Process for filtering solid-liquid mixtures within an enclosed p

Details Process for filtering solid-liquid mixtures within an enclosed p Process for filtering solid-liquid mixtures within an enclosed p

1993-11-05

1996-07-30

Popovics, Robert J.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210770, 210771, 210774, 210808, 210398, 34 82, 34480, 405128, 588900, 134 31, 134 40, 149124, B01D 3704

Patent

active

055408460

ABSTRACT:
The invention relates to a process for the separation, in particular filtration of liquids and solids from solid-liquid mixtures, such as from a mineral, ore, coal or sludge suspensions of contaminated earth. The processing space of the filtration apparatus is submitted to overpressure and includes a collector container for solid-liquid mixture, a pressure filter, a discharge system and container for condensate and solid matter. The separation or filtration takes place at an overpressure and at an elevated temperature, preferably 40.degree. C. to 300.degree. C., conveniently 60.degree. C. to 200.degree. C., preferably about 150.degree. C. The pressure filter device communicates with a source for a heated medium.

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