COMPOSITION OF ESTER OF AMINO ALKOXYLATE AND QUATERNARY AMMONIUM COMPOUND AS COLLECTOR FOR SILICATE-CONTAINING MINERALS Russian patent published in 2014 - IPC B03D1/01 

FIELD: chemistry.

SUBSTANCE: invention relates to use of compositions of alkylammonium salts and amino alkoxylate esters when purifying silicate-containing minerals and ore by floatation. The composition consists of at least one quaternary ammonium compound which contains at least one organic radical with 1-36 carbon atoms, which is bound to the ammonium nitrogen atom and optionally contains heteroatoms, and at least one amino alkoxylate ester of formula (1) or salt thereof, where A, B independently denote C₂-C₅ alkylene, R¹ is C₈-C₂₄ alkyl or alkenyl, R², R³, R⁴ independently denote H or C₈-C₂₄ acyl, under the condition that at least one of the radicals R², R³ or R⁴ is C₈-C₂₄ acyl, and x, y, z independently denote integers from 0 to 50, under the condition that the sum x+y+z is equal to an integer from 1 to 100, in amounts of 10 to 5000 g per ton of ore as a collector during floatation of silicates.

EFFECT: high efficiency of floatation of silicates.

15 cl, 3 tbl, 1 ex