应用分子力学法研究铜离子活化闪锌矿作用机理

现代矿业 ›› 2012, Vol. 28 ›› Issue (03): 7-9.

应用分子力学法研究铜离子活化闪锌矿作用机理

罗思岗^1,2

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

出版日期:2012-03-27 发布日期:2012-03-30
基金资助:
* 国家863科技计划项目（编号：2006AA06Z138）。

Activation Mechanism of Sphalerite Flotation in the Presence of Cu²⁺ by Molecular Mechanics

Luo Sigang^1,2

1.State Key Laboratory of Mineral Processing Science and Technology；2.Beijing General Research Institute of Mining and Metallurgy

Online:2012-03-27 Published:2012-03-30

摘要/Abstract

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。

关键词: 分子力学, Cu^2+, 闪锌矿, 活化机理

Abstract: 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.

Key words: Molecular Mechanics, Cu²⁺, Sphalerite, Activation mechanism

罗思岗. 应用分子力学法研究铜离子活化闪锌矿作用机理[J]. 现代矿业, 2012, 28(03): 7-9.

LUO Si-Gang. Activation Mechanism of Sphalerite Flotation in the Presence of Cu²⁺ by Molecular Mechanics[J]. Modern Mining, 2012, 28(03): 7-9.