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Correspondence of bubble size and frother partitioning in flotationZHANG Wei(张炜)1, 2, Jan E. Nesset2, James A. Finch2(1. Mining & Mineral Resources Division, Department of Business Administration... created in the flotation process is of great importance to the efficiency of the mineral separation achieved. Meanwhile, it is believed that frother transport between phases is perhaps the most important......
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tension; frother 1 Introduction Froth flotation widely utilises differences in physicochemical surface properties of various minerals to achieve specific separation [1]. The efficiency... temperature. The ranges selected for all the variables can be considered representative of industrial practice, with some extension above and below typical operating range for frother concentration......
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on gangue recovery in froth was investigated. Effects of frother type and collector dosage on flotation performance were tested at pH 10. The results were evaluated statistically by two-way analysis... concentration; frother type; entrainment; particle size; two-way ANOVA 1 Introduction Froth flotation is a separation technique applied to various types of ores using differences in the interfacial......
, the polar head group of the frother molecule was connected with water molecules by hydrogen bonding, while the non-polar group showed that hydrophobic property and water molecules around it were repelled away. The adsorption of water molecules on single frother molecule suggests that the complexes of α-terpineol-7H2O, MIBC-7H2O and DF200-13H2O reach their stable structure. The hydration shell......
(TPnB) were measured at the same condition, and 2×10-4 mol/L and 5×10-2 mol/L were found to be the inflexions of bubble size changes. Key words: frother; bubble; image processing; data screening... reagent, frother is used to improve the characteristic of pulp in flotation. The frother effect on bubble size distribution in flotation process has been studied by GRAU et al [2-4] and AZGOMI et al [5-6......
studied. The effects of variety and dosage of frother,surface tension,foam stability on the floatability of fine serpentine were investigated by flotation tests, and the measurement of surface... angle of serpentine is only 37.5° with a poor natural floatability. The addition of frother can not change the wettability of the serpentine, but can significantly reduce the solution surface tension......
BK-201 is used. Key words: frother; froth column; two-phase foam; froth characteristic; froth entrainment 在微细粒矿物浮选过程中,亲水的脉石矿物机械夹带进入精矿中,导致精矿品位降低,成为微细粒矿物浮选过程中的一大难题[1-2].机械夹带常分为以下几种方式:矿泥罩盖,颗粒连生,泡沫夹带以及夹杂...的函数作图,得到泡沫含液率随泡沫层高度变化的曲线图,如图8所示. 表1 使用BK-201起泡剂时泡沫静压强与泡沫层高度的多项式拟合结果 Table 1 Polynomial fitting results of foam static pressure and height using BK-201 as frother 图8 不同BK-201浓度时泡沫高度......
:Effect of frothers in preventing bubble coalescence during flotation of minerals has long been investigated. To evaluate the performance of a frother, an apparatus to measure the bubble size is a basic... to serve this purpose. Two parameters which are thought to influence the bubble size measurements by McGill bubble viewer include water quality and frother concentration in the chamber. Results show......