【摘要】 贵州省三都地区卡林型金矿石金呈-2μm次显微粒状嵌布于载体矿物毒砂和黄铁矿中,载体矿物又以-43μm细粒嵌布于脉石矿物中,且矿石中含有大量黏土矿物和泥质矿物。应用Na2CO3入磨活化、矿泥分散浮选工艺,不仅免去了复杂的脱泥工艺,减少了细泥带金损失,而且浮选指标比过去有较大突破,金精矿品位同是50g/t,回收率则由70%增加至81.3%。更多还原

【Abstract】 Hypo-micro gold mineral particles minus 43μm of the calin gold ore from Guizhou Province’ Sandu area.disseminate in pyrite and arsenopyrite minus 43μm occurring in gangue minerals.The ore contains largely clay and slime minerals.By the flotation process adding Na₂CO₃ into mill for activating pyrite and arsenopyrite and dispersing slime disuses a complex desliming process decreasing gold loss with slime and increasing flotation yields compared with that of formal experiment.The gold recoveries increased from 70% to 81.3% at same concentrate gold grade of 50g /t.更多还原