C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 1/00 (2006.01) B03C 1/01 (2006.01) B03D 1/10 (2006.01) C22B 15/00 (2006.01)
Patent
CA 2693902
The present invention relates to a method for separating at least one hydrophobic agent from a mixture comprising said at least one hydrophobic agent and at least one hydrophilic agent, comprising the steps of: A) Producing a slurry or dispersion of the mixture to be treated in at least one suitable dispersion agent, B) bringing the slurry or dispersion of step (A) into contact with at least one solid, hydrophobic surface for attaching the at least one hydrophobic agent to be separated to the surface thereof, C) removing the at least one solid, hydrophobic surface, whereon the at least one hydrophobic agent from step (B) is bonded, from the slurry or dispersion, in which the at least one hydrophilic agent is present, and D) separating the at least one hydrophobic agent from the solid, hydrophobic surface. According to the invention, the method is used for separating (hydrophobic) sulfidic minerals, particularly copper sulfides, from mixtures having hydrophilic metal oxides (gang minerals). The solid surface can be, for example, a conveyor belt having a hydrophobic, structured surface.
La présente invention concerne un procédé pour séparer au moins une substance hydrophobe d'un mélange contenant au moins cette ou ces substances hydrophobes et au moins une substance hydrophile, ce procédé comprenant les étapes suivantes : (A) la production d'une suspension ou d'une dispersion du mélange à traiter dans au moins un agent de dispersion adapté, (B) la mise en contact de la suspension ou de la dispersion issue de l'étape (A) avec au moins une surface hydrophobe solide pour que la ou les substances hydrophobes à séparer se lient à celle-ci, (C) le retrait de la ou des surfaces hydrophobes solides, auxquelles la ou les substances hydrophobes sont liées à l'issue de l'étape (B), de la suspension ou de la dispersion contenant la ou les substances hydrophiles et (D) la séparation de la ou des substances hydrophobes de la surface hydrophobe solide. Selon l'invention, ce procédé sert à séparer des minéraux sulfurés (hydrophobes), en particulier des sulfures de cuivre, de mélanges contenant des oxydes métalliques hydrophiles (minéraux de gangue). La surface solide peut être p. ex. un tapis roulant pourvu d'une surface texturée hydrophobe.
Domke Imme
Hibst Hartmut
Michailovski Alexej
Basf Se
Robic
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