CA1017279A - Rejuvenated chromium plating medium containing carboxylic acid and sulfite constituents - Google Patents

Rejuvenated chromium plating medium containing carboxylic acid and sulfite constituents

Info

Publication number
CA1017279A
CA1017279A CA134,302A CA134302A CA1017279A CA 1017279 A CA1017279 A CA 1017279A CA 134302 A CA134302 A CA 134302A CA 1017279 A CA1017279 A CA 1017279A
Authority
CA
Canada
Prior art keywords
rejuvenated
sulfite
constituents
carboxylic acid
medium containing
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
CA134,302A
Other versions
CA134302S (en
Inventor
John E. Bride
Francis Huba
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of CA1017279A publication Critical patent/CA1017279A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium
    • C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
CA134,302A 1971-02-19 1972-02-09 Rejuvenated chromium plating medium containing carboxylic acid and sulfite constituents Expired CA1017279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11709171A 1971-02-19 1971-02-19

Publications (1)

Publication Number Publication Date
CA1017279A true CA1017279A (en) 1977-09-13

Family

ID=22370945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA134,302A Expired CA1017279A (en) 1971-02-19 1972-02-09 Rejuvenated chromium plating medium containing carboxylic acid and sulfite constituents

Country Status (6)

Country Link
US (1) US3706639A (en)
CA (1) CA1017279A (en)
FR (1) FR2125315B1 (en)
GB (1) GB1383524A (en)
IT (1) IT948644B (en)
NL (1) NL7202194A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1562188A (en) * 1975-08-27 1980-03-05 Albright & Wilson Chromium electroplating baths
GB8411063D0 (en) * 1984-05-01 1984-06-06 Mccormick M Chromium electroplating
GB2158100B (en) * 1984-05-01 1988-02-03 Nat Res Dev Chromium electroplating bath
US5243320A (en) * 1988-02-26 1993-09-07 Gould Inc. Resistive metal layers and method for making same

Also Published As

Publication number Publication date
FR2125315A1 (en) 1972-09-29
GB1383524A (en) 1974-02-12
DE2207702B2 (en) 1977-02-03
DE2207702A1 (en) 1972-08-31
FR2125315B1 (en) 1976-12-03
IT948644B (en) 1973-06-11
US3706639A (en) 1972-12-19
NL7202194A (en) 1972-08-22

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