JPS5534607A - Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis - Google Patents

Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis

Info

Publication number
JPS5534607A
JPS5534607A JP10483678A JP10483678A JPS5534607A JP S5534607 A JPS5534607 A JP S5534607A JP 10483678 A JP10483678 A JP 10483678A JP 10483678 A JP10483678 A JP 10483678A JP S5534607 A JPS5534607 A JP S5534607A
Authority
JP
Japan
Prior art keywords
solution
chromate
hexavalent
chromate solution
trivalent
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
JP10483678A
Other languages
Japanese (ja)
Other versions
JPS5749633B2 (en
Inventor
Keizo Tarumoto
Masaaki Matsumoto
Tadashi Fukuda
Jiyouichirou Oosuge
Takashi Kato
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.)
SHIZUOKAKEN
Shizuoka Prefecture
Sanshin Mfg Co Ltd
Original Assignee
SHIZUOKAKEN
Shizuoka Prefecture
Sanshin Mfg Co Ltd
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 SHIZUOKAKEN, Shizuoka Prefecture, Sanshin Mfg Co Ltd filed Critical SHIZUOKAKEN
Priority to JP10483678A priority Critical patent/JPS5534607A/en
Publication of JPS5534607A publication Critical patent/JPS5534607A/en
Publication of JPS5749633B2 publication Critical patent/JPS5749633B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/86—Regeneration of coating baths

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

PURPOSE:To oxidize the trivalent Cr into hexavalent Cr and to deposite and separate Fe, Zn, etc., in order to regenerate the chromate solution, by oxidizing the aged chromate solution including the dissolved Fe, Zn, etc., and diminished amount of hexavalent Cr, in the anode chamber of the electrolytic cell, and then, by introducing the solution into the cathode chamber. CONSTITUTION:The aged chromate solution, being used in the chromate treatment including the diminished content of hexavalent Cr and increased metallic ions like as Fe, Zn, etc., is introduced into the first anode chamber 4a of the cell 4. The electricity is supplied to the anode 4d, and the trivalent Cr is changed to hexavalent Cr by the anodic oxidation; hereafter, the solution is returned to the chromate solution tank 1. The chromate solution of the first anode chamber 4a is introduced into the second anode chamber 4a' through the pipe 4f, on purpose to oxidize the unoxidized trivalent Cr into hexavalent Cr. After that, the solution is introduced into the cathode chamber 4b, and the included metallic impurities like as Fe, Zn, etc., are deposited on the cathode 4e; and then, the deposited metals are separated from the solution in the separator 12; thus treated solution is returned to the chromate solution tank 1.
JP10483678A 1978-08-30 1978-08-30 Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis Granted JPS5534607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10483678A JPS5534607A (en) 1978-08-30 1978-08-30 Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10483678A JPS5534607A (en) 1978-08-30 1978-08-30 Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis

Publications (2)

Publication Number Publication Date
JPS5534607A true JPS5534607A (en) 1980-03-11
JPS5749633B2 JPS5749633B2 (en) 1982-10-22

Family

ID=14391437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10483678A Granted JPS5534607A (en) 1978-08-30 1978-08-30 Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis

Country Status (1)

Country Link
JP (1) JPS5534607A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60229414A (en) * 1984-04-27 1985-11-14 Hitachi Ltd Elastic surface wave device
JPS60249411A (en) * 1984-05-25 1985-12-10 Hitachi Ltd Surface acoustic wave device
JPS61141217A (en) * 1984-12-14 1986-06-28 Hitachi Ltd Surface acoustic wave device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163853U (en) * 1983-04-19 1984-11-02 アイヱム換気工業株式会社 Fire damper device for ventilation system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100942A (en) * 1975-03-04 1976-09-06 Nakamura Minoru
JPS53110930A (en) * 1977-03-09 1978-09-28 Yuasa Battery Co Ltd Continuous purifying method of chromate liquid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100942A (en) * 1975-03-04 1976-09-06 Nakamura Minoru
JPS53110930A (en) * 1977-03-09 1978-09-28 Yuasa Battery Co Ltd Continuous purifying method of chromate liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60229414A (en) * 1984-04-27 1985-11-14 Hitachi Ltd Elastic surface wave device
JPS60249411A (en) * 1984-05-25 1985-12-10 Hitachi Ltd Surface acoustic wave device
JPS61141217A (en) * 1984-12-14 1986-06-28 Hitachi Ltd Surface acoustic wave device

Also Published As

Publication number Publication date
JPS5749633B2 (en) 1982-10-22

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