| 摘要 |
FIELD: chemistry.SUBSTANCE: surface of a film of oil or oil products is treated with a reagent which contains a natural polymer and the reaction product is collected. The reagent used is polysaccharide microgel with mass of 20000-200000 Da and particle size of 50-600 nm in an aqueous solution with concentration of not less than 0.2 g/l. According to the first version of the method, before and after spraying the reagent, the periphery of the film of oil or oil products is treated with a biodegradable surfactant in the form of an aqueous solution with concentration of not less than 0.1 g/l. According to the second version of the method, the reagent is first mixed with a biodegradable surfactant in the form of an aqueous solution with concentration of not less than 0.1 g/l. Mixing is carried out until the ratio of the polysaccharide microgel to the biodegradable surfactant is 12:1-2:1.EFFECT: high efficiency of the process of collecting oil or oil products from a water surface, low specific consumption of reagents and low residual content of said reagents in water.2 cl, 6 ex |
