Magnetic separation techniques and HTS magnets

Abstract

Magnetic separation techniques have been widely used, and the separation efficiency is related to the strength of the magnetic field applied and the field gradient to trap the magnetic particles. Conventional low- superconducting wire has been used to increase the field and to reduce normal electromagnetic winding resistive loss, and now the Bi-2223/Ag HTS wire provides a new opportunity for higher magnetic field and efficiency for use in a high-gradient magnetic separator as the magnetic field winding. Magnetic separation techniques are reviewed with regard to their magnetic fields, and the magnetic field winding required for this application is analysed with the consideration of using the HTS wire.