Magnetocentrifugal separation of particulates: Theory and principles of operation

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Abstract
The theory and principles of operation of the new magnetocentrifugal separation are formulated. Magnetic and centrifugal g numbers for monodisperse and polydisperse particulates are defined. It is shown that the magnitude of electromagnetic and centrifugal forces can be matched in the full scale of centrifugal fields available to date. Magnetocentrifugal separation can be applied to separation of particulates down to colloidal and molecular sizes, and using a stationary fluid, it is independent of particle size, being controlled by density and magnetization of particles and fluid. Magnetic field configurations, different cases related to magnetization and density distributions of particulates, and specific modes of operations are discussed. Finally, diffusion controlled systems and potential applications of the new technology are considered.