Multi-column sequenced separation process for separating an ionic metal derivative
AssigneeApplexion
InventorsMarc-André Theoleyre, Francis Gula
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Abstract
The subject of the present disclosure is a multi-column sequenced separation process and a drive for implementing this process. The disclosure applies particularly to the separation of metal derivatives such as uranium, nickel, copper, cobalt and other precious metals present in leaching effluents in hydrometallurgical processes.
Claims15
A multi-column sequenced separation process on resin, the process comprising separating an ionic metal derivative from a leaching solution containing an ionic metal derivative, by passing said solution on a fixed resin bed and comprising at least three zones, liquid operably flowing between adjacent zones and between a last and a first zone, said process further comprising several sequences, each sequence comprising at least one step chosen from an adsorption step, a rinsing step, a desorption step, implemented simultaneously or not, each following sequence being done by the displacement of the fronts in said zones in a downstream direction by substantially a same increment before a periodic displacement of introduction and withdrawal points.
Dependencies are inferred from the claim text.