CA2220112A1 - Bromide removal - Google Patents

Bromide removal

Info

Publication number
CA2220112A1
CA2220112A1 CA002220112A CA2220112A CA2220112A1 CA 2220112 A1 CA2220112 A1 CA 2220112A1 CA 002220112 A CA002220112 A CA 002220112A CA 2220112 A CA2220112 A CA 2220112A CA 2220112 A1 CA2220112 A1 CA 2220112A1
Authority
CA
Canada
Prior art keywords
brine
electrolyser
filter
bromide
sodium hypochlorite
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
CA002220112A
Other languages
French (fr)
Other versions
CA2220112C (en
Inventor
David Macdonald Bonnick
Roger Roydon Ford
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.)
Siemens Industry Inc
Original Assignee
Individual
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
Priority claimed from GB939322625A external-priority patent/GB9322625D0/en
Priority to GB9421964A priority Critical patent/GB2283484B/en
Application filed by Individual filed Critical Individual
Priority to CA002220112A priority patent/CA2220112C/en
Priority to PCT/US1995/005603 priority patent/WO1996034999A1/en
Publication of CA2220112A1 publication Critical patent/CA2220112A1/en
Application granted granted Critical
Publication of CA2220112C publication Critical patent/CA2220112C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/20—Oxygen compounds of bromine
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/09—Bromine; Hydrogen bromide
    • C01B7/096—Bromine
    • 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
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • 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)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Sorption (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

A chlorination system in which brine is converted to sodium hypochlorite by an electrolyser. Brine (1) fed to the electrolyser (3) is passed through a filter (2) which is capable of adsorbing bromine or hypobromous acid. Some of the sodium hypochlorite produced in an electrolyser (3) is fed back to a point in the brine feed upstream of the filter (2) such that any bromide in the brine is oxidized to bromine or hypobromous acid and therefore adsorbed by the filter (2).
CA002220112A 1993-11-03 1995-05-04 Bromide removal Expired - Fee Related CA2220112C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9421964A GB2283484B (en) 1993-11-03 1994-10-28 Bromide removal
CA002220112A CA2220112C (en) 1993-11-03 1995-05-04 Bromide removal
PCT/US1995/005603 WO1996034999A1 (en) 1993-11-03 1995-05-04 Bromide removal

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939322625A GB9322625D0 (en) 1993-11-03 1993-11-03 Bromide removal
CA002220112A CA2220112C (en) 1993-11-03 1995-05-04 Bromide removal
PCT/US1995/005603 WO1996034999A1 (en) 1993-11-03 1995-05-04 Bromide removal

Publications (2)

Publication Number Publication Date
CA2220112A1 true CA2220112A1 (en) 1996-11-07
CA2220112C CA2220112C (en) 2007-02-27

Family

ID=27170521

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220112A Expired - Fee Related CA2220112C (en) 1993-11-03 1995-05-04 Bromide removal

Country Status (3)

Country Link
CA (1) CA2220112C (en)
GB (1) GB2283484B (en)
WO (1) WO1996034999A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348195A (en) * 1999-03-24 2000-09-27 Ion Enterprises Ltd Fluid treatment
DE50102673D1 (en) * 2001-05-16 2004-07-29 Va Tech Wabag Deutschland Gmbh Method and device for removing bromide from water
DE102008041164B4 (en) 2008-08-11 2011-01-13 Werthmann, Christine, Dr. Process for the treatment of water
CN113753861B (en) * 2021-09-29 2022-10-18 山东海王化工股份有限公司 Method for producing sodium bromate by combining alkaline process bromine extraction and diaphragm-free electrolysis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB867790A (en) * 1958-04-03 1961-05-10 Donald Edward Ferris Method and apparatus for producing hypochlorite of soda in an electrolytic cell
BE792690A (en) * 1971-12-14 1973-06-13 Rhone Poulenc Sa PROCESS FOR PURIFYING A CHLORIDE SOLUTION
FR2388597A1 (en) * 1977-04-27 1978-11-24 Sorapec Electrolytic cell with no separator between the electrodes - partic. useful for eliminating pollutants from effluents

Also Published As

Publication number Publication date
GB2283484A (en) 1995-05-10
CA2220112C (en) 2007-02-27
GB9421964D0 (en) 1994-12-21
GB2283484B (en) 1997-07-30
WO1996034999A1 (en) 1996-11-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140506