COMPOSITE FOR CLEANING WATER SURFACE AND SOIL FROM OIL AND OIL PRODUCTS Russian patent published in 2025 - IPC B01J20/26 B01J20/32 

FIELD: chemistry.

SUBSTANCE: invention relates to environmental technologies and specifically to methods of producing sorbent material, and can be used to clean water surfaces and soil from oil and oil products in arctic conditions. Composite for cleaning the surface of water and soil from oil and oil products is in form of granules, having a core made from polymeric sorbent material and an elastomer shell, wherein the core is made from the following components, wt.%: carbamide-formaldehyde resin with formaldehyde emission class of not more than 0.2% – 18-20; unmodified melamine-formaldehyde resin – 7-10; acid curing catalyst – 10-15; solution of sulphonol with water in ratio of 1 g sulphanole to 10 g water – balance. Enclosure is obtained by treating the obtained polymer sorbent material with an elastomer emulsion in an organic solvent, wherein content of elastomer in the emulsion is equal to 7-15 wt.%.

EFFECT: composite has improved characteristics of buoyancy, desorption, moisture capacity, is characterized by high degree of purification of water from oil.

3 cl, 1 dwg, 2 tbl, 3 ex