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外文会议>Annual Conference of Metallurgists
>ENHANCING CIL GOLD EXTRACTION BY HARD PARAFFIN WAX BLANKING OF DOUBLE REFRACTORY ORE PRE- OR POST-PRESSURE OXIDATION (POX)
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ENHANCING CIL GOLD EXTRACTION BY HARD PARAFFIN WAX BLANKING OF DOUBLE REFRACTORY ORE PRE- OR POST-PRESSURE OXIDATION (POX)
As part of a general review of processing double refractory ores through Barrick Gold's autoclaves / CIL facility at Goldstrike, blanking the preg robbing native carbon in the process solids with hard (m.p. 55 - 60 °C) paraffin wax was studied, specifically in relation to pressure oxidation. The improvement in CIL gold extraction was found to depend on the wax addition point, with hot, dry contacting of the ore in the presence of wax - prior to POX - yielding the largest, most consistent improvement in gold extraction.
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