METHOD OF CLEANING WATER SURFACE FROM FILM OF OIL OR OIL PRODUCTS Russian patent published in 2021 - IPC C02F1/28 B01D17/02 C02F1/54 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of cleaning a water surface. Described is a method of cleaning a water surface from a film of oil or oil products, involving treatment of a floating film of oil or oil products with powder from a mixture of organomineral composition, subsequent deposition of oil floating conglomerate formed as a result of selective adsorption, in which as a precipitating substance is used a mixture of cellulose-mineral material having a moisture content of 45 ± 5 %, having the following composition: cellulose C₆H₁₀O₅ 35 ± 5 %, calcium carbonate CaCO₃ 15 ± 5 %, aluminum oxide Al₂O₃ 0.8 ± 0.2 %, sodium oxide Na₂O 0.04 ± 0.01 %, potassium oxide K₂O 0.01 ± 0.005 %, magnesium oxide MgO 0.04 ± 0.01 %, phosphorus oxide P₂O₅ 0.01 ± 0.005 %, and slaked lime Ca(OH)₂, the weight fraction of which is determined by formula: C_Ca(OH)2 = M(1.5C_carb.² − C_carb.³ − 0.1C_carb.), where M is the moisture content of the cellulose-mineral material (in weight fractions); C_carb. is mass fraction of calcium carbonate in cellulose-mineral material; C_Ca(OH)2 is mass fraction of lime in mixture, said mixture is dried in air at temperature 120 ± 5 °C to relative humidity 8 ± 1 %.

EFFECT: technical result is higher efficiency of cleaning.

1 cl, 1 tbl, 6 dwg, 2 ex