Novel Cationic Collectors for Improving a Process for Froth Flotation of Silicates
AssigneeClariant International Ltd.
InventorsAdriana Grossmann, Tobias PLATEN, Klaus RAAB, Claudio Wagner DA SILVA, Leandro Seixas BICALHO, Pedro Martins de Almeida ROLLO
Life of this patent
Estimating the term…
Abstract
A process or use of at least one hydroxyl ether diamine for improving a process for froth flotation of silicates. Compared to the benchmark ether monoamines, ether diamines or mixtures thereof, the selectivity performance of the hydroxyl ether diamines is significantly better, delivering higher recoveries for the mineral of interest.
Claims8
-7. (canceled)
A process for improving collector performance of a collector composition for froth flotation of silicates, comprising the step of adding at least one hydroxyl ether diamine to a froth pulp of a mineral ore, wherein the at least one hydroxyl ether diamine is according to Formula (1)
- wherein
- R1 is a linear or branched alkyl or alkenyl group having C6-C24 carbon atoms and
- R2, R3, R4 can be different or the same independently from each other, are H or a linear or branched alkyl or alkenyl group having C1-C5 carbon atoms and
- n is an integer 2-5
- or is a salt of the at least one compound of Formula (1) formed by neutralization with formic, acetic, propionic or hydrochloric acid
- wherein the pH is greater than about 8.0, preferably the pH is greater than about 10.0.
Dependencies are inferred from the claim text.