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J. Cent. South Univ. Technol. (2009) 16: 0223-0229 DOI: 10.1007/s11771-009-0038-y Acidophilic bacterial community reflecting pollution level of sulphide mine impacted by acid mine drainage WAN... Dabaoshan Mine (24.5? N, 113.7? E) is located in the mountainous area of the northern part of Guangdong Province, China. It is a large, multimetallic mineral deposit: the top of the main ore body appears......
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Engineering, Northeastern University, Shenyang 110819, China Received 29 July 2013; accepted 30 September 2013 Abstract: A low-grade nickel laterite ore was reduced at different reduction temperatures... gradually assemble and grow into larger spherical particles with increasing temperature and prolonging time. After reduction, the nickel laterite ore obviously changes into two parts of Fe-Ni metallic......
in the future.Laterite ores especially the saprolitic laterite ore are one refractory nickel resource,the nickel and iron of which can be effectively recovered by direct reduction and magnetic... mud addition promoted the reduction of the saprolitic laterite ore and the iron ores in the red mud were co-reduced and recovered.By adding 35wt%red mud,the nickel grade and recovery were 4.90wt......
磨矿方法对某硫化矿浮选的影响 周高云1,魏以和2 (1.北京矿冶研究总院,北京,10044;2.武汉工程大学,环境与城市建设学院,武汉,430073) 摘要:为提高效果,用三种磨机(普通钢磨机,不锈钢磨机和瓷磨机)研究某铅锌矿小型试验的浮选行为.结果表明,瓷磨机(即非铁质磨机)的氧化性磨矿环境可提高铅回收率,但由于矿石氧化产生的铜离子对闪锌矿的活化而降低了浮选选择性.相反地,传统铁质磨机磨矿则导致铅收率下降,而选择性提高.铁质磨机磨矿时铅收率降低可能是由铁氧化产物在矿物表面覆盖而造成的.粗粒更易受这种抑制的影响. 关键词:选矿工程; 磨矿介质; 硫化矿; 浮选; mineral processing; complex sulphide ore; milling; flotation; [全文内容正在添加中] ......
J. Cent. South Univ. (2016) 23: 1584-1590 DOI: 10.1007/s11771-016-3212-z Acid leaching decarbonization and following pressure oxidation of carbonic refractory gold ore ZHANG Du-chao(张杜超)1, 2, XIAO... refractory gold ore and the following pressure oxidation were studied. In the carbonate decomposition procedure, the effects of liquid-to-solid ratio and reaction time on decomposition ratio......
；直接还原；相变 中图分类号:TD925；TF55 文献标志码:A Effect of high-temperature phase transition of serpentine mineral on direct reduction roasting of laterite nickel ore LIU Zhi-guo, SUN Ti... and recrystallization will happen in the roasting process of serpentine mineral in the laterite nickel ore. To study the effect of phase transition of serpentine on the direct reduction of laterite......
of sulphide ores[M]. Beijing: Metallurgical Industry Press, 1995: 74?78. [11] YANG F Q, WU C. Fire-extinguishing techniques research on spontaneous combustion of a sulfide iron ore dump in mining...为11.523 3 mm；由于自热层的升温幅度明显大于其他区域的,在采矿生产中应对该区域进行重点监控. 关键词:硫化矿石堆；自热实验；温度场；混沌相关性；二维插值；自热层；仿真 中图分类号:TD 75 文献标识码:A Self-heating test of sulfide ore heap and numerical simulation......
solution. Key words: low nickel matte; calcified roasting; CaO; ferrite; goethite process 1 Introduction Nickel (Ni) is naturally present as two principal ore types: approximately 60% in sulfides and 40... for the recovery of Ni and Mo from carbonaceous shale ore by researchers at Central South University, China [22,23]. In this study, our research focused on calcified roasting of low nickel matte in the presence......
