Spx Corporation

Michael Giralico

Bernd Gigas

Michael Joseph Preston

Richard Howk

A weir assembly for use with a mixer-settler for liquid-liquid extraction includes in one embodiment an organic weir having an inlet opening below the free surface of the organic phase liquid and a vertically-adjustable front wall allowing adjustments in the position and/or height of the inlet opening. The organic weir can also feature an angled bottom coupled to a lip segment, an incline plate in the interior of the weir, and a front wall that is angled with respect to incoming fluid flow. In another embodiment the weir assembly can independently or additionally include an aqueous weir with a labyrinth section. The aqueous weir can optionally include an adjustable lip hingedly coupled to the top of the final partition in the labyrinth section.

Solvent extraction method and apparatus

An embodiment of the invention includes a cylindrical settler having a longitudinal axis, a conical base centered on the longitudinal axis, a outer wall centered on the longitudinal axis, a mix tank centered on the longitudinal axis and within the outer wall, and a coalescence fence extending from the outer surface of the mix tank.

Cylindrical mixer-settler apparatus and method

An embodiment of the invention includes a trapezoid settler having a longitudinal axis, a base, a first side wall oriented at an angle to the longitudinal axis, a second side wall opposing the first side wall and oriented at an angle to the longitudinal axis, and a coalescence fence connected to the first side wall and the second side wall. The coalescence fence has a first screen, a second screen oriented generally parallel to the first screen, and a media disposed between the first screen and the second screen.

Trapezoid settler apparatus and method for solvent extraction

A method for suspending settled solids in a liquid using a mixing assembly having a mixing vessel, draft tube disposed within the mixing vessel and an impeller disposed within the draft tube. The method includes rotating the impeller in a first rotational direction for a first period of time so as to cause the liquid to flow in a first axial direction. The method also includes rotating the impeller in a second rotational direction so as to cause the liquid to flow in a second axial direction opposite the first axial direction.

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Rochester, NY, United States of America

Michael Giralico