METHOD OF VANADIUM-BEARING RAW MATERIAL PROCESSING Russian patent published in 2009 - IPC C22B34/22 C22B60/02 C22B3/08 C22B3/24 

FIELD: metallurgy.

SUBSTANCE: invention relates to technology of rare metals, particularly to method of processing of vanadium-bearing raw material: vanadium ores, vanadium-bearing slag of metallurgical manufacturing, treated vanadium catalysts and, particularly to complex treatment of Karatau quartzites by hydrometallurgy method. Method of processing of vanadium-bearing raw material includes acid leaching, sorption by resin of vanadium, uranium and phosphorus from solutions of leaching up to saturation of resin by vanadium, desorption of vanadium from resin and receiving of vanadium oxide. Additionally it is implemented double-circuit saturation of resin by vanadium: originally up to 200-250 g/kg by means of sorption from leaching solutions. Then it is complete saturate up to 450-650 g/kg by treatment b solutions of vanadic acid containing not less than 15 g/l of vanadium oxide, with simultaneous extraction of uranium and phosphorus into mother solution. Desorption of vanadium from resin saturated by vanadium up to 450-650 g/kg is implemented by method of solid-phase or liquid-phase desorption. In the capacity of vanadic acid there are used strippings of liquid-phase desorption or solutions prepared from vanadate of ammonium.

EFFECT: upgraded division grade of vanadium from uranium and phosphorus and upgraded efficiency of process.

2 cl, 2 ex