电化学调控浮选能带模型及应用(Ⅱ)——黄药与硫化矿物作用的能带模型
来源期刊：中国有色金属学报2000年第3期
论文作者：陈建华 冯其明 卢毅屏
文章页码：426 - 429
关键词：能带模型； 硫化矿物； 双黄药； 电化学浮选
Key words：model of energy bands; sulphide minerals; dixanthogen; electrochemical flotation
摘 要：用能带模型研究了黄药与硫化矿物的作用机理， 说明了硫化矿物表面捕收剂膜的稳定性与半导体能带结构的关系，并推导出黄铁矿Barsky关系式。对矿物表面双黄药解吸作用的研究，表明矿物表面双黄药的解吸主要受控于矿物电子能级，而半导体矿物边缘能级和费米能级影响矿物表面双黄药的稳定性，改变硫化矿物的费米能级或边缘能级可以实现双黄药的解吸。根据电化学浮选抑制的能带模型，可开发出高效硫化矿有机抑制剂。
Abstract: The interaction mechanism between xanthate and sulphide minerals was discussed by means of energy band model, and the correlation of stability of collector's coating with energy band structure of semiconductor was also illustrated, meanwhile the Barsky formula was deduced from theory. The correlation between desorption of dixanthogen on the mineral surface and energy level of mineral was researched. The results show that the desorption of dixanthogen on mineral surface is mainly controlled by electronic level of minerals; Fermi level and edge level can affect the stability of dixanthogen electrochemically adsorbing on the mineral surface. Based upon energy band model of electrochemical separation, new organic depressants can be developed.
