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WO2003102275A3 - Electrochemical process for preparing zinc metal and process for preparing zinc dithionite using electrochemically produced zinc metal - Google Patents

Electrochemical process for preparing zinc metal and process for preparing zinc dithionite using electrochemically produced zinc metal Download PDF

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Publication number
WO2003102275A3
WO2003102275A3 PCT/IB2003/002294 IB0302294W WO03102275A3 WO 2003102275 A3 WO2003102275 A3 WO 2003102275A3 IB 0302294 W IB0302294 W IB 0302294W WO 03102275 A3 WO03102275 A3 WO 03102275A3
Authority
WO
WIPO (PCT)
Prior art keywords
zinc metal
preparing
zinc
metal
electrochemical process
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.)
Ceased
Application number
PCT/IB2003/002294
Other languages
French (fr)
Other versions
WO2003102275A2 (en
Inventor
Baldev Kumar Bandlish
Vincent Wise Martin
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.)
Clariant International Ltd
Original Assignee
Clariant International 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 Clariant International Ltd filed Critical Clariant International Ltd
Priority to AU2003233031A priority Critical patent/AU2003233031A1/en
Publication of WO2003102275A2 publication Critical patent/WO2003102275A2/en
Publication of WO2003102275A3 publication Critical patent/WO2003102275A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C5/00—Electrolytic production, recovery or refining of metal powders or porous metal masses
    • C25C5/02—Electrolytic production, recovery or refining of metal powders or porous metal masses from solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • 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

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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The present invention provides a low corrosion electrochemical process for preparing zinc metal which comprises electrochemically reducing an aqueous alkaline slurry or solution of zinc oxide or any other compound that reacts with an aqueous base to produce zinc oxide, wherein the electrochemical process is carried out in an undivided electrochemical cell and wherein sodium bisulfide (NaSH) is added to the aqueous alkaline slurry or solution. The present invention also provides a process for preparing zinc dithionite, which comprises reacting zinc metal with sulfur dioxide, wherein the zinc metal is produced by the aforementioned electrochemical process.
PCT/IB2003/002294 2002-05-30 2003-05-28 Electrochemical process for preparing zinc metal and process for preparing zinc dithionite using electrochemically produced zinc metal Ceased WO2003102275A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003233031A AU2003233031A1 (en) 2002-05-30 2003-05-28 Electrochemical process for preparing zinc metal and process for preparing zinc dithionite using electrochemically produced zinc metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/158,822 2002-05-30
US10/158,822 US20030221972A1 (en) 2002-05-30 2002-05-30 Electrochemical process for preparing zinc metal and process for preparing zinc dithionite using electrochemically produced zinc metal

Publications (2)

Publication Number Publication Date
WO2003102275A2 WO2003102275A2 (en) 2003-12-11
WO2003102275A3 true WO2003102275A3 (en) 2004-03-18

Family

ID=29582758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/002294 Ceased WO2003102275A2 (en) 2002-05-30 2003-05-28 Electrochemical process for preparing zinc metal and process for preparing zinc dithionite using electrochemically produced zinc metal

Country Status (3)

Country Link
US (1) US20030221972A1 (en)
AU (1) AU2003233031A1 (en)
WO (1) WO2003102275A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024154733A1 (en) * 2023-01-17 2024-07-25 株式会社キノテック Electrolytic product collecting method and system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435703A (en) * 1921-12-17 1922-11-14 Ellsworth John Thayer Recovery of zinc
RU2050325C1 (en) * 1992-10-15 1995-12-20 Шварцман Юрий Абрамович Method for production of zinc dithionite
WO2003083178A1 (en) * 2002-03-28 2003-10-09 Clariant International Ltd Process for the preparation of zinc dithionite

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883421A (en) * 1972-09-12 1975-05-13 Dale Emerson Cutting Measurement of oxidation reduction potential in ore beneficiation
CA2004776C (en) * 1988-12-13 2000-04-25 Claude Wakselman Process for the preparation of perfluoroalkylthioethers
US5378329A (en) * 1990-12-31 1995-01-03 Electric Fuel (E.F.L.) Ltd. Process for the preparation of an alkaline-zinc slurry for use in batteries
US5228958A (en) * 1990-12-31 1993-07-20 Electric Fuel Limited Regenerating slurries for use in zinc-air batteries
US6569311B2 (en) * 2001-02-02 2003-05-27 Clariant Finance (Bvi) Limited Continuous electrochemical process for preparation of zinc powder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435703A (en) * 1921-12-17 1922-11-14 Ellsworth John Thayer Recovery of zinc
RU2050325C1 (en) * 1992-10-15 1995-12-20 Шварцман Юрий Абрамович Method for production of zinc dithionite
WO2003083178A1 (en) * 2002-03-28 2003-10-09 Clariant International Ltd Process for the preparation of zinc dithionite

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ORSZÁGH I ET AL: "Electrochemical regeneration of zinc powder", HUNGARIAN JOURNAL OF INDUSTRIAL CHEMISTRY, LAPK, BUDAPEST, HU, vol. 13, 1985, pages 287 - 299, XP002247954, ISSN: 0133-0276 *

Also Published As

Publication number Publication date
WO2003102275A2 (en) 2003-12-11
US20030221972A1 (en) 2003-12-04
AU2003233031A1 (en) 2003-12-19
AU2003233031A8 (en) 2003-12-19

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