Electrochemical system and method
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United States of America Patent
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Mar 16, 1999
Issued Date -
N/A
app pub date -
Sep 25, 1996
filing date -
Apr 1, 1992
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Abstract
An electrochemical apparatus and system for extracting and recovering metals from their compounds using electrochemical cells where the anolyte 10 is connected electrically to the catholyte 11 through an independent set of electrodes 13, 14 immersed in each electrolyte and connected to each other by a conductor 16. The specification details the application of this principle to commercial size cells and systems to extract metals from solutions, from ores in-situ, from ores in heaps and fixed beds, from fine metal concentrates dissolved either at the anode cell or in a separate leaching vessel. Alkaline electrolytes are also given for the extraction and recovery of nickel and copper from their oxide ores. A method for extracting gold from ores or residues is also included.
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