USE OF A COLLECTOR FOR LESSONS OF THE SULFIDE TYPE AND PROCEDURE FOR PREPARATION.

摘要

Use of an agent for flotation of sulphide-type ores, which contains at least one compound of the formula (See formula) in which R1, R2 and R3, independently of each other, represent alkyl groups with 1 to 18 atoms carbon, alkenyl groups with 2 to 18 carbon atoms, aryl groups with 6 to 10 carbon atoms or alkyl-aryl groups with 7 to 7 to 10 carbon atoms, and R4 represents hydrogen or alkyl groups with 1 to 18 carbon atoms , alkenyl groups with 2 to 18 carbon atoms, aryl groups with 6 to 10 carbon atoms or alkyl-aryl groups with 7 to 7 to 10 carbon atoms.