METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING MATERIAL
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United States of America Patent
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Sep 12, 2024
app pub date -
May 10, 2024
filing date -
Sep 20, 2021
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Abstract
Methods for recovering a metal value from a metal-bearing material are provided. The method comprises agglomerating the metal-bearing material with an agglomeration solution comprising a raffinate, an oxidant, and citric acid or salts thereof to form an agglomerated metal-bearing material; leaching the agglomerated metal-bearing material with a leaching solution comprising the raffinate and the citric acid or salts thereof to produce a pregnant leaching solution and a leached material; re-oxidizing the leached material with a curing solution comprising the raffinate and the oxidant; and recovering the metal value from the pregnant leach solution to produce the raffinate.
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