METHOD OF WATER TREATMENT FROM HYDROCARBON, SORBENT FOR WATER TREATMENT FROM HYDROCARBON AND A METHOD OF ITS PREPARING Russian patent published in 1995 - IPC

FIELD: water treatment. SUBSTANCE: for treatment of water from hydrocarbons, for example, poured on the surface and/or oil emulsified in water and/or petroleum products the sorbent made as granules (for example as beads with diameters from 3-5 to 10-12 mm) is added, water to be treated, sorbent and hydrocarbon were mixed up to sorbent saturation with hydrocarbon. Sorbent granules saturated with hydrocarbon can be removed from the surface by mechanically. Indicated sorbent is prepared by mixing solutions of sodium silicate and hydrochloric acid followed by polysilicic acid sol formation, forming gelatinized hydrogel granules, aqueous washing granules, their hydrophobization with butanol solution of trimethylchlorosilane, the second aqueous washing and drying sorbent granules. EFFECT: improved method of water treatment. 4 cl, 3 tbl