C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
    • C25B11/061—Metal or alloy

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)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

1,257,934. Electrolysis of brine. HOOKER CHEMICAL CORP. July 3, 1969 [July 5, 1968], No.33685/69. Heading C7B. A brine containing 3À5-15% by weight of alkali metal chloride is electrolyzed in a diaphragm chlor-alkali cell at a temperature from 80‹ C. to the boiling point of the brine, the anode comprising a substrate of a) titanuim or an alloy thereof containing less than 10% by weight of aluminium, vanadium, chronium, palladium, tin or a mixture thereof, b) titanium-coated copper, c) tantalum, d) tantalum-coated copper, e) niobium or f) niobium-coated copper, the substrate having thereon an active surface comprising ruthenium, rhodium, palladium, iredium, platinum or a mixture thereof. The brine may also contain as impurities sulphate, phosphate, carbonate or nitrate ions or organic material. The chlorine, caustic alkali and hydrogen produced may be recovered. Before electrolysis the brine may be treated to remove calcium and magnesium by precipitating calcium as carbonate, adjusting the pH to near neutrality, raising the alkali metal chloride concentration to 5-15% and precipitating further calcium as carbonate and magnesium as hydroxide by adding alkaline solution containing carbonate ions.
GB1257934D 1968-07-05 1969-07-03 Expired GB1257934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74289168A 1968-07-05 1968-07-05

Publications (1)

Publication Number Publication Date
GB1257934A true GB1257934A (en) 1971-12-22

Family

ID=24986664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257934D Expired GB1257934A (en) 1968-07-05 1969-07-03

Country Status (7)

Country Link
BE (1) BE735768A (en)
CA (1) CA971127A (en)
DE (1) DE1934082A1 (en)
FR (1) FR2022099A1 (en)
GB (1) GB1257934A (en)
IL (1) IL32525A (en)
NL (1) NL6910201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021197787A1 (en) * 2020-04-01 2021-10-07 Siemens Aktiengesellschaft Device and method for carbon dioxide electrolysis or carbon monoxide electrolysis

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146326C2 (en) * 1981-11-23 1983-11-10 Kraftwerk Union AG, 4330 Mülheim Plant for the production of drinking water from sea water
JP2024545332A (en) 2021-12-22 2024-12-05 ザ・リサーチ・ファウンデーション・フォー・ザ・ステイト・ユニヴァーシティ・オブ・ニューヨーク Systems and methods for electrochemical marine alkalinity enhancement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021197787A1 (en) * 2020-04-01 2021-10-07 Siemens Aktiengesellschaft Device and method for carbon dioxide electrolysis or carbon monoxide electrolysis

Also Published As

Publication number Publication date
FR2022099A1 (en) 1970-07-31
IL32525A (en) 1973-03-30
BE735768A (en) 1970-01-07
CA971127A (en) 1975-07-15
NL6910201A (en) 1970-01-07
IL32525A0 (en) 1969-09-25
DE1934082A1 (en) 1970-09-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee