| 捕收剂DCZ-2在石英表面的吸附行为及作用机理 |
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| 引用本文： | 乘舟越洋,朱一民,骆斌斌,郭文达,韩跃新,李艳军. 捕收剂DCZ-2在石英表面的吸附行为及作用机理[J]. 金属矿山, 2016, 45(12): 113-117 |
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| 作者姓名： | 乘舟越洋 朱一民 骆斌斌 郭文达 韩跃新 李艳军 |
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| 作者单位： | 东北大学资源与土木工程学院，辽宁 沈阳 110819 |
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| 基金项目： | 国家自然科学基金项目(51274056;51474055)，“十二五”国家科技支撑计划项目(2015BAB15B02)，国土资源部基金项目(12120113086600) |
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| 摘 要： | 借助Material Studio 8.0分子模拟软件，采用COMPASS Ⅱ力场，并利用密度泛函理论对新型浮选捕收剂DCZ-2在石英表面的吸附过程进行模拟计算，考察DCZ-2分子与石英表面的作用形式。结果表明：①以DCZ-2为捕收剂，4
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| 关 键 词： | 醚胺型捕收剂 氢键 吸附机理 |
Adsorption Behavior and Mechanism of Quartz with Collector DCZ-2 |
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| Cheng Zhouyueyang,Zhu Yimin,Luo Binbin,Guo Wenda,Han Yuexin,Li Yanjun. Adsorption Behavior and Mechanism of Quartz with Collector DCZ-2[J]. Metal Mine, 2016, 45(12): 113-117 |
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| Authors: | Cheng Zhouyueyang Zhu Yimin Luo Binbin Guo Wenda Han Yuexin Li Yanjun |
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| Affiliation: | College of Resource and Civil Engineering，Northeastern University,Shenyang 110819，China |
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| Abstract: | In order to calculate the hydrogen bonds between a new-type collector and α-quartz,,a molecular simulation software Materials Studio 8.0 with its forcefield COMPASS Ⅱ were used in this experiment.The results illustrates that:①Use DCZ-2 as a collector,as 4＜pH＜10,the recovery of quartz for single mineral is over 96％,when pH increased,the recovery of quartz decrease;②The adsorption energy of collector DCZ-2 on the surface of quartz is-505.75 kJ/mol.The average length of hydrogen bonds occurred between DCZ-2 and quartz is 0.177 389 nm according to the simulation,illustrates the collection of DCZ-2 to quartz is strong;③Hydrogen adsorption and electrostatic adsorption both occurred between DCZ-2 and quartz on 4＜pH＜7.5,and hydrogen adsorption occurred between DCZ-2 and quartz when the pH is increase. |
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| Keywords: | Ether-amine collector Hydrogen bond Adsorption mechanism |
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