Benner, Blair R2017-06-012017-06-012005-03https://hdl.handle.net/11299/188311The purpose of this test program was to run semi-continuous tests in the plant to confirm the previous results and to determine if the buildup of magnetite on the magnet grid reached equilibrium. The tests showed that the magnetite build-up did reach equilibrium and, although the field strength did decrease with the magnetite build-up, there was no indication of diminished performance.enHydroseparatorMagnetiteMinntacConcentratorsTaconite plantsNatural Resources Research InstituteUniversity of Minnesota DuluthTechnical Report