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J. Cent. South Univ. (2016) 23: 3284-3292 DOI: 10.1007/s11771-016-3394-4 Nonlinear characteristics of induced spontaneous combustion process of sulfide ores PAN Wei(潘伟)1, WU Chao(吴超)1, LI Zi-jun(李孜军... combustion tendency of sulfide ores, nine different sulfide ore samples were taken from a pyrite mine in China, and induced spontaneous combustion experiment was carried out in the laboratory. Different stages......
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Bioleaching of low-grade copper sulfide ores by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidansWANG Jun(王军)1, 2, ZHU Shan(朱珊)1, 2, ZHANG Yan-sheng(张雁生)1, 2, ZHAO Hong-bo(赵红波)1, 2... thiooxidans were investigated, and then experiments were conducted to research the bioleaching behaviors of crude ore of copper sulfide and hand-picked concentrates of chalcopyrite by Acidithiobacillus......
,在一定反应条件下,选择合适的反应时间,实质上就是选择合适的终点过饱和度.在反应温度为95 ℃,溶液钌质量浓度为10 g/L,尿素与钌物质的量比为6:1的条件下,研究反应时间对前驱体颗粒形貌,粒度及产率的影响,结果见图2. 图2 不同反应时间下获得的钌粉前驱体的SEM图 Fig. 2 SEM of ruthenium powder precursors under different... of ruthenium powder 10-6 表4 高纯钌粉GDMS分析结果(质量分数) Table 4 GDMS analysis of high purity ruthenium powder 10-6 图3及图4所示分别为前驱体煅烧氢还原后获得的钌粉的SEM像及粒度分布. 图3 煅烧-氢还原后得到的钌粉的SEM图 Fig. 3 SEM of ruthenium powder after......
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Pressure leaching of bismuth sulfide concentrate containing molybdenum and tungsten in alkaline solutionZHANG Du-chao(张杜超), YANG Tian-zu(杨天足), LIU Wei-feng(刘伟锋), WU Jiang-hua(吴江华)(School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China)Abstract:The leaching results of bismuth sulfide concentrate containing molybdenum and tungsten in air-H2O2-NaOH system......
Catalytic effect of activated carbon on bioleaching of low-grade primary copper sulfide ores ZHANG Wei-min(张卫民)1, GU Shi-fei(谷士飞)2 1. School of Civil and Environmental Engineering, East China... June 2007 ______________________________________________________________ Abstract: The catalytic effect of activated carbon on the bioleaching of low-grade primary copper sulfide ores using mixture......
Pseudo-capacitance of ruthenium oxide/carbon black composites for electrochemical capacitorsXiaofeng Wang1), Dianbo Ruan1), Peng Wang2), and Yiqiang Lu2) 1) Department of Precision Instruments...">Hydrous ruthenium oxide was formed by a new process. The precursor was obtained by mixing the aqueous solutions of RuCl3·xH2O and NaHCO3. The addition of NaHCO3 led to the formation of an oxide......
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