SE8503749L - PROCEDURE TO REDUCE CORROSION OF LEAD ANODES IN COPPER EXTRACT ELECTROLYSIS - Google Patents

PROCEDURE TO REDUCE CORROSION OF LEAD ANODES IN COPPER EXTRACT ELECTROLYSIS

Info

Publication number
SE8503749L
SE8503749L SE8503749A SE8503749A SE8503749L SE 8503749 L SE8503749 L SE 8503749L SE 8503749 A SE8503749 A SE 8503749A SE 8503749 A SE8503749 A SE 8503749A SE 8503749 L SE8503749 L SE 8503749L
Authority
SE
Sweden
Prior art keywords
electrolysis
procedure
reduce corrosion
corrosion
copper
Prior art date
Application number
SE8503749A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8503749D0 (en
Inventor
B Langner
G Kunst
Original Assignee
Norddeutsche Affinerie
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 Norddeutsche Affinerie filed Critical Norddeutsche Affinerie
Publication of SE8503749D0 publication Critical patent/SE8503749D0/en
Publication of SE8503749L publication Critical patent/SE8503749L/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

A process is described for reducing the corrosion such as pitting corrosion of lead anodes used in the electrolytic extraction of copper from sulphuric-acid copper-containing electrolytes. In order to reduce corrosion and avoid warping of the anodes, the electrolyte is admixed with iron ions in an amount of from 0.5 to 10, preferably from 3 to 8, g/l. An electrolyte having a chlorine ion content of from 50 to 300, preferably from 150 to 200, mg/l is employed. According to a further refinement of the invention, a lead anode having a content of from 1 to 5%, preferably from 2 to 4%, of antimony is used.
SE8503749A 1984-08-09 1985-08-08 PROCEDURE TO REDUCE CORROSION OF LEAD ANODES IN COPPER EXTRACT ELECTROLYSIS SE8503749L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843429331 DE3429331A1 (en) 1984-08-09 1984-08-09 Process for reducing the corrosion of lead anodes in copper extraction electrolyses

Publications (2)

Publication Number Publication Date
SE8503749D0 SE8503749D0 (en) 1985-08-08
SE8503749L true SE8503749L (en) 1986-02-10

Family

ID=6242688

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8503749A SE8503749L (en) 1984-08-09 1985-08-08 PROCEDURE TO REDUCE CORROSION OF LEAD ANODES IN COPPER EXTRACT ELECTROLYSIS

Country Status (3)

Country Link
BE (1) BE903037A (en)
DE (1) DE3429331A1 (en)
SE (1) SE8503749L (en)

Also Published As

Publication number Publication date
BE903037A (en) 1986-02-10
SE8503749D0 (en) 1985-08-08
DE3429331A1 (en) 1986-02-20

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