FI884230A - Menetelmä dikromaatin poistamiseksi kloraatti-, hypokloriitti- ja dikromaatti-ioneja sisältävästä liuoksesta - Google Patents

Menetelmä dikromaatin poistamiseksi kloraatti-, hypokloriitti- ja dikromaatti-ioneja sisältävästä liuoksesta Download PDF

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Publication number
FI884230A
FI884230A FI884230A FI884230A FI884230A FI 884230 A FI884230 A FI 884230A FI 884230 A FI884230 A FI 884230A FI 884230 A FI884230 A FI 884230A FI 884230 A FI884230 A FI 884230A
Authority
FI
Finland
Prior art keywords
dichromate
hypochlorite
solution containing
ions
containing chlorate
Prior art date
Application number
FI884230A
Other languages
English (en)
Swedish (sv)
Other versions
FI90438C (fi
FI884230A0 (fi
FI90438B (fi
Inventor
Ian Harry Warren
Original Assignee
Canadian Ind
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 Canadian Ind filed Critical Canadian Ind
Publication of FI884230A0 publication Critical patent/FI884230A0/fi
Publication of FI884230A publication Critical patent/FI884230A/fi
Application granted granted Critical
Publication of FI90438B publication Critical patent/FI90438B/fi
Publication of FI90438C publication Critical patent/FI90438C/fi

Links

Classifications

    • 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
    • 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
    • C25B1/265—Chlorates
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00—Chemistry: electrical and wave energy
    • Y10S204/13—Purification and treatment of electroplating baths and plating wastes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal
    • Y10S210/913—Chromium

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)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Removal Of Specific Substances (AREA)
FI884230A 1987-09-14 1988-09-14 Menetelmä dikromaatin poistamiseksi kloraatti-, hypokloriitti- ja dikromaatti-ioneja sisältävästä liuoksesta FI90438C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000546835A CA1314688C (en) 1987-09-14 1987-09-14 Stripping and recovery of dichromate in electrolytic chlorate systems
CA546835 1987-09-14

Publications (4)

Publication Number Publication Date
FI884230A0 FI884230A0 (fi) 1988-09-14
FI884230A true FI884230A (fi) 1989-03-15
FI90438B FI90438B (fi) 1993-10-29
FI90438C FI90438C (fi) 1994-02-10

Family

ID=4136437

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884230A FI90438C (fi) 1987-09-14 1988-09-14 Menetelmä dikromaatin poistamiseksi kloraatti-, hypokloriitti- ja dikromaatti-ioneja sisältävästä liuoksesta

Country Status (12)

Country Link
US (1) US4804528A (fi)
EP (1) EP0308175B1 (fi)
CN (1) CN1015088B (fi)
AU (1) AU611465B2 (fi)
BR (1) BR8804713A (fi)
CA (1) CA1314688C (fi)
ES (1) ES2039633T3 (fi)
FI (1) FI90438C (fi)
NZ (1) NZ225601A (fi)
PT (1) PT88498B (fi)
SE (1) SE461227B (fi)
ZA (1) ZA886083B (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000858A (en) * 1989-07-17 1991-03-19 Coltec Industries Inc. Method for removing hexavalent chromium from water
US5093089A (en) * 1990-07-16 1992-03-03 Chemetics International Company Ltd. Process for the separation of sulphate
US5211853A (en) * 1992-07-31 1993-05-18 Huron Tech Corp. Method for the removal of chromium compounds from aqueous solutions
US5294307A (en) * 1992-07-31 1994-03-15 Huron Tech Corp Integrated process for the production of alkali and alkaline earth metal chlorates and chlorine dioxide
EP0766197A4 (en) * 1995-04-13 1999-12-29 Dainippon Printing Co Ltd INTEGRATED CIRCUIT BOARD AND MODULE
WO2010026886A1 (ja) * 2008-09-05 2010-03-11 日本化学工業株式会社 水酸化クロムの製造方法
CA2760094C (en) * 2009-05-15 2018-03-20 Akzo Nobel Chemicals International B.V. Activation of cathode
EP2550239B1 (de) * 2010-03-23 2017-06-07 LANXESS Deutschland GmbH Verfahren zur herstellung von chrom(iii)-oxid
EP2565162A1 (de) * 2011-09-05 2013-03-06 LANXESS Deutschland GmbH Verfahren zur Herstellung von Chrom(III)-oxid
AR084183A1 (es) 2010-12-08 2013-04-24 Lanxess Deutschland Gmbh Procedimiento para la produccion de oxido de cromo (iii)
JP6331145B2 (ja) * 2014-11-26 2018-05-30 三菱重工環境・化学エンジニアリング株式会社 アンモニア処理システム
CN113088981B (zh) * 2021-04-10 2022-06-24 贵州丝域环能科技有限公司 一种不锈钢酸洗钝化液的制备、处理及再生方法
CN116119620A (zh) * 2023-03-03 2023-05-16 湖南恒光科技股份有限公司 一种氯酸钠芒硝脱铬工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE218495C1 (fi) * 1964-03-10 1968-01-23
US3843769A (en) * 1972-01-20 1974-10-22 Hooker Chemical Corp Process for removing hexavalent chromium from chlorate containing liquors
JPS5521508A (en) * 1978-07-31 1980-02-15 Nippon Denko Kk Recovering method for useful substance from aged solution of chromic acid
US4268486A (en) * 1979-07-02 1981-05-19 Olin Corporation Selective chromate removal from a chlorate solution
CA1112845A (en) * 1979-07-16 1981-11-24 Ian H. Warren Destruction of sodium hypochlorite in solutions from a chlorate electrolytic cell
US4259297A (en) * 1979-09-04 1981-03-31 Olin Corporation Chromate removal from concentrated chlorate solution by chemical precipitation
IT1130595B (it) * 1980-05-12 1986-06-18 Stoppani Luigi Spa Procedimento continuo per l'eleminazione di cromo da acque di rifiuto e la valrizzazione del cromo ricuperato
US4477318A (en) * 1980-11-10 1984-10-16 Omi International Corporation Trivalent chromium electrolyte and process employing metal ion reducing agents
US4680126A (en) * 1986-02-18 1987-07-14 Frankard James M Separation and recovery of reusable heavy metal hydroxides from metal finishing wastewaters
CA1242307A (en) * 1986-05-21 1988-09-27 Superior Plus Inc. / Superieur Plus Inc. Removal of chromium from cell liquor

Also Published As

Publication number Publication date
PT88498B (pt) 1992-11-30
SE461227B (sv) 1990-01-22
PT88498A (pt) 1988-10-01
ES2039633T3 (es) 1993-10-01
FI90438C (fi) 1994-02-10
CN1015088B (zh) 1991-12-18
EP0308175A1 (en) 1989-03-22
FI884230A0 (fi) 1988-09-14
CN1031945A (zh) 1989-03-29
AU2034188A (en) 1989-03-16
BR8804713A (pt) 1989-04-18
EP0308175B1 (en) 1992-01-29
ZA886083B (en) 1989-04-26
US4804528A (en) 1989-02-14
SE8900332D0 (sv) 1989-01-31
FI90438B (fi) 1993-10-29
CA1314688C (en) 1993-03-23
NZ225601A (en) 1989-09-27
SE8900332A (fi) 1990-01-22
AU611465B2 (en) 1991-06-13

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MM Patent lapsed

Owner name: CHEMETICS INTERNATIONAL COMPANY LTD.