Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Reexamination Certificate
2011-03-08
2011-03-08
Wyszomierski, George (Department: 1733)
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
C205S587000, C205S594000, C423S139000
Reexamination Certificate
active
07901484
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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Arent & Fox LLP
McGuthry-Banks Tima M
Vale Inco Limited
Wyszomierski George
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