COMPOSITION OF EXTRACTION-CHROMATOGRAPHIC MATERIAL FOR THE SELECTIVE SEPARATION OF U (VI)

摘要

The composition of an extraction chromatographic material impregnated type for selective separation of U (VI), Th (IV), Np (IV) and Pu (IV) from nitric acid solutions comprising as complexing components methyltrioctylammonium nitrate (MTOAN) at constant 33% and fosforilpodandy - derivatives of 1,5-bis [2- (oksietoksifosforil) -4- (alkyl) phenoxy-3-oxapentane (I) - where R is alkyl C-Savanoriu Str amount of 1 to 16%, and the rest - polymeric matrix - macroporous spherical granular copolymers of styrene with divinylbenzene, with brand pa zmerom granules 40-200 microns formula