METHOD OF INTRADUMP CONCENTRATION OF RADIOACTIVE TAILS Russian patent published in 1995 - IPC

FIELD: chemical technology. SUBSTANCE: antifiltration and drainage and upper and bottom part-hollows were formed. Then leaching layer is formed made of uranium-containing tails is formed. In bottom hollow silicon oxide, concentrated layer on the basis of vanadium pentoxide hydrate and a layer made of uranyl vanadate tails were formed successively. Tails delivery is carried out by pulp line. Uranium and vanadium dissolving is carried out in the process of treatment of tails with leaching solutions. Uranyl vanadates were precipitated into concentrated layer at solution feeding, and metal residues were migrated in concentratable layer where vanadium pentoxide hydrates were precipitated. Uranium-containing solutions were penetrated into silicon oxide layer where uranium is sorbed. EFFECT: improved method of concentration. 1 dwg