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Electrochemical extraction of copper from scrap steel
Author(s) -
Chin DerTau
Publication year - 1977
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690230405
Subject(s) - scrap , copper , electrochemistry , materials science , electrolyte , cathodic protection , metallurgy , anode , carbon steel , polarization (electrochemistry) , electrode , packed bed , extraction (chemistry) , chemistry , corrosion , chromatography
A packed‐bed electrochemical method is presented for the removal of copper from scrap steel. The method is based on the principle that at certain potentials, steel can be passivated in a suitable electrolyte, whereas copper dissolves anodically. A rotating hemispherical electrode was used to determine the polarization curves of copper and mild steel in various electrolytes. Extraction tests were carried out with an electrochemical cell composed of a cathodic carbon packed bed and an anodic bed packed with synthesized steel scrap.