B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 17/028 (2006.01) B01D 11/04 (2006.01) C22B 3/22 (2006.01)
Patent
CA 2568794
The invention relates to a method and apparatus with which the aqueous solution from liquid-liquid extraction in the hydrometallurgical recovery of metals is purified from droplets of organic extraction solution. The aqueous solution is treated in a settling tank, where it is made to flow through a flow channel area with a reduced cross-section that extends over the width of the tank at least at one point. The flow channels are located in the lower section of the droplet coalescer according to the invention, with the upper section of the device being mainly solid.
L'invention concerne une méthode et un appareil à l'aide desquels une solution aqueuse provenant d'une extraction liquide/liquide provenant d'une récupération hydrométallurgique de métaux, est purifiée à partir de gouttelettes de solution d'extraction organique. La solution aqueuse est traitée dans un bac de décantation, où elle circule à travers une zone de canaux d'écoulement présentant une section transversale réduite, qui s'étend sur la largeur du bac, au moins à un emplacement. Les canaux d'écoulement sont situés dans la partie inférieure du coalesceur selon l'invention, la partie supérieure du dispositif étant principalement solide.
Ekman Eero
Kuusisto Raimo
Lyyra Juhani
Nyman Bror
Pekkala Pertti
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
Outokumpu Technology Oyj
Outotec Oyj
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