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:A Adsorption of O2 on pyrite and galena surfaces LI Yu-qiong1, CHEN Jian-hua2, LAN Li-hong1, 3, GUO Jin4 (1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; 2... of Physics Science and Engineering, Guangxi University, Nanning 530004, China) Abstract: The adsorption of oxygen molecule (O2) on the pyrite and galena surfaces was studied using density functional......
物质;在石灰体系中,同时存在钙膜的影响,使得Rs增加的幅度比在氢氧化钠体系中的大,该结果与浮选试验结果一致. 关键词:黄铁矿;石灰;氢氧化钠;浮选;交流阻抗;循环伏安 中图分类号:TD913 文献标志码:A Electrochemical behaviors of pyrite flotation using lime and sodium... hydroxide on the pyrite. Single mineral flotation test results show that lime depresses pyrite more strongly than sodium hydroxide when pH is in the range of 7.0-11.5; at pH> 11.5, lime and sodium......
; 文献标志码:A 文章编号:1672-7207(2017)08-1965-07 Floatability of pyrite and galena...: The floatability and adsorption mechanism of sodium oleate on galena and pyrite were studied by flotation solution chemistry calculation, potentiostatic test and infrared spectroscopic analysis. The results......
献标识码:A Influence of liquid medium on ultrafine grinding of pyrite LIU Wen-ping1, 2, YIN Zhou-lan1, DING Zhi-ying1, CHEN Qi-yuan1 (1. School of Chemistry and Chemical Engineering, Central South... size and slurry viscosity of pyrite powder with the grinding time on the same grinding condition were studied. The possible reasons were analyzed by the measurements of wettability, zeta potential......
Trans. Nonferrous Met. Soc. China 28(2018) 1241-1247 Flotation and electrochemical behaviors of chalcopyrite and pyrite in the presence of N-propyl-N′-ethoxycarbonyl thiourea Shuang-ke LI, Guo-hua GU...: The characteristics of N-propyl-N′-ethoxycarbonyl thiourea (PECTU) were studied in the flotation experiments of chalcopyrite and pyrite compared with butyl xanthate (BX). The interaction mechanism between mineral......
of pyrite in high-sulfur bauxite with microwave roasting process JIN Huixin1, 2, WU Fuzhong1, 2, LI Junqi1, CHEN Chaoyi1, LIU Hongling1, YANG Qian1 (1. College of Materials and Metallurgy, Guizhou... of pyrite from high-sulfur bauxite. The results show that desulfurization by microwave roasting has the characteristics of low temperature, short time and high efficiency. Under the condition......
; 文献标志码:A Characteristic of thermal decomposition kinetics of main gold-bearing sulfides pyrite ZHAO Liu-cheng1, SUN Chun-bao1... decomposition kinetics of main gold-bearing sulfides pyrite was investigated by TG-DSC thermal analysis at different heating rates. The microstructures of pyrite before and after decomposition were analyzed......
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12天时,浸出率为11.45%.随着配入黄铁矿比例的升高,硫砷铜矿的浸出率逐渐提高,当黄铁矿加入量为硫砷铜矿的6倍(质量比)时,硫砷铜矿浸出率快速升高,浸出12天时浸出率可达23.6%. 图4 不同黄铁矿配比对硫砷铜矿浸出率的影响 Fig. 4 Effect of different pyrite proportion on enargite dissolution 对硫砷...糊电极循环伏安曲线如图6所示. 表3 静止电位测定表 Table 3 Rest potential of enargite and pyrite 图6 循环安扫描曲线 Fig. 6 Circle voltammetry curves: 1-Enargite; 2-Enargite+ pyrite 图6结果可知,在硫砷铜矿中加入黄铁矿,循环福安曲线......