GB1365496A - Prparation of chlorine by electrolysisi of hydrochloric acid and polyvalent metal chlorides - Google Patents

Prparation of chlorine by electrolysisi of hydrochloric acid and polyvalent metal chlorides

Info

Publication number
GB1365496A
GB1365496A GB5655471A GB5655471A GB1365496A GB 1365496 A GB1365496 A GB 1365496A GB 5655471 A GB5655471 A GB 5655471A GB 5655471 A GB5655471 A GB 5655471A GB 1365496 A GB1365496 A GB 1365496A
Authority
GB
United Kingdom
Prior art keywords
chlorine
chloride
polyvalent metal
anolyte
catholyte
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
GB5655471A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB5655471A priority Critical patent/GB1365496A/en
Publication of GB1365496A publication Critical patent/GB1365496A/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
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof

Landscapes

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

Abstract

1365496 Chlorine production DOW CHEMICAL CO 6 Dec 1971 56554/71 Heading C7B A continuous process for producing chlorine comprises passing separate anolyte and catholyte streams through anode and cathode compartments A and C of an electrolytic diaphragm cell 10, the anolyte and catholyte containing aqueous HCl and a polyvalent metal chloride. Chlorine is evolved at the anode 12 and the valency of the polyvalent metal chloride is reduced at the cathode 11. The current density is up to one amp/sq in. The polyvalent metal chloride may be copper chloride, iron chloride or chromium chloride. The diaphragm 13 may be polypropylene, copolymers of vinyl chloride and acrylonitrile, or polyvinyl chloride. The composition of the anolyte and catholyte may be 2M Cucl 2 and from 3-8M HCL. The chlorine is removed at degassing unit 15. The anolyte then passes through heat exchanger 22 and absorber 16 where HCl is replenished. The anolyte is returned to the cell via filter 23. The catholyte is passed through heat exchanger 22 to an oxidizer 19 where it is contacted with an oxidizing atmosphere to reoxidize the polyvalent metal chloride. The oxidizing atmosphere may comprise an oxygen or chlorine containing gas. The reoxidized catholyte is then returned to the cell via filter 23.
GB5655471A 1971-12-06 1971-12-06 Prparation of chlorine by electrolysisi of hydrochloric acid and polyvalent metal chlorides Expired GB1365496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5655471A GB1365496A (en) 1971-12-06 1971-12-06 Prparation of chlorine by electrolysisi of hydrochloric acid and polyvalent metal chlorides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5655471A GB1365496A (en) 1971-12-06 1971-12-06 Prparation of chlorine by electrolysisi of hydrochloric acid and polyvalent metal chlorides

Publications (1)

Publication Number Publication Date
GB1365496A true GB1365496A (en) 1974-09-04

Family

ID=10476922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5655471A Expired GB1365496A (en) 1971-12-06 1971-12-06 Prparation of chlorine by electrolysisi of hydrochloric acid and polyvalent metal chlorides

Country Status (1)

Country Link
GB (1) GB1365496A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253860A (en) * 1991-03-12 1992-09-23 Kirk And Charashvili Internati Electrolytic treatment of water
CN110921787A (en) * 2019-12-04 2020-03-27 金川集团股份有限公司 Method for removing free chlorine from nickel chloride electrodeposition anolyte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253860A (en) * 1991-03-12 1992-09-23 Kirk And Charashvili Internati Electrolytic treatment of water
GB2253860B (en) * 1991-03-12 1995-10-11 Kirk And Charashvili Internati The electrochemical treatment of water and a device for electrochemically treating water
CN110921787A (en) * 2019-12-04 2020-03-27 金川集团股份有限公司 Method for removing free chlorine from nickel chloride electrodeposition anolyte

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Legal Events

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