FLOTATION REAGENT FOR SILICATES Russian patent published in 2011 - IPC B03D1/01 

FIELD: process engineering.

SUBSTANCE: invention relates to using collectors in flotation processing of silicate-containing mineral resources and ores, namely, iron ore. Composition of formula I, R¹-O-R²-NH_(2-m)-[{R³)_n-H]_m (I) where R¹ represents hydrocarbon group containing 1-40 carbon atom, R² represents aliphatic hydrocarbon group containing 2-4 carbon atoms, R³ is alkoxy group, n equals 1-50, and m equals 1 or 2, is used as flotation reagent in silicate flotation. Said reagent is used also in composition containing 1-99 wt% of collectors for silicate flotation representing alkyl amino ether, alkyl diamine ether, alkyl amine or quaternary ammonium salt, as well as 1-99 wt% of compounds included in formula I.

EFFECT: higher efficiency of flotation.

12 cl, 1 tbl, 1 ex