Process Mineralogy and Its Application to PGM Recovery from Low-grade Cu-Ni Sulfide Ore
Deposit of Jinbaoshan platinum group metals (PGMs) ore ranks the second in Yunnan province,China. Study on process mineralogy shows that the grade of copper and nickel in the ore is just 0.16% and 0.20% respectively. Moreover, the impurities magnesium and iron and silicon are rich in the ore. The copper and nickel sulfides in the ore, especially the minerals of PGMs, are finely disseminated with the gangues like serpentine. Fine grinding is necessary, and high content of MgO in the concentrate is inevitable through traditional flotation technology on the basis of process mineralogy studies.Achievements on process mineralogy studies are applied to guide the flotation tests successfully.Progress on flotation has been made through comprehensive studies. Suitable grinding by two stages is required for the finely disseminated PGM sulphide ore to achieve the liberation of valuable minerals. Stage grinding and stage separation shall be conducted for a better recovery of valuable minerals. The oxidation state of mineral surface of sulphides has a profound effect on flotation of the ultra-fine sulphides, especially the pentlandite. The combined use of collectors enhances the selective collecting on the ultra-fine and low-grade valuable minerals, is of critical importance.
Finely-Disseminated Copper and Nickel Sulfide Ore Process Mineralogy Fine Grinding Flotation
S. Q. Liu S. M. Wen X. Tong W. B. Zhang
Department of Mineral Processing, Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming, 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
2931-2935
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）