Biooxidation Pretreatment Cyanide Leaching of a Flotation Gold Concentrate

Chao Zhu; Bao Liang Ge; Zhao Yi Lu; Wen Zhu

doi:10.4028/www.scientific.net/AMR.581-582.1106

Paper Titles

The Study of Color Film Phosphating Process in Steel before Coating
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Ratio of Magnesium in Prepared High Titanium Ferroalloy with Titanium Concentrate and Titanium Slag by Thermite Reduction
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Research on Separation of Copper-Lead Mixed Concentrate
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An Electrochemical Corrosion Study of SAE1045 Steel in SiO₂ Gel with 3 wt% Sodium Chloride
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Biooxidation Pretreatment Cyanide Leaching of a Flotation Gold Concentrate
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Research of Refractory Oxidized Lead-Zinc Ore in Lanping
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The Effects of Nd on Lead Anode for Zinc Electrowinning
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Study on Preparation of High-Grade Titanium-Rich Material from Modified Titanium Material by Microwave Selective Leaching
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The Investigation of Coke Breeze Demineralization on Temperature
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Biooxidation Pretreatment Cyanide Leaching of a Flotation Gold Concentrate

Abstract:

This study reached a gold ore which contain 3.83g/t gold, to investigate the available gold recover methods, direct cyanide leaching test and “biooxidation-cyanide” leaching process were utilized after enrich gold by flotation. When regrinding the flotation concentrate to 95% -325mm, the leaching rate of “biooxidation-cyanide” leaching reached 94.47%, compare with direct leaching, the leaching rate increased almost 67%. Obviously bacterium oxidation is a useful pretreatment for gold leaching.