MONOLITHIC COMPOSITE SORBENTS FOR EXTRACTION OF MERCURY FROM AQUEOUS MEDIA Russian patent published in 2023 - IPC B01J20/02 B01J20/26 B01J20/30 C02F1/28 

FIELD: chemistry.

SUBSTANCE: chemistry of high-molecular compounds, namely the production of monolithic composite cryogels based on cross-linked polyethyleneimine with particles of transition metal sulfides, used in ecology, in particular as effective sorbents. The production of polymeric sorption materials that can be used in water treatment methods and ecology, in particular as effective sorbents for post-treatment of surface and drinking water from mercury contamination, as well as for the analytical concentration of mercury in environmental problems monitoring. A monolithic composite cryogel based on cross-linked polyethyleneimine for the extraction of mercury ions from water, which contains particles of metal sulfides selected from the series Cu, Ni, Co, is presented.

EFFECT: provision of a number of high-capacity composite sorbents of Hg(II) ions based on polyethyleneimine with particles of transition metal sulfides, which increase the efficiency of extraction of mercury ions.

1 cl, 1 dwg, 6 ex, 2 tbl