SORPTION MATERIAL FOR THE STRONTIUM RADIONUCLIDES SELECTIVE EXTRACTION FROM COMPLEX BY IONIC COMPOSITION SOLUTIONS AND METHOD OF THE STRONTIUM RADIONUCLIDES EXTRACTION WITH ITS HELP Russian patent published in 2019 - IPC G21F9/12 

FIELD: technological processes.

SUBSTANCE: group of inventions relates to the strontium radionuclides from the multicomponent solutions sorption extraction sorption materials and methods, and can be used for the complex in their ionic composition solutions and aqueous media purification. Strontium radionuclides selective extraction sorption material is the nanostructured barium aluminosilicate, synthesized in hydrothermal conditions at 85–95 °C in the system, which as the initial components contains KOH, SiO₂, AlCl₃ and BaCl₂ at the molar ratio SiO₂:AlCl₃:BaCl₂=(1–5):0.5:0.25. Barium aluminosilicate has the BaAl₂Si_nO_(n+2)⋅2⋅mH₂O composition, where n = 2, 4, …10; m takes both integer and fractional values greater than 1. There is also the strontium radionuclides from aqueous solutions selective extraction method.

EFFECT: group of inventions allows to increase the complex in their ionic composition strontium radionuclides from aqueous solutions and solutions sorption extraction efficiency.

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