Effect of mechanical activation on thiosulfate leaching of gold from complex sulfide concentrate

作者: Mohsen HASHEMZADEHFINI , Jana FICERIOVÁ , Emad ABKHOSHK , Behrouz Karimi SHAHRAKI

DOI: 10.1016/S1003-6326(11)61118-7

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摘要: Abstract The use of mechanical activation to enhance gold recovery from a CuPbZn complex sulfide concentrate was investigated. effects milling time, ball size, sample ratio and speed on thiosulfate leaching were studied. Under optimum conditions time 1 h, size 20 mm, 1/15 mill 600 r/min, nearly 78% is amorphized, particle decreases d 100 =30 μm =8 μm, specific surface area increases 1.3 m 2 /g 4.6 enhances 17.4 % in non-activated 73.26 %.

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