Patent ID: 8827079
Filing Date: 2014-09-09
Classification: B03C,H01F

Abstract:
1. A magnetic reagent for separating a value mineral from a non-value mineral, said reagent comprising: a plurality of magnetite microparticles having an average diameter of less than 50 microns; and a compound of formula (I),  wherein the compound of formula (I) has a molecular weight of about 2,000 or less; n is an integer from 1 to 3; each X is individually selected from the group consisting of H, M and NR′ R comprises from about 1 to about 50 carbons; and wherein the plurality of magnetite microparticles and the compound of formula (I) are present in a weight ratio of magnetite microparticles: compound of formula (I) from about 10:1 to about 1:10.