A mixing impeller for submerging liquid material from a surface to a lower portion of the liquid material by rotating the impeller while the impeller is submerged within the liquid. The impeller includes a helical impeller having one or more surfaces at an angle with respect to the drive shaft of the impeller and a plate perpendicular to the drive shaft. The plate is coupled to the helical impeller at a distal end of the impeller.

The invention relates to a mixing conveyor for an injection molding system, in particular a thixomolding injection molding system, or the like for conveying a granule-powder mixture, comprising the following: a mixing container (10), with at least one feed (11, 13) for granular material (12) and/or powdery material (14); and at least one mixing device (13a, 13b, 13c, 13d) which is designed to mix the granular material (12) and the powdery material (14) to form a granule-powder mixture; and a mixing container outlet (15), which can be arranged in particular in the vicinity of a melting area (51) of the injection molding system (50) or the like, and is designed to discharge the granule-powder mixture or to feed it to the injection molding system (50) or the like for at least partial melting.

Provided is a slurry treatment apparatus includes: a treatment tank for performing any treatment of a solid-liquid reaction, a solid-gas reaction, a gas-liquid reaction, and solid-liquid separation on a slurry containing a metal or a metal compound; a first pipe; a second pipe; and a pump, in which one end of the first pipe has a suction opening for sucking the slurry from the treatment tank, the other end of the first pipe is connected to a suction port of the pump, one end of the second pipe is linked to a discharge port of the pump, the other end of the second pipe is connected to a microbubble generator, and the microbubble generator includes a throttle that throttles a flow of the slurry and a gas supply tube for supplying gas to the throttle, and supplies microbubbles to the slurry in the treatment tank.

A solvent extraction (SX) cell for rare earth recovery comprising a mixer and a settler. The mixer includes a height and/or position adjustable mixer impeller and/or a fluid retaining inlet collar around a lower portion of the mixer impeller and/or one or more sample ports across a height of the mixer. The mixer impeller controlled at least in part in response to analysis of a sample from the one or more sample ports. The settler includes an automated interface regulator and/or one or more interface detection sensor adapted to identify at least an interface between an aqueous layer surface and emulsion layer in the settler. The height of the automated interface regulator controls at least in part in response to the one or more interface detection sensor. A plurality of mixers and a plurality of settlers operatively connected in a modular layout to provide a battery of solvent extraction (SX) cells. A water seal is provided between a lid and walls of the mixers, the settlers, and/or the battery.