The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2025
Filed:
Apr. 26, 2020
Basf SE, Ludwigshafen am Rein, DE;
Alexej Michailovski, Ludwigshafen, DE;
Alexander Panchenko, Ludwigshafen, DE;
Hannes Ferdinand Zipfel, Ludwigshafen, DE;
Martin Ernst, Ludwigshafen, DE;
Gabriela Budemberg, Ludwigshafen, DE;
Stefanov Nedko Drebov, Ludwigshafen, DE;
Sylvia von Krog, Ludwigshafen, DE;
Tamara Kuelzer, Ludwigshafen, DE;
Long Phan, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
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.