TY - JOUR
T1 - Solid-liquid magnetic separation using bulk superconducting magnets
AU - Yokoyama, K.
AU - Oka, T.
AU - Okada, H.
AU - Fujine, Y.
AU - Chiba, A.
AU - Noto, K.
PY - 2003/6/1
Y1 - 2003/6/1
N2 - Our research is to magnetize the high-Tc bulk superconductors and to supply magnetic field environment realized by superconducting bulk magnets to various applications. In this paper, we aim to apply the superconducting bulk magnets to the high gradient magnetic separation (HGMS). Using a face-to-face type superconducting bulk magnet system in which a pair of bulk superconductors are oppositely arranged, Y123 bulk superconductors are magnetized by the "IMRA" method (pulsed field magnetization), and consequently, a magnetic field of 1.6 T is achieved between the magnetic poles. Next, HGMS using superconducting bulk magnets is demonstrated. A separation pipe into which filter matrices composed by ferromagnetic wires are stuffed is set between the magnetic poles and the slurry mixed with fine powder of α-hematite (Fe2O3) particles is flown. As the results of HGMS, over 90% of the Fe2O3 was separated. Moreover, separation filters have to be washed so that they are not clogged with captured particles. We confirmed that the filter was briefly washed by flowing water after moving the separation pipe from magnetic poles.
AB - Our research is to magnetize the high-Tc bulk superconductors and to supply magnetic field environment realized by superconducting bulk magnets to various applications. In this paper, we aim to apply the superconducting bulk magnets to the high gradient magnetic separation (HGMS). Using a face-to-face type superconducting bulk magnet system in which a pair of bulk superconductors are oppositely arranged, Y123 bulk superconductors are magnetized by the "IMRA" method (pulsed field magnetization), and consequently, a magnetic field of 1.6 T is achieved between the magnetic poles. Next, HGMS using superconducting bulk magnets is demonstrated. A separation pipe into which filter matrices composed by ferromagnetic wires are stuffed is set between the magnetic poles and the slurry mixed with fine powder of α-hematite (Fe2O3) particles is flown. As the results of HGMS, over 90% of the Fe2O3 was separated. Moreover, separation filters have to be washed so that they are not clogged with captured particles. We confirmed that the filter was briefly washed by flowing water after moving the separation pipe from magnetic poles.
KW - High-gradient magnetic field
KW - Magnetic separation
KW - Magnetization
KW - Superconducting bulk magnet
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U2 - 10.1109/TASC.2003.812799
DO - 10.1109/TASC.2003.812799
M3 - Conference article
AN - SCOPUS:0042975221
VL - 13
SP - 1592
EP - 1595
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 II
T2 - 2002 Applied Superconductivity Conference
Y2 - 4 August 2002 through 9 August 2002
ER -