Physicochemical Properties and Process Mineralogy of Complex Tin, Zinc-bearing Iron Concentrates
China is rich in iron ore resources, but most of these ores are low-grade, polymetallic and refractory ones. Furthermore, with the rapid development of chinese iron & steel industry, the comprehensive recovery of these ores is becoming more and more important. The tin, zinc-containing complex iron ores are typical polymetallic and intractable ones, and great reserves of them are found in China.At present, they have not been efficiently utilized.In this paper, based on the investigation of basic physicochemical properties of the tin,zinc-bearing iron concentrates, taken from a mineral processing plant, the mineralogy reason that these concentrates are so intractable and refractory is found out, using advanced microscopic testing methods, such as optical microscope (OM), Scanning Electronic Microscope (SEM), X-ray diffraction (XRD), etc. It is found that the symbiotic relationship of iron, tin and zinc metallic minerals are very complicated, and magnetite in the concentrate is closely symbiotic or enwrapped by fine cassiterite and sphalerite. So it is difficult to separate tin and zinc completely from the iron concentrates by simple regrinding and physical separation method. This investigation provides theoretical guidance for developing new approaches for utilizing these concentrates.
Process mineralogy Complex iron ore Tin Zinc
Y. B. Zhang X.F. Yang T. Jiang G. H. Li G. H. Han Z. C. Huang G. Z. Qiu
School of Minerals Processing & Bioengineering, Central South University, Changsha, Hunan, China
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
197-203
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）