Journal article
The influence of the density of a gas-solid fluidized bed on the dry dense medium separation of lump iron ore
J Oshitani, T Kawahito, M Yoshida, K Gotoh, GV Franks
Minerals Engineering | Published : 2011
Abstract
A gas-solid fluidized bed was used for dry dense medium separation of lump iron ore particles based on their floating and sinking in the fluidized bed. The density of the bed was adjusted to different values using mixtures of zircon sand and iron powder as the fluidized media. Float-sink experiments using 30 mm diameter density adjusted spheres in the range of 2100-4500 kg/m3 in density increments of 100 kg/m3 were carried out to determine the partition curves, the density of the bed and the probable error (Ep). It was found that the density could be adjusted in the range of 2500-4200 kg/m 3, when the bulk volume fraction of iron powder and the fluidizing air velocity were varied. The Ep val..
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Awarded by Australian Research Council
Funding Acknowledgements
This study was supported by Industrial Technology Research Grant Program in 2008 from the New Energy and Industrial Technology Development Organization (NEDO) of Japan, the Core-to-Core Program promoted by Japan Society for the Promotion of Science (Project No. 18004) and the Australian Research Council, AMIRA International, BHP Billiton, Rio Tinto, Orica, Anglo Platinum, Xstrata, Freeport McMoran and AREVA NC through the Australian Minerals Science Research Institute (AMSRI) (LP0667828). Thanks to BHP Billiton for supplying the iron ore. Thanks to Muhamad Firdaus for help with finding some literature and background information.