Filtration with biogenetic silica

Details Filtration with biogenetic silica Filtration with biogenetic silica

1984-07-13

1987-02-24

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

55 29, 55 98, 55387, 55522, 55524, 210689, 210807, 210282, 210484, 2105021, 210506, B01D 1500, B01D 5304

Patent

active

046456058

ABSTRACT:
Disclosed is the filtration of fluids by utilizing porous biogenetic silica ash devoid of fiber alone or combined with additives. The biogenetic silica may be in particles or prilled or pelleted. Solid particles and liquids are filtered from gases and liquids by passing them through the biogenetic silica. The additives are materials which attract the impurities into the pores of the biogenetic silica, such as water-swellable polymers or carbon remaining on the biogenetic silica when incompletely pyrolyzed. The carbon can be activated.

REFERENCES:
patent: 2892240 (1959-06-01), Frankenhoff
patent: 3889608 (1975-06-01), Pitt
patent: 3959007 (1976-05-01), Pitt
patent: 4105459 (1978-08-01), Mehta
patent: 4460292 (1984-07-01), Durham et al.

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