新型镍矿捕收剂浮选试验研究

On the Flotation Test of a New Nickel Minerals Collector

摘要: 针对某镍矿矿石日趋贫细杂化，应用传统捕收剂浮选回收率下降的特点，进行新型镍矿捕收剂CH₁₂的浮选试验研究。结果表明，CH₁₂是一种有效的镍矿捕收剂，可以在磨矿细度为-0.074 mm粒级占76 %的条件下，使镍矿的粗选浮选回收率达到90 %以上；同时应用抑制剂CMC，强烈抑制脉石矿物，可以使镍精矿品位提高到6.85 %，Mg的含量降低到5.30 %，达到了工业熔炼的要求。

Abstract: In line with low grade nickel and dropping recovery rate by traditional flotation method, this paper experiments on CH₁₂ as a new collector. The nickel recovery rate reaches 90.43 % when the powder grade is 76 % for the super fine powder of -0.074 mm. The results show that CH₁₂ is effective for nickel flotation. Using the depressor of CMC to depress the vein stone the preparation concentrate grade could increase to 6.85 % which could be used for industry smelting.