High Purity Magnesium Oxide (MgO) for Improved Performance in Cobalt, Nickel and Copper Mining (Hydrometallurgy)

High Purity Magnesium Oxide (MgO) for Improved Performance in Cobalt, Nickel and Copper Mining (Hydrometallurgy)

High purity, light burned MagChem^®40 magnesium oxide is moderately reactive and uniformly burned to provide a higher recovery of valuable metals such as cobalt, nickel and copper from acid leach solutions. MagChem^®40 can improve MgO utilization efficiency and increase the precipitate grade and yield of the metal such as cobalt giving MagChem^®40 superior performance in hydrometallurgy over naturally mined magnesia products (i.e. caustic calcined magnesia (CCM)) that have lower MgO purity and slower, non-uniform reactivity.

Unlike lime and caustic soda, MagChem^®40 magnesium oxide is a non-hazardous (by D.O.T. standards) and non-corrosive product that is safer to handle. MagChem^®40 is particularly advantageous over lime in that it does not cause scaling and produces a metal hydroxide cake free from insoluble sulfate salts such as gypsum. Due to the gradual neutralization rate of MagChem^®40, there is sufficient time for the metal hydroxide particles to grow resulting in larger floc particles that settle out faster. The metallic sludge generated by MagChem^®40 is more concentrated in solids and easier to dewater as compared to sludge produced by lime or caustic soda, which greatly improves the hydrometallurgy process.