GB1346656A - Electrolytic recovery of chlorine from aqueous hydrochloric acid - Google Patents

Electrolytic recovery of chlorine from aqueous hydrochloric acid

Info

Publication number
GB1346656A
GB1346656A GB3185871A GB3185871A GB1346656A GB 1346656 A GB1346656 A GB 1346656A GB 3185871 A GB3185871 A GB 3185871A GB 3185871 A GB3185871 A GB 3185871A GB 1346656 A GB1346656 A GB 1346656A
Authority
GB
United Kingdom
Prior art keywords
acid
chlorine
aqueous hydrochloric
hydrochloric acid
hydrogen
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
GB3185871A
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 SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1346656A publication Critical patent/GB1346656A/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

1346656 Recovering chlorine and hydrogen electrolytically BADISCHE ANILIN - & SODA - FABRIK A G 7 July 1971 [8 July 1970] 31858/71 Heading C7B In a method of recovering chlorine and hydrogen from aqueous hydrochloric acid in a diaphragm cell, the acid has a concentration of 18-28 wt per cent and during its passage through the cell the acid is consumed by not more than 2 wt per cent. The near temperature is 75-90‹C and the current density 2000-5000 A/m<SP>2</SP>. A high rate of flow of acid through the cell lowers the bubble overpotential. The electrolyte is substantially free from additives reducing the hydrogen over voltage.
GB3185871A 1970-07-08 1971-07-07 Electrolytic recovery of chlorine from aqueous hydrochloric acid Expired GB1346656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702033802 DE2033802A1 (en) 1970-07-08 1970-07-08 Process for the electrolytic recovery of chlorine from aqueous hydrochloric acid

Publications (1)

Publication Number Publication Date
GB1346656A true GB1346656A (en) 1974-02-13

Family

ID=5776115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3185871A Expired GB1346656A (en) 1970-07-08 1971-07-07 Electrolytic recovery of chlorine from aqueous hydrochloric acid

Country Status (5)

Country Link
US (1) US3756930A (en)
BE (1) BE769632A (en)
DE (1) DE2033802A1 (en)
FR (1) FR2098096A5 (en)
GB (1) GB1346656A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101394A (en) * 1975-05-09 1978-07-18 Ppg Industries, Inc. Electrolytic method
US4069120A (en) * 1976-09-21 1978-01-17 United Technologies Corporation Photo-electrolytic production of hydrogen
US4160704A (en) * 1977-04-29 1979-07-10 Olin Corporation In situ reduction of electrode overvoltage
US4105516A (en) * 1977-07-11 1978-08-08 Ppg Industries, Inc. Method of electrolysis
US4203813A (en) * 1978-11-01 1980-05-20 United Technologies Corporation Method for producing HBr
US4203814A (en) * 1978-11-01 1980-05-20 United Technologies Corporation Hydrogen gas generation utilizing a bromide electrolyte and radiant energy
US4263110A (en) * 1979-12-17 1981-04-21 United Technologies Corporation Hydrogen-bromine generation utilizing semiconducting platelets suspended in a vertically flowing electrolyte solution
US4263111A (en) * 1979-12-17 1981-04-21 United Technologies Corporation Hydrogen generation utilizing semiconducting platelets suspended in a divergent vertically flowing electrolyte solution
DE10152275A1 (en) * 2001-10-23 2003-04-30 Bayer Ag Process for the electrolysis of aqueous solutions of hydrogen chloride
US6811763B2 (en) * 2002-10-07 2004-11-02 The Procter & Gamble Company Conversion of sodium bromide to anhydrous hydrobromic acid and sodium bisulfate
US20040067192A1 (en) * 2002-10-07 2004-04-08 The Procter & Gamble Company Conversion of sodium bromide to anhydrous hydrobromic acid and sodium bisulfate

Also Published As

Publication number Publication date
US3756930A (en) 1973-09-04
BE769632A (en) 1972-01-07
DE2033802A1 (en) 1972-01-20
FR2098096A5 (en) 1972-03-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees