Mineral Processing of Cobalt-rich Ferromanganese Crust and Nodules
Cobalt-rich ferromanganese crust and nodule ores from seamount areas contain volcanic and sedimentary rocks as substrate or nuclei. These ores require mineral processing to remove the substrate/nuclei rock before smelting. This paper reviews experimental results of previous investigations. Observations and analysis of 10 samples from different localities were carried out and it was found that the liberation ratio of crushed product was high even at coarse size fraction, 0.5mm to 4mm. Experimental and calculated results in the smelting stage confwrned that the separation product satisfies the standards of the subsequent smelting process if the substrate/nuclei rock is removed from the 0.5mm to 4mm fraction with high separation efficiency. There was a density difference between the substrate/nuclei rock and the ferromanganese component. Thus the coarse sized sample was treated with gravity separation; air table separation was used as a dry method and jig separation as a wet method and high grade values with high recoveries were obtained by both kinds of gravity separation.
Cobalt-rich ferromanganese crust Manganese crust Mineral processing Gravity separation Jig Air table Rare earth elements
M. Ito M. Tsunekawa K. Sekimura E. Yamaguchi K. Kashiwaya K. Hori N. Hiroyoshi
Laboratory of Mineral Processing and Resources Recycling, Division of Solid Waste, Resources and Geo Laboratory of Mineral Processing and Resources Recycling, Division of Solid Waste,Resources and Geoe
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
806-812
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）