Patent classifications
B03D1/0046
Processes for the separation of ores
Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry.
VANADIUM RECOVERY
A method for the recovery of vanadium, the method including the steps of: (i) subjecting a vanadium-containing ore to a beneficiation step incorporating a sequence of medium-intensity magnetic separation, high-intensity magnetic separation and reverse silica flotation processes to form a vanadium-containing concentrate; (ii) roasting the vanadium-containing concentrate; (iii) leaching a product of the roasting step (ii) to extract vanadium into a pregnant leach liquor; (iv) passing the pregnant leach liquor of leaching step (iii) to a precipitation step; and (v) Treating a precipitate from step (iv) to obtain a vanadium product,
wherein an iron-titanium product from step (iii) is recovered.