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Influence of particle size and reagent dosage on the performance of apatite flotation

机译：粒径和试剂用量对磷灰石浮选性能的影响

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摘要

Mineral particle size plays a significant role on the flotation process. The flotation performance (grade and recovery) of apatite particles in a complex carbonatite ore from Brazil was investigated in a flotation column as a function of particle size and reagent concentrations. Flotation feed samples were also mineralogically and chemically characterized. For the bench scale flotation experiments, the sample was fractioned into different size intervals. The experiments were conducted according to a factorial experimental design. The experimental data were analyzed using P2O5 grade/recovery curves, response surface methodology and canonical analysis. An optimum particle size was found under the experimental conditions studied. The P2O5 grade and recovery rates obtained with a particle size between 37 μm and 105 μm were simultaneously higher than those required industrially.
机译：矿物粒度在浮选过程中起着重要作用。在浮选塔中研究了巴西复杂碳酸盐矿石中磷灰石颗粒的浮选性能（品位和回收率），该浮选性能是粒度和试剂浓度的函数。还对浮选饲料样品进行了矿物学和化学表征。对于台式浮选实验，将样品分为不同的大小区间。根据析因实验设计进行实验。使用P2O5品位/回收率曲线，响应面法和规范分析对实验数据进行了分析。在研究的实验条件下发现了最佳粒径。粒径介于37μm和105μm之间的P2O5品位和回收率同时高于工业要求的P2O5品位和回收率。

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