Method of metal recovery
AssigneeAlderley Gold Corp.
InventorsRandy Earl Buffington, Art Sabio Ibrado, Alan Nigel Pangbourne
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Abstract
A method of recovering a metal, the method comprising: physically processing the material; curing the material; contacting the material with an alkali and/or oxidizing agent; contacting the material with a lixiviant to form a pregnant leach solution; and separating the metal from the pregnant leach solution. The method may further comprise agglomerating the material. The alkali may comprise a carbonate, sodium hydroxide, or a combination thereof. The method may further comprise regenerating the sodium hydroxide. The metal may be a precious metal.
Claims20
A method of recovering a metal, the method comprising:
- physically processing a material;
- contacting the material with an alkali solution;
- oxidizing the material;
- regenerating an alkali;
- recycling the regenerated alkali to the alkali solution;
- contacting the material with a lixiviant to form a pregnant leach solution;
- and
- separating the metal from the pregnant leach solution.
Dependencies are inferred from the claim text.