Liquid purification or separation – Processes – Separating
Patent
1988-02-08
1990-05-29
Lacey, David L.
Liquid purification or separation
Processes
Separating
210780, 210791, 210137, 210331, 210347, 210402, 210928, 162 29, 162 301, 162 3011, B01D 3308
Patent
active
049293559
ABSTRACT:
In a causticizing process for separating at least white liquor and lime sludge out of the process, filters in the form of discs or drums are arranged. The filtrations take place under positive pressure and the filters are arranged in a closed system. Such a pressure filter can also be arranged for the separation of sludge.
REFERENCES:
patent: 4525274 (1985-06-01), Willus et al.
patent: 4695381 (1987-09-01), Ragnegard
Ragneg.ang.rd Samuel
Sjoberg Arne
AB Hedemora Verkstader
Dang Thi
Lacey David L.
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