研究了辛醇对苯甲羟肟酸(BHA)浮选锡石纯矿物的影响，分析了辛醇和 BHA 在锡石表面的吸附机理。实验室浮选实验结果表明，在广泛 pH 区间内，单一辛醇对锡石没有浮选性，但是作为辅助捕收剂，辛醇可以显著降低捕收剂 BHA 的用量，并且使锡石仍保持较高回收率。红外光谱和吸附量研究表明，单一辛醇在锡石表面没有发生吸附，但是辛醇与 BHA 形成吸附组合体而吸附在锡石表面，增强了锡石表面的疏水性；同时辛醇使 BHA在锡石表面的吸附量增加，从而降低了 BHA 的用量。
The effect of octanol in cassiterite flotation using benzohydroxamic acid (BHA) as a collector was investigated. The adsorption mechanism of octanol and BHA on the surface of cassiterite was analyzed by adsorption experiments and infrared spectra analysis. Micro-flotation results indicated that single octanol exhibited almost no collecting power to cassiterite over a wide pH range. However, as an auxiliary collector, octanol could markedly decrease the consumption of collector BHA and keep the recovery of cassiterite in high level. The results of adsorption experiments and infrared spectra demonstrated that single octanol was not adsorbed on the surface of cassiterite. It formed adsorption connected with BHA on the surface of cassiterite, and enhanced the hydrophobicity of cassiterite. Octanol promoted the adsorption amount of BHA on the cassiterite surface, and decreased the consumption of BHA.
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