矿浆中浮选药剂与硫化矿物表面的相互作用发生在浮选体系的双电层中。只有黄铜矿存在时 ,体系的双电层预料不大会受铜和铁类离子组分的影响。但是 ,这些离子的存在似乎极大地改变了硫铜钴矿的双电层性质 ,使表面荷正电。根据硫化矿物表面与巯基捕收剂间的相互作用是电化学作用的假设 ,则荷正电的表面预料会受到还原作用 ,有利于捕收剂的阳极氧化 ,形成疏水的二聚物 ,会使该表面可浮。或者假定相互作用是通过离子交换反应发生的 ,则随着表面组分羟基的增多 ,离子型捕收剂组分的交换能力也会提高它们所在表面的疏水性。 The interaction between the flotation reagent in the slurry and the surface of sulphide minerals occurs in the electrical double layer of the flotation system. Only in the presence of chalcopyrite, the electrical double layer of the system is not expected to be affected by the copper and iron ion species. However, the presence of these ions appears to have greatly altered the electrical double layer properties of the copper-cobalt-cobalt deposits, making the surface positively charged. According to the hypothesis that the interaction between sulfide mineral surface and the thiol-based collector is electrochemical, the positively charged surface is expected to be reduced, favors the anodic oxidation of the collector to form a hydrophobic dimer, The surface floats. Alternatively, assuming that the interaction occurs through ion exchange reactions, the exchangeability of the ionic collector components also increases the hydrophobicity of the surface where they are present as the hydroxyl content of the surface components increases.