Removing oil from water

Details Removing oil from water Removing oil from water

1977-08-12

1979-04-24

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 36, 210 40, 210DIG26, C02B 902

Patent

active

041510780

ABSTRACT:
Hydrophobic silica, containing sorbed HF values, is used to remove oil from water by sorption of the oil onto the silica and then separating the oil/silica mixture from the water. Furthermore, the present invention pertains to recovering the silica from the oil by aqueous treatment in such a manner that the hydrophobicity of the silica is overcome and the silica becomes hydrophilic, thereby releasing the oil.

REFERENCES:
patent: 2535036 (1950-12-01), Broughton
patent: 3203759 (1965-08-01), Flemmert
patent: 3484371 (1969-12-01), Biegler et al.
patent: 3562153 (1971-02-01), Tully et al.
patent: 3752762 (1973-08-01), Cincotta

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