Basf Se Corporation

Tamara Kuelzer

Martin Ernst

Alexander Panchenko

Alexej Michailovski

Adrian Mauricio Villanueva Berindoague

Hannes Ferdinand Zipfel

Sylvia Von Krog

Nedko Stefanov Drebov

Gabriela Budemberg

Stefanov Nedko Drebov

Long Phan

The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by reverse flotation, which method comprises the step of (c) adding a compound of formula I wherein Ris C-Calkyl or alkenyl, which is linear or branched, Ris H, C-Calkyl, which is linear or branched, Ris —X—NH, H or C-Calkyl, which is linear or branched, and X is C-Calkylene, which is linear or branched, or a salt of a protonated compound of formula I and an anion, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a method for manufacturing a specific group of compounds of formula I, i.e. compounds of formula 1-X wherein Ris C-Calkyl, which is linear or branched, Ris H, Ris —X—NHand X is C-Calkylene, which is linear or branched, is disclosed.

Method for flotation of a silicate-containing iron ore with a cationic collector

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Ludwigshafen, Germany

Tamara Kuelzer