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研究了应用不同捕收剂时蓝晶石的可浮性。用蓝晶石纯矿物进行了微量浮选试验 ,用蓝晶石矿石进行了小型浮选试验。测定了纯蓝晶石表面电荷 ,结果发现 ,蓝晶石的等电点为pH 5 .9。在 pH高于等电点时 ,矿物表面荷负电 ,可用胺类捕收剂浮选蓝晶石。相反地 ,在酸性 pH范围 ,蓝晶石表面荷正电 ,用烷基硫酸盐捕收剂 (十二烷基硫酸钠 )浮选蓝晶石比较有效。在中性和弱碱性pH范围用油酸盐可以浮选蓝晶石。用烷基磺酸盐捕收剂 (AERO系列捕收剂 )可以获得含 5 8%～ 60 %Al2 O3,回收率为 80 %～ 85 %的可销售的蓝晶石精矿。试验发现 ,在用油酸盐捕收剂时 ,抑制剂对脉石矿物没有效。并且 ,还发现矿泥对蓝晶石没有负面影响。但是 ,与瓷球磨机磨矿相比 ,钢球磨机磨矿降低了蓝晶石的浮选回收率
The buoyancy of kyanite with different collectors was studied. A trace flotation test was carried out with kyanite pure mineral and a small flotation test was carried out with kyanite ore. The surface charge of pure kyanite was measured. As a result, it was found that the kryptonite had an isoelectric point of pH 5.9. When the pH is higher than the isoelectric point, the surface of the mineral is negatively charged, available amine collector flotation kyanite. Conversely, it is more effective to float kyanite with an alkyl sulfate collector (sodium dodecyl sulfate) in the acidic pH range where the kyanite surface is positively charged. Kerogen flotation of kyanite with oleate at neutral and weakly basic pH ranges. With alkyl sulfonate collector (AERO series collector) can get 58% ~ 60% Al2 O3, recovery of 80% to 85% of sapphire ore available for sale. The test found that the use of oleate collector, the inhibitor is not effective on gangue minerals. Also, the slime was found to have no negative effect on kyanite. However, grinding of steel ball mills reduces the flotation recovery of kyanite compared to porcelain ball mill grinding