Method for removing contaminants from process streams in metal recovery processes
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United States of America Patent
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Dec 5, 2000
Grant Date -
N/A
app pub date -
Oct 30, 1998
filing date -
Oct 30, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is directed to a process for removing various contaminants (e.g., organic collectors, contaminant metals or spectator ions, and/or suspended and colloidal solids) from process streams in leaching processes. The contaminant removal is performed by one or more membrane filtration systems (e.g., nanofilters, ultrafilters, and/or microfilters) treating process streams including, the pregnant leaching solution, the barren raffinate, and the lean and rich electrolytes.
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