Solvent extraction settler arrangement

A solvent extraction settler arrangement adapted for hydrometallurgical liquid-liquid extraction processes, the settler arrangement comprising

• a mixing unit for preparing a dispersion from mutually immiscible solutions,
• a settler having a feed end and a discharge end, said settler being arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end,
• a feeding device located at the feed end for feeding the dispersion prepared by the mixing unit to the settler, characterized in that the feeding device comprises
• an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end, said feed launder extending alongside the feed end of the settler, the feed launder having a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end, and
• a plurality of feed pipes arranged along the length of the feed launder at a distance from each other, each feed pipe having a third end that opens to the inner space of the feed launder at the bottom to receive the dispersion from the feed launder and a fourth end that opens to the settler to conduct the dispersion to the settler.