ES336062A1 - Un procedimiento para tratar un bano que contiene cromo trivalente, para convertirdicho cromo trivalente en cromo hexavalente. - Google Patents

Un procedimiento para tratar un bano que contiene cromo trivalente, para convertirdicho cromo trivalente en cromo hexavalente.

Info

Publication number
ES336062A1
ES336062A1 ES336062A ES336062A ES336062A1 ES 336062 A1 ES336062 A1 ES 336062A1 ES 336062 A ES336062 A ES 336062A ES 336062 A ES336062 A ES 336062A ES 336062 A1 ES336062 A1 ES 336062A1
Authority
ES
Spain
Prior art keywords
bath
electrolyzing
cathode
chromium
trivalent chromium
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
ES336062A
Other languages
English (en)
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.)
M&T Chemicals Inc
Original Assignee
M&T Chemicals 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
Application filed by M&T Chemicals Inc filed Critical M&T Chemicals Inc
Publication of ES336062A1 publication Critical patent/ES336062A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/14—Chromates; Bichromates
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/16—Regeneration of process solutions
    • C25D21/18—Regeneration of process solutions 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)
ES336062A 1966-01-26 1967-01-25 Un procedimiento para tratar un bano que contiene cromo trivalente, para convertirdicho cromo trivalente en cromo hexavalente. Expired ES336062A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52311666A 1966-01-26 1966-01-26
US4585470A 1970-06-12 1970-06-12

Publications (1)

Publication Number Publication Date
ES336062A1 true ES336062A1 (es) 1968-06-01

Family

ID=26723268

Family Applications (1)

Application Number Title Priority Date Filing Date
ES336062A Expired ES336062A1 (es) 1966-01-26 1967-01-25 Un procedimiento para tratar un bano que contiene cromo trivalente, para convertirdicho cromo trivalente en cromo hexavalente.

Country Status (6)

Country Link
US (2) US3616304A (es)
BR (1) BR6786473D0 (es)
CH (1) CH510128A (es)
ES (1) ES336062A1 (es)
FR (1) FR1510316A (es)
NL (1) NL6701276A (es)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661732A (en) * 1970-06-01 1972-05-09 Production Machinery Corp Method and apparatus for electroplating
US3926754A (en) * 1972-02-11 1975-12-16 Andco Inc Electrochemical contaminant removal from aqueous media
US3847765A (en) * 1972-12-20 1974-11-12 Mitsubishi Petrochemical Co Method for the treatment of cyanide-containing wastes
US4006067A (en) * 1973-03-05 1977-02-01 Gussack Mark C Oxidation-reduction process
US3909381A (en) * 1974-11-18 1975-09-30 Raymond John L Purification of chromium plating solutions by electrodialysis
US4118295A (en) * 1976-04-20 1978-10-03 Dart Industries Inc. Regeneration of plastic etchants
JPS52141439A (en) * 1976-04-27 1977-11-25 Nippon Paint Co Ltd Method of managing chemicallconversion treating liquid for acidic phosphate coating
DE2646590C3 (de) * 1976-10-15 1982-03-25 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur Regenerierung von chromsäurehaltigen chemischen Aufrauhbädern für Kunststoffe
US4302304A (en) * 1978-08-11 1981-11-24 Mitsubishi Jukogyo Kabushiki Kaisha Process for treating electrolytic solution
US4188272A (en) * 1979-05-07 1980-02-12 Eastman Kodak Company Electrical chemical process for the removal of hexavalent chromium from aqueous medium
US4337129A (en) * 1979-05-08 1982-06-29 The United States Of America As Represented By The Secretary Of The Interior Regeneration of waste metallurgical process liquor
US4217192A (en) * 1979-06-11 1980-08-12 The United States Of America As Represented By The United States Department Of Energy Decontamination of metals using chemical etching
FR2465011A1 (fr) * 1979-09-06 1981-03-20 Carnaud Sa Materiau constitue d'une tole d'acier protegee, son procede de fabrication, et ses applications, ntamment aux boites de conserve
US4256557A (en) * 1979-10-16 1981-03-17 The United States Of America As Represented By The Secretary Of The Interior Copper electrowinning and Cr+6 reduction in spent etchants using porous fixed bed coke electrodes
US4325792A (en) * 1981-03-09 1982-04-20 Vaughan Daniel J Purification process
US4701246A (en) * 1985-03-07 1987-10-20 Kabushiki Kaisha Toshiba Method for production of decontaminating liquid
US5246559A (en) * 1991-11-29 1993-09-21 Eltech Systems Corporation Electrolytic cell apparatus
US6063252A (en) * 1997-08-08 2000-05-16 Raymond; John L. Method and apparatus for enriching the chromium in a chromium plating bath
FR2791662B1 (fr) * 1999-04-01 2001-06-22 Conservatoire Nat Arts Procede de traitement electrochimique d'effluents, notamment d'effluents de tannerie, comprenant des sels de chrome
US6207033B1 (en) * 1999-05-06 2001-03-27 The United States Of America As Represented By The Secretary Of The Army Process and apparatus for regeneration of chromium plating bath
US6468414B1 (en) 2001-02-16 2002-10-22 Hydro-Quebec Method of purification of a redox mediator before electrolytic regeneration thereof
US7473546B2 (en) * 2003-11-13 2009-01-06 Savannah River Nuclear Solutions, Llc Surfactant biocatalyst for remediation of recalcitrant organics and heavy metals
US20050208670A1 (en) * 2004-03-22 2005-09-22 Wittenberg Malcolm B Detection of mercury in biological samples

Also Published As

Publication number Publication date
US3682796A (en) 1972-08-08
FR1510316A (fr) 1968-01-19
NL6701276A (es) 1967-07-27
CH510128A (de) 1971-07-15
US3616304A (en) 1971-10-26
BR6786473D0 (pt) 1973-01-09

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