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US 12,338,509 B2Granted
Byproduct scandium recovery from low grade primary metal oxide ores
AssigneeScandium International Mining Corporation
InventorWillem P. C. Duyvesteyn
Life of this patent
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Abstract
A method for extracting metal values from a low grade primary metal oxide ore feedstock is provided. The method includes providing a low grade primary metal oxide ore containing a primary metal and scandium; subjecting the ore to acid leaching, thus yielding an acidic leachate; extracting the primary metal and scandium from the leachate, thereby yielding an acidic barren leachate; and using the acidic barren leachate in a subsequent iteration of the acid leaching step.
Claims15
A method for extracting metal values from a low grade primary metal oxide ore feedstock, comprising:
- providing a low grade primary metal oxide ore feedstock containing a primary metal and scandium;
- subjecting the ore to acid leaching, thus yielding an acidic leachate;
- extracting the primary metal and scandium from the leachate, thereby yielding an acidic-barren leachate;
- and
- using the acidic barren leachate in a subsequent iteration of the acid leaching step.
2 more elements
Dependencies are inferred from the claim text.