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Mechanisms of magnetic separation of fine YBaCuO powders in a fluidized bed

✍ Scribed by S. Labroo; J.Y. Park; R.J. Kearney; W.-J. Yeh

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
322 KB
Volume
33
Category
Article
ISSN
0011-2275

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✦ Synopsis

High gradient magnetic separation of Y-Ba-Cu-O superconducting particles in a gas fluidized bed has been studied experimentally. The data indicate that best separation is achieved at three times the minimum fluidization gas velocity and that the superconducting concentration profile along the bed height reaches equilibrium in 30 min of exposure to the magnetic field gradient. To interpret these results a Boltzmann-type separation kinetics model is proposed in which the collective effect of Meissner and dispersive forces acting on these particles is described in terms of a separation parameter. Good agreement is found between theory and experiment.

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