C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 15/00 (2006.01) C22B 3/04 (2006.01) C22B 3/22 (2006.01) C22B 3/26 (2006.01) C22B 15/00 (2006.01) C25C 1/08 (2006.01) C25C 1/12 (2006.01) C25C 1/20 (2006.01) C25C 1/22 (2006.01)
Patent
CA 2307500
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. 'Me contaminant removal is performed by one or more membrane filtration systems (22) (e.g., nanofilters, ultrafilters, and/or micro--filters) treating process streams including, the pregnant leaching solution (18), the barren raffinate, and the lean and rich electrolytes.
L'invention concerne un procédé qui permet d'éliminer divers contaminants (collecteurs organiques, métaux de contamination ou ions spectateurs et/ou matières solides en suspension ou colloïdes) de liquides à traiter dans des procédés de lessivage. L'élimination des contaminants s'effectue au moyen d'un ou plusieurs systèmes de filtration sur membrane (22) (nanofiltres, ultrafiltres et/ou microfiltres) et par traitement des liquides, y compris le jus fort de lessivage (18), le raffinat stérile et les électrolytes pauvres ou riches.
Green Dennis H.
Mueller Jeff
Hw Process Technologies Inc.
Johnson Ernest Peter
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