双硫氮的捕收性能及作用机理研究  

Study on the Collecting Performance and Mechanism of Dimer Diethyldithiocarbamate

作　　者：罗思岗[1] 

机构地区：[1]北京矿冶研究总院矿物加工科学与技术国家重点实验室,北京100160

出　　处：《有色金属（选矿部分）》2015年第4期88-92,共5页Nonferrous Metals（Mineral Processing Section）

基　　金：国际科技合作与交流专项项目(2012DFG71060)

摘　　要：对双硫氮与三种矿物（黄铜矿、方铅矿和黄铁矿）的作用体系分别进行了浮选试验、分子力学模拟计算和红外光谱分析研究,纯矿物浮选试验表明,双硫氮对黄铜矿和方铅矿有较好的浮选效果,双硫氮与黄铁矿的相互作用受OH-影响较大,只有在酸性条件下才能浮选黄铁矿;人工混合矿试验验证了单矿物试验的结论,在pH 6～10、用双硫氮作捕收剂的条件下,黄铜矿和黄铁矿的浮选分离达到了很好的效果。分子力学模拟计算结果和红外光谱分析较好地解释了浮选试验的结果。Interaction system of three kinds of minerals（ chalcopyrite,galena and pyrite） with the dimer diethyldithiocarbamate（ D2 for short） is studied by flotation tests,molecular mechanics simulation and FTIR in this paper. The results of flotation test with pure minerals show that the flotation behavior of chalcopyrite and galena is better by D2,pH is a very important factor in flotation of pyrite,and pyrite can be floated only under acidic pH condition. The conclusion of single mineral tests is verified by mixed mineral test,under the pH 6 ～ 10,with D2 as collector,the flotation separation of chalcopyrite and pyrite achieved good result. Molecular mechanics simulation results and infrared spectral analysis better interpret the results of the flotation tests.

关 键 词：双硫氮 黄铜矿 方铅矿 黄铁矿 浮选 分子力学 

分 类 号：TD923.13[矿业工程—选矿]