Process for manufacturing a filter aid

Details Process for manufacturing a filter aid Process for manufacturing a filter aid

1982-09-29

1984-06-05

Hart, Charles N.

Liquid purification or separation

Processes

Separating

201 17, 208 8LE, 210503, B01D 3702

Patent

active

044527071

ABSTRACT:
In the extraction of coal the liquid coal extract is filtered using a filter aid produced by washing the filter cake with a low viscosity, high boiling point, low vapor pressure ester and then calcining the cake to remove the wash solvent and other combustible constituents from the cake.

REFERENCES:
patent: 3284320 (1966-11-01), Fannin et al.
patent: 4157305 (1979-06-01), Muller
patent: 4260485 (1981-04-01), Carr et al.
patent: 4301015 (1981-11-01), Parsons et al.

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