Abstract
Separation of Silicastone and pyrophyllite due to density difference with a gas-solid fluidized bed is investigated. We employ mixtures of glass beads and steel shots with various mixing ratios as a fluidized medium to obtain fluidized beds of various bulk densities. Floating and sinking of the ores in the fluidized bed are examined by changing the bulk density and the superficial velocity. It is found that the separation of two ores with a slight density difference is possible at a high separation efficiency by careful adjustment of the mixing ratio. The separation efficiency depends on the superficial velocity because it alters the flow patterns of particles and bubbles in the fluidized bed, which affect the floating and sinking of the ores.
| Original language | English |
|---|---|
| Pages (from-to) | 247-258 |
| Number of pages | 12 |
| Journal | Advanced Powder Technology |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 |
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Keywords
- Fluidized bed
- Glass beads
- Pyrophyllite
- Separation
- Silicastone
- Steel shots
ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Separation of silicastone and pyrophyllite by a gas-solid fluidized bed utilizing slight difference of density. / Oshitani, Jun; Kondo, Matsujiro; Nishi, Hiroyuki; Tanaka, Zennosuke.
In: Advanced Powder Technology, Vol. 14, No. 2, 2003, p. 247-258.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Separation of silicastone and pyrophyllite by a gas-solid fluidized bed utilizing slight difference of density
AU - Oshitani, Jun
AU - Kondo, Matsujiro
AU - Nishi, Hiroyuki
AU - Tanaka, Zennosuke
PY - 2003
Y1 - 2003
N2 - Separation of Silicastone and pyrophyllite due to density difference with a gas-solid fluidized bed is investigated. We employ mixtures of glass beads and steel shots with various mixing ratios as a fluidized medium to obtain fluidized beds of various bulk densities. Floating and sinking of the ores in the fluidized bed are examined by changing the bulk density and the superficial velocity. It is found that the separation of two ores with a slight density difference is possible at a high separation efficiency by careful adjustment of the mixing ratio. The separation efficiency depends on the superficial velocity because it alters the flow patterns of particles and bubbles in the fluidized bed, which affect the floating and sinking of the ores.
AB - Separation of Silicastone and pyrophyllite due to density difference with a gas-solid fluidized bed is investigated. We employ mixtures of glass beads and steel shots with various mixing ratios as a fluidized medium to obtain fluidized beds of various bulk densities. Floating and sinking of the ores in the fluidized bed are examined by changing the bulk density and the superficial velocity. It is found that the separation of two ores with a slight density difference is possible at a high separation efficiency by careful adjustment of the mixing ratio. The separation efficiency depends on the superficial velocity because it alters the flow patterns of particles and bubbles in the fluidized bed, which affect the floating and sinking of the ores.
KW - Fluidized bed
KW - Glass beads
KW - Pyrophyllite
KW - Separation
KW - Silicastone
KW - Steel shots
UR - http://www.scopus.com/inward/record.url?scp=0037259977&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037259977&partnerID=8YFLogxK
U2 - 10.1163/156855203763594010
DO - 10.1163/156855203763594010
M3 - Article
AN - SCOPUS:0037259977
VL - 14
SP - 247
EP - 258
JO - Advanced Powder Technology
JF - Advanced Powder Technology
SN - 0921-8831
IS - 2
ER -