Patent ID: 7465402
Filing Date: 2008-12-16
Classification: B01D,C22B,Y02P

Abstract:
1. A method for the recovery of metals in a separation section of a liquid-liquid extraction process by guiding a dispersion formed of an aqueous solution and an organic solution evenly over the cross-section of a separation section, the method comprising: a) equipping a feed end of the extraction separation section with a directional member, said directional member comprising at least two essentially solid directional plates each connected from one sidewall to the opposite sidewall, wherein the lower edge of the directional plates slopes from the sidewalls of the settler downwards towards the centre at an angle of 0.2-2° in relation to the horizontal; b) feeding the dispersion from the extraction mixing section into the centre of the feed end of the separation section; and c) routing the bulk flow of the dispersion under the first directional plate of the directional member causing the dispersion to flow into an essentially vertical upwards direction in a directional channel formed between the directional plates, and causing the dispersion to flow over the second directional plate.