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:
Jan. 27, 2015
Filed:
Jan. 04, 2011
Klaus-ulrich Pedain, Dietzenbach-Steinberg, DE;
Uwe Dahlmann, Mainz, DE;
Klaus-Ulrich Pedain, Dietzenbach-Steinberg, DE;
Uwe Dahlmann, Mainz, DE;
Clariant Finance (BVI) Limited, Tortola, VG;
Abstract
The present invention relates to a flotation reagent for iron ores containing magnetite and/or haematite and to the use of a composition containing A) at least one amine alkoxylate ester of formula (I) or a salt thereof, wherein A and B, independently of one another, represent a C-Calkylene radical, Ris a Cto Calkyl or alkenyl radical, R, Rand R, independently of one another, are H or a Cto Cacyl radical, with the proviso that at least one of the radicals R, Ror Rstands for a Cto Cacyl radical, x, y and z, independently of one other, are an integer of from 0 to 50, with the proviso that x+y+z is an integer of from 1 to 100, and B) a compound of formula D-NH, in which D stands for a hydrocarbon radical having from 1 to 50 carbon atoms, which can contain either an oxygen atom or an oxygen atom and a nitrogen atom, in amounts of 10 to 5.000 g/tonne as a collector in the reverse flotation of iron ore containing magnetite, haematite or both.