黄铁矿包裹型难浸金精矿-软锰矿氧化处理过程中,生成单质硫,影响了后续氰化浸金效果,为此进行了含单质硫氧化渣的深入氧化研究。结果表明,在碱性环境下,用过氧化钠作氧化剂实现了单质硫的高效氧化;当渣中单质硫含量低于1.5%时,氰化浸出时金的浸出率达到90%以上。 Pyrite-type refractory gold concentrate - pyrolusite pyroxene oxidation process, the formation of elemental sulfur, affecting the follow-up of cyanide leaching effect, for which the elemental sulfur oxide oxidation in-depth study. The results showed that the oxidation of elemental sulfur was achieved with sodium peroxide as oxidizing agent in alkaline environment. When the content of elemental sulfur in the slag was less than 1.5%, the leaching rate of gold reached over 90% when cyanidation leached.