METHOD OF EXTRACTION OF THE USEFUL INGREDIENTS FROM THE NATURALLY CLAY BONDED SANDS Russian patent published in 2007 - IPC B03B7/00 

FIELD: mining; methods of extraction of the useful ingredients from the naturally clay bonded sands.

SUBSTANCE: the invention is pertaining to the field of dressing of the natural resources, in particular, to the preparatory processes of the gravity concentration of the gold-bearing sands, desintegration and extraction of the useful ingredients from naturally clay bonded sands. The method of extraction of the useful ingredients from naturally clay bonded sands provides for pressing in the block of the naturally clay bonded sands of the mechanical impurities, their feeding in the scrubber, desintegration, gravity concentration, separation of the mechanical impurities in the pure state and with the nondesintegrated argillous pellets. The further routing of the mechanical impurities to pressing in the block of the naturally clay bonded sands, and the nondesintegrated argillous pellets - repeatedly - to the flushing. Before each cycle of feeding in the process of pressing in of the mechanical impurities they are treated with the surface active substances in the amount of 0.05-0.4 m³ per 1 m³ of the particles. The technical result of the invention is the increased efficiency of the desintegration and the decreased losses of the useful ingredient with the nondesintegrated argillous pellets.

EFFECT: the invention ensures the increased efficiency of the desintegration and the decreased losses of the useful ingredient with the nondesintegrated argillous pellets.

2 cl, 1 tbl, 2 ex