B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 11/04 (2006.01) C22B 3/00 (2006.01) C22B 3/02 (2006.01)
Patent
CA 2484243
The invention relates to a method for controlling and compressing a dispersion formed in the mixing stage of liquid-liquid extraction. The compression of the dispersion is achieved by reducing the cross-section of the separation section in the direction of flow and by equipping the separation section with a dispersion-damming member. The equipment according to the invention thus comprises a settler, which is essentially trapezoid in shape so that its cross- section is wider at the feed end of the settler and gets smaller towards the rear end of the settler, from whence the separated solutions are discharged from the settler, and the settler is equipped with at least one device to dam up the dispersion. In particular the method and equipment relate to the extraction process used in the recovery of metals.
L'invention concerne un procédé permettant de commander et de comprimer une solution de dispersion formée durant l'étape de mélange d'une extraction liquide-liquide. La compression de la solution de dispersion est obtenue en réduisant la section transversale de la section de séparation dans la direction d'écoulement et en équipant la section de séparation d'un élément d'endiguement de la solution de dispersion. L'équipement de cette invention comprend donc un décanteur, de forme sensiblement trapézoïdale de façon que sa section transversale soit plus large à son extrémité d'alimentation et devienne plus petite en direction de son extrémité arrière d'où les solutions séparées sont évacuées, et ce décanteur est équipé d'au moins un dispositif pour endiguer la solution de dispersion. Plus spécifiquement, le procédé et l'équipement de cette invention concernent le processus d'extraction utilisé dans la récupération de métaux.
Ekman Eero
Hultholm Stig-Erik
Kuusisto Raimo
Lilja Launo
Lyyra Juhani
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Outokumpu Oyj
Outotec Oyj
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