Solvent extraction mixer settler apparatus

Abstract

A mixer settler [] comprises a settling tank [], an organic launder [] provided within the settling tank [], an aqueous launder [] provided within the settling tank [], and an isolated aqueous weir box [] which is positioned internally or externally relative to an outer profile of the mixer settler [], the isolated aqueous weir box [] being at least partially operatively isolated from the settling tank [] by the aqueous launder []. The isolated aqueous weir box [] comprises an adjustable weir [] which separates a recycle chamber [] from an advance chamber [] therein. The organic launder [] is operably connected to an organic advance effluent pipe [], and the aqueous launder [] is operably connected to the isolated aqueous weir box []. The organic launder [] may be operably connected to an isolated organic weir box [] which is separate from the isolated aqueous weir box [], and may further comprise an adjustable weir [] which separates a collection chamber [] from an advance chamber []. Also disclosed, is a kit for modifying or fabricating a mixer settler [], as well as a solvent extraction process.