USE OF COMPOSITIONS CONTAINING GLYCEROL AS AGENT PROMOTING DRY GRINDING OF MINERAL SUBSTANCES Russian patent published in 2016 - IPC C09C3/04 C09C3/08 C09C3/10 B02C23/06 

FIELD: chemistry; disintegrators and devices for crushing.

SUBSTANCE: method includes, in ball mill, crushing mineral substance in presence of a composition containing glycerine in an aqueous or pure form; or glycerine with one or more agents: ethylene glycol, monopropylene glycol, triethylene glycol, phosphoric acid, formic acid, citric acid, organic polyacid or salts thereof, alkanolamine, polyethylene imine, polyalkylene glycol polymer with molecular weight from 200 to 20,000 g/mol, carbohydrate, one or more polyglycerines; or one or more polyglycerines in aqueous or pure form. Mineral substance used is dolomite, talc, titanium dioxide, alumina, kaolin, calcium carbonate.

EFFECT: invention increases grinding capacity and reduces specific energy of crushing.

25 cl, 3 tbl, 1 ex