Resin-in-leach process to recover nickel and/or cobalt in ore leaching pulps
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United States of America Patent
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Mar 8, 2011
Grant Date -
Mar 5, 2009
app pub date -
Jul 31, 2008
filing date -
Aug 28, 2007
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Abstract
A hydrometallurgical resin-in-leach (RIL) process for directly recovering nickel and/or cobalt. Simultaneous pulp leaching by adding an acid or base, dissolves the metals of interest with adsorption of the metals rendered soluble in on ionic exchange resin. Following elution of the changed resin, purification of nickel and cobalt present in the eluate can be recovered by conventional methods, such as precipitation, extraction by solvents and membranes. The regenerated resin is recirculated for further use.
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