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 water treatment from hydrocarbon, for example, poured on the surface and/or oil emulsified in water and/or petroleum product the sorbent is added on the surface or in water volume. Sorbent is made as granules, for example, beads with diameter from 3-5 to 10-12 mm. Water to be treated, sorbent and hydrocarbon were stirred up to sorbent saturation with hydrocarbon. Sorbent granules saturated with hydrocarbon can be mechanically removed from the surface. Indicated sorbent is prepared by mixing sodium silicate and hydrochloric acid solutions followed by polysilicic sol formation, forming gelatinized hydrogel granules, aqueous washing granules, treatment of washed granules with strong hydrochloric acid, and hydrophobization with a mixture of trimethylchlorosilane and hexamethyldisiloxane, the second washing and drying sorbent granules. EFFECT: improved method of water treatment. 4 cl, 3 tbl