PROCESSING ORES CONTAINING PRECIOUS METALS
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United States of America
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Issued Date -
Apr 28, 2022
app pub date -
Feb 5, 2020
filing date -
Feb 5, 2020
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Abstract
A method of recovering gold from gold-containing sulphide minerals in an ore that has a recovery-oxidation curve in a graph of % recovery of gold versus % oxidation of the minerals that has a slope of less than 1:1 in a higher % oxidation part of the curve, includes operating at least one oxidation unit to achieve a target % oxidation for sulphur in the ore that is in a higher oxidation part of the curve and producing an output having liberated gold as a consequence of sulphur oxidation in the oxidation unit and allowing variations of the % oxidation in the oxidation unit during the method.
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