METHOD OF MAKING SORBENT Russian patent published in 2010 - IPC B01J20/281 B01J20/10 B01J20/22 

FIELD: chemistry.

SUBSTANCE: method involves treating silica porous carrier having hydroxyl groups on its surface with an aqueous solution of nickel chloride, evaporation, drying, treatment with acetyl acetone in an acidic medium, filtration, drying nickel acetyl acetone obtained on the carrier at low pressure, washing with chloroform, treatment with polymethylsiloxane to obtain a monomolecular layer of a polymer film on the surface of the sorbent and drying in an air or inert gas stream at 50-60°C until evaporation of the solvent.

EFFECT: thermally stable sorbent which works efficiently in polar solvents.

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