Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Utilizing plural distinct electrolytic cells where the cells...
Patent
1995-06-06
1997-09-23
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Utilizing plural distinct electrolytic cells where the cells...
205580, 205581, 423 24, C25C 112, C22B 330, C22B 328
Patent
active
056700350
ABSTRACT:
An improved process is described for the recovery of copper from an aqueous feed solution using solvent extraction and electrowinning in which the electrowinning is conducted in a first step wherein the electrolyte is flowing perpendicular to the cathode surface without auxiliary mixing of the electrolyte between electrodes, and a second step wherein the electrolyte is flowing parallel to the cathode surface. In a second embodiment, solvent extraction of copper and solvent extraction of acid are conducted in alternate steps to allow more complete recovery of copper.
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Chemical Abstracts 78:118,395, 1973.
MacKenzie J. Murdoch
Virnig Michael J.
Henkel Corporation
Jaeschke Wayne C.
Mee Brendan
Niebling John
Span Patrick J.
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