Patent ID: 6953120
Filing Date: 2005-10-11
Classification: B03C,C22B,Y02P

Abstract:
1. A method of recovering metal and/or oxide thereof present in a slurry comprising steps (a)-(d): (a) magnetically separating at least a portion of magnetic impurities present in said slurry from said slurry wherein said magnetically separating comprises applying a magnetic force of 2000 gauss or lower to said slurry in order to attract at least a portion of said magnetic impurities; (b) leaching or dissolving at least a portion of the remaining magnetic impurities in said slurry after step (a); (c) adding at least one chelating agent to said slurry at about the same time as step (b) or after step (b); and (d) recovering solids comprising said metal and/or oxide thereof present in said slurry after step (c).