US2602775A - Electrodeposition of zinc - Google Patents

Electrodeposition of zinc Download PDF

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Publication number
US2602775A
US2602775A US186323A US18632350A US2602775A US 2602775 A US2602775 A US 2602775A US 186323 A US186323 A US 186323A US 18632350 A US18632350 A US 18632350A US 2602775 A US2602775 A US 2602775A
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US
United States
Prior art keywords
zinc
lead
silver
copper
electrodeposition
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 - Lifetime
Application number
US186323A
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English (en)
Inventor
Isherwood Eldon Irwin
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.)
Hudson Bay Mining and Smelting Co Ltd
Original Assignee
Hudson Bay Mining and Smelting 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 Hudson Bay Mining and Smelting Co Ltd filed Critical Hudson Bay Mining and Smelting Co Ltd
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Publication of US2602775A publication Critical patent/US2602775A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
    • 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
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc

Definitions

  • This invention relates to the electrodeposition of zinc from zinc sulphate solutions using lead base alloy anodes.
  • lead base alloy anodes is meant anodes formed of an alloy consisting chiefly of lead.
  • anodes consisting of lead or consisting chiefly of that metal, and indeed it is generally considered that such anodes are the only ones suitable.
  • Such anodes are, however, subject to the disadvantage that, during the operation of the electrolytic cell, some of the lead from the anode is transferred to the cathode zinc deposit, thereby contaminating it, and decreasing the value of the zinc produced.
  • zinc is deposited from a zinc sulphate solution with an alloy anode consisting essentially of lead alloyed with small amounts of silver and copper, the percentage of silver being advantageously within the range of about 0.3% to about 1.45%, and of copper being about 0.1% to about 0.4%. It has been found that the best results are obtained with such an alloy anode containing about 1% silver, about 0.25% copper and the balance lead.
  • the electrodeposition of zinc from a zinc sulphate solution may also be carried out to advantage with a lead base alloy anode consisting essentially of lead alloyed with small amounts of silver, copper, cobalt and manganese, the percentages falling within the ranges of from about 0.4% to about 1.45% silver, from about 0.15% to about 0.45% copper, from about 0.01% to about 0.02% cobalt and from about 0.01% to about 0.15% manganese. It has been found that the best proportions for an alloy anode of this composition are about 1.0% silver, about 0.5% copper, about 0.02% cobalt, and about 0.1% manganese.
  • a process for the electrodeposition of zinc from a zinc sulphate solution which comprises causing deposition of zinc from the solution with an alloy anode consisting essentially of lead alloyed with small amounts of silver and copper.
  • a process for the electrodeposition of zinc from a zinc sulphate solution which comprises causing deposition of zinc from the solution with an alloy anode consisting essentially of lead alloyed with small amounts of silver, copper, cobalt and manganese.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electroplating Methods And Accessories (AREA)
US186323A 1950-08-10 1950-09-22 Electrodeposition of zinc Expired - Lifetime US2602775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA693538X 1950-08-10

Publications (1)

Publication Number Publication Date
US2602775A true US2602775A (en) 1952-07-08

Family

ID=4172190

Family Applications (1)

Application Number Title Priority Date Filing Date
US186323A Expired - Lifetime US2602775A (en) 1950-08-10 1950-09-22 Electrodeposition of zinc

Country Status (4)

Country Link
US (1) US2602775A (pt)
BE (1) BE504924A (pt)
DE (1) DE880214C (pt)
GB (1) GB693538A (pt)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729602A (en) * 1952-07-29 1956-01-03 George Robert Van Houten Electrodeposition of bright zinc plate
US2757134A (en) * 1953-08-17 1956-07-31 Westinghouse Electric Corp Zinc cyanide electrolyte
US2805944A (en) * 1953-09-16 1957-09-10 Sylvania Electric Prod Lead alloy for bonding metals to ceramics
US5019457A (en) * 1988-10-13 1991-05-28 Sumitomo Electric Industries, Ltd. Conductor used as a fuse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794234B1 (de) * 1996-03-04 1999-09-08 Ciba SC Holding AG Farbstoffmischungen, Verfahren zu deren Herstellung und deren Verwendung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1681272A (en) * 1925-11-30 1928-08-21 Yoshikawa Hiroshi Lead alloy
US1699761A (en) * 1927-05-21 1929-01-22 Westinghouse Electric & Mfg Co Solder
US2419722A (en) * 1941-08-07 1947-04-29 Hudson Bay Mining & Smelting Alloy anode for electrodeposition of zinc

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1681272A (en) * 1925-11-30 1928-08-21 Yoshikawa Hiroshi Lead alloy
US1699761A (en) * 1927-05-21 1929-01-22 Westinghouse Electric & Mfg Co Solder
US2419722A (en) * 1941-08-07 1947-04-29 Hudson Bay Mining & Smelting Alloy anode for electrodeposition of zinc

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729602A (en) * 1952-07-29 1956-01-03 George Robert Van Houten Electrodeposition of bright zinc plate
US2757134A (en) * 1953-08-17 1956-07-31 Westinghouse Electric Corp Zinc cyanide electrolyte
US2805944A (en) * 1953-09-16 1957-09-10 Sylvania Electric Prod Lead alloy for bonding metals to ceramics
US5019457A (en) * 1988-10-13 1991-05-28 Sumitomo Electric Industries, Ltd. Conductor used as a fuse

Also Published As

Publication number Publication date
DE880214C (de) 1953-06-18
GB693538A (en) 1953-07-01
BE504924A (pt)

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