Deoxygenation and purification of liquids

Details Deoxygenation and purification of liquids Deoxygenation and purification of liquids

1985-09-11

1986-12-16

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210757, 210763, 210777, C02F 170, C02F 172, B01D 3702

Patent

active

046295712

ABSTRACT:
A layer of precoat filter aid material including powdered activated carbon removes oxygen and impurities from a liquid having hydrazine added thereto. Oxygen concentrations may be reduced to parts per billion concentrations. Suspended solids can be removed by the precoat layer, and if the precoat layer includes an active particulate material, either as a component of the precoat layer or as an underlayer, the concentration of impurities and dissolved solids in the liquid can also be reduced.

REFERENCES:
patent: 3674686 (1972-07-01), Brimmer et al.
patent: 4056469 (1977-11-01), Eichenhofer et al.
patent: 4190532 (1980-02-01), Halbfoster
patent: 4238334 (1980-12-01), Halbfoster
patent: 4556492 (1985-12-01), Dickerson et al.
patent: 4574071 (1986-03-01), De Silva et al.

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