METHOD OF FINE CLAY MATERIAL PRODUCING Russian patent published in 2017 - IPC B03B5/00 C04B33/04 

FIELD: technological processes.

SUBSTANCE: invention relates to minerals processing and can be used to produce highly pure and/or modified clays, drilling muds preparation. Method of fine clay material producing involves breaking of initial clayey or clay-containing material in fluid until obtaining suspension, followed by extraction and removal of sediment from suspension, including fragmental product, and obtaining suspension containing fine fraction of clayey material, concentration of obtained suspension, wherein, during breaking mixture of liquid and initial material repeatedly passed through ejector providing supersonic flow and braking of suspension with formation of shock waves in ejector and three-phase mixture at ejector outlet, containing liquid, initial material and gas, wherein ejector is used with flow section, which minimum size is not less than for 3 times exceeds introduced clayey or clay-containing material particles size, and which amount in suspension is 2–15 wt%.

EFFECT: technical result consists in maximum removal of fragmental product from clayey minerals.

9 cl, 6 dwg, 1 tbl