MATERIAL PROCESSING METHOD Russian patent published in 1999 - IPC

FIELD: physicochemical concentration method, in particular, grinding of different materials including raw materials in mining industry. SUBSTANCE: method involves feeding material with water into annular grinding zone from the top; compressing material in grinding zone; providing rubbing of material particles one against the other and simultaneously providing pulsed action of high-temperature liquid flow, overheated steam or hot air flow upon particles during deformation or destruction of material. Feeding of material with water or surfactant solution into annular grinding zone and particle rubbing are conducted concurrently with introducing superfinely dispersed diamond powder into grinding zone. Pulsed action upon particles is conducted simultaneously with supplying of oily substances and surfactants. EFFECT: increased efficiency in extracting useful components. 2 cl, 3 dwg