Solvent addition to deep bed filter

Details Solvent addition to deep bed filter Solvent addition to deep bed filter

1980-08-11

1985-04-23

Cintins, Ivars

Liquid purification or separation

Processes

Separating

210799, 210189, 210265, 210269, B01D 2310

Patent

active

045129010

ABSTRACT:
Oil-water mixtures are by-products of a number of known commercial activities such as crude oil production and power plant operation. Disposition of such mixtures in most all cases is prohibited by environmental regulation. Disposition may be effected, however, after separation of the oil from the water. This separation may be accomplished in a deepbed type filter. Where the oil in the water is unusually viscous or has a waxy, tar-like, or sticky consistency, for example, rejuvenation of the filter bed is enhanced by the addition of a small amount of a solvating liquid to the oil-water mixture before filtering.

REFERENCES:
patent: 2430182 (1947-11-01), McGuire et al.
patent: 3550774 (1970-12-01), Hirs et al.
patent: 3965004 (1976-06-01), Garber
patent: 3992291 (1976-11-01), Hirs
John H. Perry, Chemical Engineers' Handbook, 4th ed. (New York: McGraw-Hill Book Co., Inc., 1963) pp. 19-58 and 19-59.

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