HYDROPHOBIC SORBENT PREPARATION METHOD Russian patent published in 2003 - IPC

Abstract RU 2214859 C1

FIELD: oil spills clean-up. SUBSTANCE: preparation of disperse hydrophobic oil sorbent from peat comprises preliminarily drying the latter, briquetting it, laying briquettes on trays in sealed chamber, and thermally treating briquettes for 3.5-5 h at 270-300 C under anaerobic conditions, after which sorbent is cooled and heating-caused depression in chamber is compensated after the end of heating by feeding inert gases or water into chamber until temperature within chamber drops to 90-100 C. Thermally treated briquettes are ground to form fraction -3 mm. EFFECT: enabled preparation of floating sorbent with high oil capacity. 2 cl, 2 dwg, 2 tbl

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RU 2 214 859 C1

Authors

Gridin O.M.

Gridin A.O.

Muratov V.Ju.

Muratov E.V.

Dates

2003-10-27Published

2002-09-11Filed