应用分子力学法研究铜离子活化闪锌矿作用机理  

Activation Mechanism of Sphalerite Flotation in the Presence of Cu^(2+) by Molecular Mechanics

作　　者：罗思岗[1,2] 

机构地区：[1]矿物加工科学与技术国家重点实验室 [2]北京矿冶研究总院

出　　处：《现代矿业》2012年第3期7-9,共3页Modern Mining

基　　金：国家863科技计划项目(编号:2006AA06Z138)

摘　　要：用分子力学方法对Cu2+与闪锌矿作用以及Cu2+作用后闪锌矿表面与丁基黄药相互作用进行模拟和计算,结果表明:Cu2+对闪锌矿起到很好的活化作用,Cu2+在闪锌矿表面的活化机理是发生键合作用;Cu2+活化后,丁基黄药同时吸附在闪锌矿表面Cu和Zn原子上。浮选试验和XPS测试结果验证了分子模拟所推出的结论,分子力学模拟方法可以较好解释矿物浮选作用机理。By molecular mechanics simulated and caculated the action between Cu2＋ and sphalerite,the interaction of the surface of sphalerite after the action of Cu2＋ with butyl xanthate.The results show that Cu2＋ can activate the flotation of sphalerite,the adsorption of Cu2＋ on sphalerite may be regarded as chemical adsorption,after sphalerite activated by Cu2＋,copper and zinc have interacted with butyl xanthate.Flotation tests and XPS analysis verify the conclusions made by molecular mechanics,and prove that molecular mechanics method can be used to reveal the activation mechanism of mineral flotation.

关 键 词：分子力学 CU2+ 闪锌矿 活化机理 

分 类 号：TD952[矿业工程—选矿]