EP1417357B1 - Additive zur verhinderung der wasserstoffbildung bei der elektrolytischen gewinnung von zink - Google Patents

Additive zur verhinderung der wasserstoffbildung bei der elektrolytischen gewinnung von zink Download PDF

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Publication number
EP1417357B1
EP1417357B1 EP02754027A EP02754027A EP1417357B1 EP 1417357 B1 EP1417357 B1 EP 1417357B1 EP 02754027 A EP02754027 A EP 02754027A EP 02754027 A EP02754027 A EP 02754027A EP 1417357 B1 EP1417357 B1 EP 1417357B1
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EP
European Patent Office
Prior art keywords
cpc
zinc
zinc electrowinning
current efficiency
electrowinning
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
EP02754027A
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English (en)
French (fr)
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EP1417357A2 (de
Inventor
Elod Lajos Gyenge
Joey Chung-Yen Jung
Klaus Heinrich Oehr
Steven Splinter
Colin W. Oloman
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.)
MagPower Systems Inc
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MagPower Systems Inc
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Publication date
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Publication of EP1417357A2 publication Critical patent/EP1417357A2/de
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Publication of EP1417357B1 publication Critical patent/EP1417357B1/de
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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

Definitions

  • the invention is related to additives for zinc electrowinning that inhibit hydrogen evolution and/or improve current efficiency for zinc electrodeposition, specifically cetylpyridinium-based additives.
  • Cetylpyridinium chloride (CPC), a cetylpyridinium salt, was tested as an additive in a zinc electrowinning process in two separate zinc electrowinning electrolyte compositions: 1) with antimony and 2) with both antimony and glue.
  • the CPC additive had the most significant influence in the presence of antimony or antimony + glue combination, where it increased the current efficiency by 23.2% and 7.6%, respectively. Moreover, the presence of 0.05 mM CPC did not increase the overall cell voltage.
  • a constant current of 0.045 A representing an electrowinning current density of 450 amperes/meter 2 , was applied for either 4 or 20 hours to a non-agitated electrolyte.
  • the electrode assembly was removed from the glass beaker, rinsed with distilled water and the cathode deposit carefully scraped off and weighed with four digits precision using a digital Mettler AE 100 analytical balance.
  • the test cells were rinsed between experiments with distilled water and acetone in order to remove traces of the organic additives. Replicates were also performed and the standard deviation was estimated.
  • CPC cetylpyridinium chloride
  • Antimony (Sb) in 0.04 mg/l (milligrams/litre) concentration was added as antimony - potassium tartrate to the zinc electrowinning electrolyte. Both four and twenty hour runs were performed. The experimental results of the four-hour runs are summarized in Table 1.
  • Example 2 Similar experiments to those in Example 1 were performed with an electrolyte containing 0.04 mg/l of Sb and 10 mg/l of glue (e.g. "pearl glue” supplied by Hudson Industries, Johnstown, New York). Both 4 and 20 hour runs were carried out. The effect of the CPC additive on the zinc electrowinning current efficiency in the 4 hour runs is shown in Table 3 .
  • glue e.g. "pearl glue” supplied by Hudson Industries, Johnstown, New York.
  • the cell voltage is another important figure of merit of the electrowinning process.
  • An increase in the cell voltage represents an increase in the amount of energy required and, therefore, a less efficient electrowinning process.
  • Table 5 shows that using 0.05 mM CPC in conjunction with Sb and glue did not induce an increase of the cell voltage. Effect of CPC on the average cell voltage in 4 hour experiments with 0.04 mg/l Sb and 10 mg/l glue in the electrolyte. Conditions: Temperature: 37 °C Time: 4 hours Average cell voltage (V) No additive 2.83 CPC 0.05 mM 2.83

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  • 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Primary Cells (AREA)

Claims (9)

  1. Verfahren zur verbesserten elektrolytischen Gewinnung von Zink, umfassend; Zusetzen eines Cetylpyridinium-Salzes als Additiv zu einem Elektrolyten zur elektrolytischen Gewinnung von Zink.
  2. Verfahren nach Anspruch 1, worin das Cetylpyridinium-Salz ein Cetylpyridiniumhalogenid ist.
  3. Verfahren nach Anspruch 2, worin das Cetylpyridiniumhalogenid ein Cetylpyridiniumchlorid ist.
  4. Verfahren nach Anspruch 3, worin das Cetylpyridiniumchlorid eine Konzentration in der Lösung zur elektrolytischen Gewinnung von Zink von 0,05 Millimol (mM) hat.
  5. Verfahren nach Anspruch 1, worin der Elektrolyt zur elektrolytischen Gewinnung von Zink Zinksulfat enthält.
  6. Verfahren nach Anspruch 1, worin der Elektrolyt zur elektrolytischen Gewinnung von Zink Antimon enthält
  7. Verfahren nach Anspruch 1, worin der Elektrolyt zur elektrolytischen Gewinnung von Zink Leim enthält.
  8. Verfahren nach Anspruch 7, worin der Leim tierischer Leim ist.
  9. Verfahren nach Anspruch 8, worin der tierische Leim Gelatine ist.
EP02754027A 2001-08-14 2002-08-13 Additive zur verhinderung der wasserstoffbildung bei der elektrolytischen gewinnung von zink Expired - Lifetime EP1417357B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31182501P 2001-08-14 2001-08-14
US311825P 2001-08-14
PCT/CA2002/001250 WO2003016593A2 (en) 2001-08-14 2002-08-13 Hydrogen evolution inhibiting additives for zinc electrowinning

Publications (2)

Publication Number Publication Date
EP1417357A2 EP1417357A2 (de) 2004-05-12
EP1417357B1 true EP1417357B1 (de) 2005-03-16

Family

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EP02754027A Expired - Lifetime EP1417357B1 (de) 2001-08-14 2002-08-13 Additive zur verhinderung der wasserstoffbildung bei der elektrolytischen gewinnung von zink

Country Status (16)

Country Link
US (1) US20050011769A1 (de)
EP (1) EP1417357B1 (de)
JP (1) JP2004537653A (de)
KR (1) KR100599993B1 (de)
CN (1) CN100342061C (de)
AU (1) AU2002322888B2 (de)
BR (1) BR0211933A (de)
CA (1) CA2457071C (de)
DE (1) DE60203301T2 (de)
ES (1) ES2238586T3 (de)
HK (1) HK1075920A1 (de)
MX (1) MXPA04001459A (de)
NO (1) NO20040651L (de)
RU (1) RU2288299C2 (de)
WO (1) WO2003016593A2 (de)
ZA (1) ZA200405167B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100540748C (zh) * 2006-06-15 2009-09-16 云南冶金集团总公司 组合胶质添加剂
CN103993330A (zh) * 2014-05-07 2014-08-20 成都理工大学 锌氨络合物水溶液电解锌技术
CN106676578B (zh) * 2015-11-11 2018-09-28 沈阳有色金属研究院 一种锌电积新型高效联合添加剂
CN110512236B (zh) * 2019-09-27 2021-05-04 中国科学院长春应用化学研究所 一种组合添加剂及其在电积锌中的应用
CN115133159A (zh) * 2022-09-01 2022-09-30 河南师范大学 一种功能性水系锌离子电池电解液及其制备方法和应用

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028199A (en) * 1974-08-05 1977-06-07 National Development Research Corporation Method of producing metal powder
CA1064852A (en) * 1975-12-31 1979-10-23 Cominco Ltd. Method for evaluating a system for electrodeposition of metals
CA1111125A (en) * 1978-07-05 1981-10-20 Robert C. Kerby Method and apparatus for control of electrowinning of zinc
US4699696A (en) * 1986-04-15 1987-10-13 Omi International Corporation Zinc-nickel alloy electrolyte and process
US4717458A (en) * 1986-10-20 1988-01-05 Omi International Corporation Zinc and zinc alloy electrolyte and process
CN1023818C (zh) * 1991-03-19 1994-02-16 昆明工学院 热镀锌渣真空蒸馏提锌方法及其设备
US5635051A (en) * 1995-08-30 1997-06-03 The Regents Of The University Of California Intense yet energy-efficient process for electrowinning of zinc in mobile particle beds
US6086691A (en) * 1997-08-04 2000-07-11 Lehockey; Edward M. Metallurgical process for manufacturing electrowinning lead alloy electrodes
CN1065919C (zh) * 1998-04-24 2001-05-16 昆明理工大学 硬锌真空蒸馏提锌和富集锗铟银
US6238542B1 (en) * 1998-09-15 2001-05-29 Thomas Helden Water soluble brighteners for zinc and zinc alloy electrolytes
EP1013799A1 (de) * 1998-12-23 2000-06-28 Half Tone Ltd. Bad und Verfahren zur galvanischen Abscheidung von Gold und Goldlegierungen

Also Published As

Publication number Publication date
WO2003016593A3 (en) 2003-10-09
RU2004107493A (ru) 2005-06-10
CN1653209A (zh) 2005-08-10
HK1075920A1 (en) 2005-12-30
BR0211933A (pt) 2004-10-26
KR100599993B1 (ko) 2006-07-13
DE60203301T2 (de) 2006-04-13
ZA200405167B (en) 2005-06-27
KR20040044443A (ko) 2004-05-28
CA2457071C (en) 2007-05-29
ES2238586T3 (es) 2005-09-01
DE60203301D1 (de) 2005-04-21
WO2003016593A2 (en) 2003-02-27
RU2288299C2 (ru) 2006-11-27
AU2002322888B2 (en) 2007-06-21
EP1417357A2 (de) 2004-05-12
MXPA04001459A (es) 2005-02-17
CA2457071A1 (en) 2003-02-27
US20050011769A1 (en) 2005-01-20
JP2004537653A (ja) 2004-12-16
CN100342061C (zh) 2007-10-10
NO20040651L (no) 2004-04-16

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