Patent ID: 8741023
Filing Date: 2014-06-03
Classification: B03C,C22B

Abstract:
1. A method of processing an iron ore feedstock, comprising the steps of: a) sending pulsations through a slurry comprising iron ore feedstock particles comprising magnetic iron ore material, paramagnetic iron ore material, and gangue material comprising a clay; b) magnetically separating the pulsed slurry into a concentrated magnetic iron ore fraction and a diverted paramagnetic slurry fraction, wherein the concentrated magnetic fraction comprises concentrated magnetic iron ore material and wherein the paramagnetic slurry fraction comprises paramagnetic iron ore material and gangue material; c) after the paramagnetic slurry fraction is diverted, using a further magnetic separation to further concentrate the magnetic iron ore material of the magnetic fraction; d) sending pulsations through the diverted paramagnetic slurry fraction; and e) using a further magnetic separation to further concentrate the paramagnetic iron ore material of the diverted and pulsed paramagnetic slurry fraction.