The Oxidation Pretreatment of a Sulfidic Refractory Gold Ore with Pyrolusite

Su Rong Hu; Chao Wang; Qi Feng Wei

doi:10.4028/www.scientific.net/AMR.550-553.2891

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553The Oxidation Pretreatment of a Sulfidic...

The Oxidation Pretreatment of a Sulfidic Refractory Gold Ore with Pyrolusite

Abstract:

An attempt has been made to study the pretreatment of sulfidic refractory gold ore with pyrolusite. The inﬂuences of various parameters were studied to optimize the conditions. The optimum leaching conditions were pyrolusite/gold ore mass ratio of 3.0, H₂SO₄ concentration of 3.0 M, temperature of 100°C, particle size of 45μm, stirring speed of 200 rpm. After the pretreatment, gold and silver were exposed, these made the extraction of the precious metal in the gold ore much easier.