Method and apparatus for removing metal sulphide particles...

B - Operations – Transporting – 01 – D

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Details

B01D 61/14 (2006.01) B01D 53/14 (2006.01) B01D 71/34 (2006.01) C01B 17/00 (2006.01)

Patent

CA 2640061

The invention provides a method for removal of metal sulphide particles from a liquid stream comprising a solvent and metal sulphide particles, using a filter system comprising at least one membrane, the method comprising contacting the liquid stream with the membrane, thereby transferring metal sulphide particles from the liquid stream onto the membrane surface to obtain a liquid stream depleted of metal sulphide particles and a filter system comprising a membrane enriched in metal sulphide particles. The invention further provides an apparatus for removal of metal sulphide particles from a liquid stream comprising a solvent and metal sulphide particles, wherein the apparatus comprises a solvent regenerator column (1) comprising at least one inlet and two outlets, which solvent regenerator column is connected to filter system (2) comprising at least one membrane and comprising at least one inlet and one outlet, which the filter system is connected to a separation column (3) comprising at least one inlet and two outlets.

L'invention concerne un procédé d'élimination de particules de sulfure métallique d'un courant liquide comprenant un solvant et des particules de sulfure métallique, en utilisant un système de filtration comprenant au moins une membrane, le procédé comprenant la mise en contact du courant liquide avec la membrane, transférant ainsi les particules de sulfure métallique du courant liquide vers la surface de la membrane pour obtenir un courant liquide appauvri en particules de sulfure métallique et un système de filtration comprenant une membrane enrichie en particules de sulfure métallique. L'invention concerne également un appareil pour l'élimination de particules de sulfure métallique d'un courant liquide comprenant un solvant et des particules de sulfure métallique, l'appareil comprenant une colonne de régénération de solvant (1) comprenant au moins un orifice d'entrée et deux orifices de sortie, ladite colonne de régénération de solvant étant connectée à un système de filtration (2) comprenant au moins une membrane et comprenant au moins un orifice d'entrée et un orifice de sortie, ledit système de filtration étant connecté à une colonne de séparation (3) comprenant au moins un orifice d'entrée et deux orifices de sortie.

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