1-VINYL-1,2,4-TRIAZOLE NETWORK COPOLYMERS WITH DIVINYL ESTER OF DIETHYLENE GLYCOL AS SORBENTS OF NOBLE METALS FROM ACIDIC MEDIA AND METHOD OF OBTAINING THEM Russian patent published in 2008 - IPC C08F226/06 B01J20/26 

FIELD: chemistry.

SUBSTANCE: invention pertains to the field of high molecular compounds, and specifically to new nitrogen and oxygen containing network copolymers of 1-vinyl-1,2,4-triazole with divinyl ester of diethylene glycol, which can be used for sorption of gold, silver, platinum, and palladium from acidic solutions. The given engineering problem can be solved by that, network copolymers of 1-vinyl-1,2,4-triazole with divinyl ester of diethylene glycol with general formula: , where n = 94-65 mol. %, m + k = 6-35 mol. %, used as an effective sorbent of gold, silver, platinum and palladium from acidic solutions are synthesised through copolymerisation of 1 -vinyl-1,2,4-triazole with divinyl ester of diethylene glycol in bulk, without a solvent under conditions of radical initiation through dinitrile oleic acid (2 % of the mass of the mixture of monomers), at 60 °C, for a period of 0.17-1.5 hours, in an argon atmosphere with subsequent washing of the network copolymer using ethanol in Soxhlet apparatus and drying in a vacuum until a constant mass is obtained. The ester of diethylene glycol is used as the second polymer and as a cross-linking agent at the same time.

EFFECT: invention can be used for sorbtion of gold, silver, platinum and palladium from acidic solutions.

3 cl, 5 tbl, 9 ex