The beneficiation of clay using a superconducting magnetic separator

Abstract

This paper describes the reduction of the concentration of iron and potassium from a slurry of English Clay using a high intensity superconducting magnetic separator. It was found that for magnetic fields greater than about 2T, the performance of the filter depended on H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">o</inf> V <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">o</inf> where H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">o</inf> is the applied field and V <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">o</inf> is the entrance velocity to the filter in agreement with theory. For fields less than 2T there is a slightly enhanced performance which is again in agreement with theory. Although in this region the theory may not be valid because particle size and shape effects become important.