AU594519B2 - Electrochemical removal of chromium from chlorate solutions - Google Patents

Electrochemical removal of chromium from chlorate solutions

Info

Publication number
AU594519B2
AU594519B2 AU80421/87A AU8042187A AU594519B2 AU 594519 B2 AU594519 B2 AU 594519B2 AU 80421/87 A AU80421/87 A AU 80421/87A AU 8042187 A AU8042187 A AU 8042187A AU 594519 B2 AU594519 B2 AU 594519B2
Authority
AU
Australia
Prior art keywords
cathode
process according
chlorate
chromium
electrode
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.)
Ceased
Application number
AU80421/87A
Other languages
English (en)
Other versions
AU8042187A (en
Inventor
Marek Lipsztajn
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.)
Tenneco Canada Inc
Original Assignee
Tenneco Canada Inc
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 CA000521734A external-priority patent/CA1257223A/en
Application filed by Tenneco Canada Inc filed Critical Tenneco Canada Inc
Publication of AU8042187A publication Critical patent/AU8042187A/en
Application granted granted Critical
Publication of AU594519B2 publication Critical patent/AU594519B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • 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
    • C01B11/12—Chloric acid
    • C01B11/14—Chlorates
    • C01B11/145—Separation; Crystallisation; Purification, After-treatment; Stabilisation by additives
    • 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
    • C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • 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
    • C25B15/085—Removing impurities
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46157—Perforated or foraminous electrodes
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46157—Perforated or foraminous electrodes
    • C02F2001/46161—Porous electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
AU80421/87A 1986-10-29 1987-10-28 Electrochemical removal of chromium from chlorate solutions Ceased AU594519B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA521734 1986-10-29
CA000521734A CA1257223A (en) 1988-02-01 1986-10-29 Electrochemical removal of chromium from chlorate solutions

Publications (2)

Publication Number Publication Date
AU8042187A AU8042187A (en) 1988-05-05
AU594519B2 true AU594519B2 (en) 1990-03-08

Family

ID=4134243

Family Applications (1)

Application Number Title Priority Date Filing Date
AU80421/87A Ceased AU594519B2 (en) 1986-10-29 1987-10-28 Electrochemical removal of chromium from chlorate solutions

Country Status (8)

Country Link
EP (1) EP0267704A1 (enExample)
JP (1) JPS63118085A (enExample)
AU (1) AU594519B2 (enExample)
BR (1) BR8705784A (enExample)
DD (1) DD262679A5 (enExample)
FI (1) FI874697L (enExample)
PT (1) PT86001B (enExample)
ZA (1) ZA877762B (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1252753A (en) * 1986-10-29 1989-04-18 Sterling Canada, Inc. Selective removal of chlorine from solutions of chlorine dioxide and chlorine
EP0474936A1 (en) * 1990-09-14 1992-03-18 The State Of Israel, Atomic Energy Commission, Nuclear Research Center Negev Electrochemical process for purifying chromium-containing wastes
DE19519177C2 (de) * 1995-05-24 1999-05-12 Warnecke Hans Joachim Prof Dr Verfahren und Vorrichtung zur Abfall-CSB-Wert-Verminderung
IL128081A (en) 1999-01-15 2003-02-12 Israel Aircraft Ind Ltd REACTOR FOR ELECTROLYTIC REDUCTION OF Cr<+6>
US7153586B2 (en) 2003-08-01 2006-12-26 Vapor Technologies, Inc. Article with scandium compound decorative coating
US20070026205A1 (en) 2005-08-01 2007-02-01 Vapor Technologies Inc. Article having patterned decorative coating
JP2010132970A (ja) * 2008-12-04 2010-06-17 Hosoda Denki:Kk ６価クロムの除去方法とその除去装置
CN119797515B (zh) * 2025-02-20 2026-06-30 上海特瑞思材料科技有限公司 一种去除水中六价铬离子的装置与工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU534996B2 (en) * 1979-05-29 1984-02-23 Eltech Systems Corporation Production of chromic acid
AU8042387A (en) * 1986-10-29 1988-05-05 Tenneco Canada Inc. Electrochemical removal of hypochlorites from chlorate cell liquors
AU8042487A (en) * 1986-10-29 1988-05-05 Tenneco Canada Inc. Production of hexavalent chromium for use in chlorate cells

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1334794A (fr) * 1961-10-12 1963-08-09 Feldmuehle Ag Procédé d'épuration préliminaire de saumures salines destinées à l'électrolyse des chlorures alcalins
US4268486A (en) * 1979-07-02 1981-05-19 Olin Corporation Selective chromate removal from a chlorate solution

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU534996B2 (en) * 1979-05-29 1984-02-23 Eltech Systems Corporation Production of chromic acid
AU8042387A (en) * 1986-10-29 1988-05-05 Tenneco Canada Inc. Electrochemical removal of hypochlorites from chlorate cell liquors
AU8042487A (en) * 1986-10-29 1988-05-05 Tenneco Canada Inc. Production of hexavalent chromium for use in chlorate cells

Also Published As

Publication number Publication date
FI874697A0 (fi) 1987-10-26
PT86001B (pt) 1990-11-20
PT86001A (en) 1987-11-01
EP0267704A1 (en) 1988-05-18
BR8705784A (pt) 1988-05-31
JPS63118085A (ja) 1988-05-23
AU8042187A (en) 1988-05-05
ZA877762B (en) 1988-04-20
FI874697A7 (fi) 1988-04-30
DD262679A5 (de) 1988-12-07
FI874697L (fi) 1988-04-30
JPH028031B2 (enExample) 1990-02-22

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