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:
Feb. 14, 2017
Filed:
Apr. 10, 2012
Christian Bittner, Bensheim, DE;
Joerg Nieberle, Wachenheim, DE;
Bernhard Ulrich Von Vacano, Mannheim, DE;
Alexsandro Berger, Rosenheim, DE;
Roland Boehn, Maxdorf, DE;
Guenter Oetter, Frankenthal, DE;
Christian Bittner, Bensheim, DE;
Joerg Nieberle, Wachenheim, DE;
Bernhard Ulrich Von Vacano, Mannheim, DE;
Alexsandro Berger, Rosenheim, DE;
Roland Boehn, Maxdorf, DE;
Guenter Oetter, Frankenthal, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RO—X—NH(Ia); RO—X—NHY(Ib); RO—X—NH—Z—NH(IIa); and RO—X—NH—Z—NHY(IIb), in which X is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Z is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Y− is an anion; and R is an aliphatic group of the formula (I) CHCH(CH)CH— (I) wherein the CHmoeity of the aliphatic group of the formula (I) comprises 70 to 99% by weight n-CH—, and 1 to 30% by weight CHCH(CH)CH— and/or CHCH(CH)CHCH—.RO—X—NH  (Ia)RO—X—NHY  (Ib)RO—X—NH—Z—NH  (IIa)RO—X—NH—Z—NHY  (IIb)CHCH(CH)CH—  (I)