Leaching Experiment Study on Silver Ore in Yunnan Province

Dan Liu; Jin Lin Li; Shu Ming Wen; Yi Jie Wang

doi:10.4028/www.scientific.net/AMR.1094.393

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Gas Seepage Law in Condition of Bound Water of Low Permeability and Tight Sandstone Gas Reservoir
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Investigation on Copper Flotation from a Complex Copper Ore, Yunnan Province
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Leaching Experiment Study on Silver Ore in Yunnan Province
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Leaching Experiment Study on Silver Ore in Yunnan Province

Abstract:

A leaching experiment was launched on silver ore whose silver content is 101.6g/t in Yunnan province, China. Technological mineralogy research of the ore indicates that the content of carbon which is bad for leaching is 2.23%. Leachable silver minerals mainly are oxidized silver, elemental silver and silver sulfide. And the theory leaching ratio of the silver ore is 67.43%. When the content of-74um is 75%; dosage of sodium cyanide is 4.5kg/t; dosage of lime is 0.5kg/t; velocity of agitation is 400r/min; leaching time is 24h, a best indicator which leaching ratio is 70.47% can be obtained. Meanwhile, silver in lixivium is 20.42mg/L.