FI19992739A - Method for the electrolytic purification of copper - Google Patents

Method for the electrolytic purification of copper

Info

Publication number
FI19992739A
FI19992739A FI992739A FI19992739A FI19992739A FI 19992739 A FI19992739 A FI 19992739A FI 992739 A FI992739 A FI 992739A FI 19992739 A FI19992739 A FI 19992739A FI 19992739 A FI19992739 A FI 19992739A
Authority
FI
Finland
Prior art keywords
copper
electrolytic
electrolytic purification
current reversal
technique
Prior art date
Application number
FI992739A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI109296B (en
Inventor
Henri Virtanen
Hannu Pouru
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Priority to FI992739A priority Critical patent/FI109296B/en
Priority to US09/723,525 priority patent/US6511591B1/en
Publication of FI19992739A publication Critical patent/FI19992739A/en
Application granted granted Critical
Publication of FI109296B publication Critical patent/FI109296B/en

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
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper

Abstract

The invention relates to a process for the inhibition of anodic passivation during the electrolytic purification of copper when using the technique of periodic current reversal for the electrolysis. The process is particularly suitable for use in the electrolytic refining of copper with a high current density. The irregular current reversal technique is used in the process, where the current reversal is controlled by raising the voltage in the electrolytic vessel. <IMAGE>
FI992739A 1999-12-21 1999-12-21 Process for the electrolytic purification of copper FI109296B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI992739A FI109296B (en) 1999-12-21 1999-12-21 Process for the electrolytic purification of copper
US09/723,525 US6511591B1 (en) 1999-12-21 2000-11-28 Method for the electrolytic refining of copper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI992739 1999-12-21
FI992739A FI109296B (en) 1999-12-21 1999-12-21 Process for the electrolytic purification of copper

Publications (2)

Publication Number Publication Date
FI19992739A true FI19992739A (en) 2001-06-22
FI109296B FI109296B (en) 2002-06-28

Family

ID=8555782

Family Applications (1)

Application Number Title Priority Date Filing Date
FI992739A FI109296B (en) 1999-12-21 1999-12-21 Process for the electrolytic purification of copper

Country Status (2)

Country Link
US (1) US6511591B1 (en)
FI (1) FI109296B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002235189A (en) * 2001-02-05 2002-08-23 Sansha Electric Mfg Co Ltd Power unit for feeding plating current
CN101831553B (en) * 2010-05-28 2012-06-06 北京科技大学 Method for green recovery of waste circuit boards by cyanide-free full-wet whole set process
US8992691B2 (en) 2011-04-05 2015-03-31 International Business Machines Corporation Partial solution replacement in recyclable persulfuric acid cleaning systems
PL397081A1 (en) * 2011-11-22 2013-05-27 Nano-Tech Spólka Z Ograniczona Odpowiedzialnoscia Method for electrorefining of copper
CN113652716B (en) * 2021-09-13 2022-07-12 江西新金叶实业有限公司 Process for electrolyzing high-nickel copper anode by adopting periodic reverse current

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1064852A (en) * 1975-12-31 1979-10-23 Cominco Ltd. Method for evaluating a system for electrodeposition of metals

Also Published As

Publication number Publication date
US6511591B1 (en) 2003-01-28
FI109296B (en) 2002-06-28

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Legal Events

Date Code Title Description
MA Patent expired