US2503479A - Removal of impurities from zinc electrolyte solutions - Google Patents

Removal of impurities from zinc electrolyte solutions Download PDF

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Publication number
US2503479A
US2503479A US778272A US77827247A US2503479A US 2503479 A US2503479 A US 2503479A US 778272 A US778272 A US 778272A US 77827247 A US77827247 A US 77827247A US 2503479 A US2503479 A US 2503479A
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US
United States
Prior art keywords
zinc
impurities
removal
electrolyte solutions
lead
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
US778272A
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English (en)
Inventor
Griffith Dinsmore Laurence
Rankin Mavis Jean
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.)
Hudbay Minerals Inc
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.)
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Publication date
Application filed by Hudson Bay Mining and Smelting Co Ltd filed Critical Hudson Bay Mining and Smelting Co Ltd
Application granted granted Critical
Publication of US2503479A publication Critical patent/US2503479A/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
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C01G9/06—Sulfates
    • 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

Definitions

  • This invention relates to the removal of impurities present in zinc electrolyte solutions prior to the recovery of zinc therefrom by the electrolytic method.
  • the improvement in purification obtained is also illustrated by the following series of tests using a sample of tank house electrolyte containing about 120 grams per litre of zinc as sulphate, 0.6 milligram per litre of copper, 20.0 milligrams per litre of cobalt, 0.1 milligram per litre of antimony and no detectable quantity of lead. Since the above tests indicated that, with the particular stirring equipment used, the impurity content was the lowest after stirring for minutes when lead was used and about 45 minutes when lead was not used, stirring was carried out for these periods. In the following table the quantities of zinc dust, copper, tartar emetic and lead are given for each test, as well as the filter assays, and ND indicates not detectable.
  • a method of removing impurities from zinc electrolyte solutions comprising adding to the electrolyte small amounts of zinc dust, copper sulphate, tartar emetic, and from about 50 to about 200 milligrams per litre of lead acetate.
  • a method of removing impurities from zinc electrolyte solutions comprising contacting the electrolyte with small amounts of zinc dust in the presence of small amounts of soluble copper and antimony compounds and from about 50 to about 200 milligrams per litre of lead in the form of a soluble compound.
  • a method of removing impurities from zinc electrolyte solutions comprising adding to the 2,396,569

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)
  • Electrolytic Production Of Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US778272A 1946-07-18 1947-10-06 Removal of impurities from zinc electrolyte solutions Expired - Lifetime US2503479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA809111X 1946-07-18

Publications (1)

Publication Number Publication Date
US2503479A true US2503479A (en) 1950-04-11

Family

ID=4172541

Family Applications (1)

Application Number Title Priority Date Filing Date
US778272A Expired - Lifetime US2503479A (en) 1946-07-18 1947-10-06 Removal of impurities from zinc electrolyte solutions

Country Status (4)

Country Link
US (1) US2503479A (de)
DE (1) DE809111C (de)
FR (1) FR955509A (de)
GB (1) GB638651A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609428A (en) * 1949-08-31 1952-09-02 Rca Corp Base electrodes for semiconductor devices
US2746840A (en) * 1952-07-24 1956-05-22 Dow Chemical Co Purification of concentrated salt solutions
DE2624762A1 (de) * 1975-06-04 1976-12-16 Shell Int Research Verfahren zur reinigung einer waessrigen zinksulfat-loesung
US5208004A (en) * 1992-01-15 1993-05-04 Metals Recycling Technologies Corp. Method for the recovery of zinc oxide
US5453111A (en) * 1992-01-15 1995-09-26 Metals Recycling Technologies, Inc. Method for separation of metals from waste stream
US5464596A (en) * 1992-01-15 1995-11-07 Metals Recycling Technologies Corp. Method for treating waste streams containing zinc
WO2021147803A1 (zh) * 2020-01-20 2021-07-29 昆明瀚创科技有限公司 一种硫酸锌溶液连续深度净化除镍钴锗的设备及控制方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735760A (en) * 1954-12-28 1956-02-21 precipitation from n

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396569A (en) * 1943-08-03 1946-03-12 Hudson Bay Mining & Smelting Method of purifying electrolytes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396569A (en) * 1943-08-03 1946-03-12 Hudson Bay Mining & Smelting Method of purifying electrolytes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609428A (en) * 1949-08-31 1952-09-02 Rca Corp Base electrodes for semiconductor devices
US2746840A (en) * 1952-07-24 1956-05-22 Dow Chemical Co Purification of concentrated salt solutions
DE2624762A1 (de) * 1975-06-04 1976-12-16 Shell Int Research Verfahren zur reinigung einer waessrigen zinksulfat-loesung
US5208004A (en) * 1992-01-15 1993-05-04 Metals Recycling Technologies Corp. Method for the recovery of zinc oxide
US5453111A (en) * 1992-01-15 1995-09-26 Metals Recycling Technologies, Inc. Method for separation of metals from waste stream
US5464596A (en) * 1992-01-15 1995-11-07 Metals Recycling Technologies Corp. Method for treating waste streams containing zinc
WO2021147803A1 (zh) * 2020-01-20 2021-07-29 昆明瀚创科技有限公司 一种硫酸锌溶液连续深度净化除镍钴锗的设备及控制方法

Also Published As

Publication number Publication date
DE809111C (de) 1951-07-23
GB638651A (en) 1950-06-14
FR955509A (fr) 1950-01-13

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