Collectorless flotation of marmatite with pine oil  

作　　者：Zheng-Bin Deng Xiong Tong Alejandro López Valdivieso Xiao Wang Xian Xie 

机构地区：[1]Faculty of Land and Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China [2]State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming 650093,China [3]Yunnan Province Engineering Research Center for Reutilization of Metal Tailings Resources,Kunming 650093,China [4]Laboratory of Surface Chemistry Institute of Metallurgy,Universidad Autonoma de San Luis Potosi,C.P.78210 San Luis Potosi,Mexico

出　　处：《Rare Metals》2017年第2期147-154,共8页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51174103)

摘　　要：The interaction between pine oil and marmatite without collectors and activators was investigated by flotation,scanning electron microscope and energy-dispersive spectrometer（SEM-EDS）,infrared（IR） spectroscopy,Zeta potential,and first-principle theory calculations.The flotation results show that marmatite exhibits considerable floatability with the addition of pine oil.SEM-EDS results show that carbon atomic ratios on the surface are significantly high,which suggests that the flotation of marmatite is caused by the adsorption of pine oil.Further evidence of the adsorption mechanism was given by IR,and Zeta potential examining pine oil depends on the physical adsorption on the surface independently.The first-principle theory calculations indicate that pine oil molecule adsorbs on Zn and Fe atom surfaces by ionic bond and covalent bond of adsorption energies of-1.23and-1.51 eV,respectively.P orbital of O atom,s orbital of Zn atom,and d orbital of Fe are the major participants.The interaction between pine oil and marmatite without collectors and activators was investigated by flotation,scanning electron microscope and energy-dispersive spectrometer（SEM-EDS）,infrared（IR） spectroscopy,Zeta potential,and first-principle theory calculations.The flotation results show that marmatite exhibits considerable floatability with the addition of pine oil.SEM-EDS results show that carbon atomic ratios on the surface are significantly high,which suggests that the flotation of marmatite is caused by the adsorption of pine oil.Further evidence of the adsorption mechanism was given by IR,and Zeta potential examining pine oil depends on the physical adsorption on the surface independently.The first-principle theory calculations indicate that pine oil molecule adsorbs on Zn and Fe atom surfaces by ionic bond and covalent bond of adsorption energies of-1.23and-1.51 eV,respectively.P orbital of O atom,s orbital of Zn atom,and d orbital of Fe are the major participants.

关 键 词：Pine oil MARMATITE Collectorless flotation 

分 类 号：TD923.1[矿业工程—选矿]