捕收剂DXY-1在石英表面的捕收性能及机理研究  

Collecting Performance and Mechanism of Collector DXY-1 on Quartz Surface

作　　者：杨雪莹 朱一民[1,2,3,4] 李艳军[1,2,3,4] 谢瑞琦 乘舟越洋[1,2,3,4] Yang Xueying;Zhu Yimin;Li Yanjun;Xie Ruiqi;Cheng Zhouyueyang(School of Resource and Civil Engineering,Northeastern University,Shenyang 110819,China;2011 Iron and Steel Ge⁃neric Technology Innovation Center of Northeastern University,Shenyang 110819,China;Technical Engineering Laborato⁃ry of High Efficient Exploitation and Utilization of Refractory Iron Ore in Liaoning,Shenyang 110819,China;Genetic Mineral Processing Research Center,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819 [2]东北大学2011钢铁共性技术协同创新中心,辽宁沈阳110819 [3]难采选铁矿石高效开发利用技术工程实验室,辽宁沈阳110819 [4]东北大学基因矿物加工研究中心,辽宁沈阳110819

出　　处：《金属矿山》2020年第6期110-113,共4页Metal Mine

摘　　要：为研究醚胺类捕收剂DXY-1对石英的捕收性能和机理,首先进行了单矿物浮选试验,之后对药剂与矿物吸附前后的Zeta电位进行检测并用MS软件模拟计算。结果表明,捕收剂DXY-1在常温下对石英有良好的捕收能力,pH=10时浮选回收率最佳,可达98.0%。基于MS软件的CASTEP模块计算了捕收剂DXY-1与石英矿物表面的吸附作用能,其值为负值且低于OH-在石英表面的吸附能,说明DXY-1在石英表面可以发生吸附且与OH^-相比,捕收剂DXY-1对石英的吸附作用更强。结合药剂与矿物吸附前后的Zeta电位检测和MS模拟布居数的计算结果表明,捕收剂DXY-1与石英(101)表面的吸附方式为静电吸附和氢键吸附。In order to study the collection performance and mechanism of the etheramine collector DXY-1 on quartz,first a single mineral flotation test was carried out,and then the Zeta potential before and after the adsorption of the agent and mineral was detected and simulated by MS software.The test results show that the collector DXY-1 has a good collection capacity for quartz at room temperature,and the flotation recovery rate is best at pH=10,which can reach 98.0%.The CASTEP module based on MS software calculated the adsorption energy of collector DXY-1 on the surface of quartz miner⁃als,which is negative and lower than the adsorption energy of OH‒on the quartz surface,indicating that adsorption can oc⁃cur and compared with OH‒The collector DXY-1 has a stronger adsorption effect on quartz.Combined with the Zeta potential detection before and after the adsorption of reagents and minerals and the calculation results of MS simulated population num⁃bers,it is shown that the adsorption methods of collector DXY-1 and quartz(101)surface are electrostatic adsorption and hy⁃drogen bonding adsorption.

关 键 词：石英 捕收剂DXY-1 醚胺类捕收剂 MS 

分 类 号：TD923[矿业工程—选矿]