Method for removing a silicic compound from the waste liquor of

Details Method for removing a silicic compound from the waste liquor of Method for removing a silicic compound from the waste liquor of

1984-07-10

1986-07-29

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210660, 210673, B01D 1500

Patent

active

046029990

ABSTRACT:
The present invention relates to a method for removing a silicic compound from the waste liquor of steel pickling. A filtering method using a filter fabric or biscuit plate is impractical as an industrial method because the filtering medium becomes clogged.
The present invention is characterized by an adsorption method in which silicic compounds are adsorbed on adsorbent substrates in an optional part of an adsorption bed.
The present invention is characterized in that the waste liquor is passed through the adsorption bed for a two-month period or longer without clogging occurring.

REFERENCES:
patent: 2503769 (1950-04-01), Roberts
patent: 2504695 (1950-04-01), Jukkola et al.
patent: 4098691 (1978-07-01), Filby
patent: 4125594 (1978-11-01), Su et al.
patent: 4276180 (1981-06-01), Matson
R. K. Sley "Colloid Chemistry of Sillica & Sillicates" (Cornell University Press) 43 1955.
Tarutani "Study of Sillicic Acid in Water" Journal of the Chemical Society of Japan, vol. 77, p. 1721, (1956).

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