METHOD OF PRODUCING IMPREGNATED SORBENT Russian patent published in 2012 - IPC B01J20/20 C01B31/08 

FIELD: process engineering.

SUBSTANCE: invention relates to production sorbents intended for entrapping radioactive isotopes. Proposed method comprises preparing impregnation solution that contains triethylendiamine and potassium or barium iodide, impregnating active carbon grains with said solution, aging and thermal treatment. Carbon with grain size of 1.5-3.5 mm, volume of micro pores of 0.35-0.60 cm³/g, volume of transfer pores of 0.15-0.35 cm³/g, is used. Impregnation is performed dispensing impregnation solution. Total volume of impregnation solution makes 0.82-1.00 of total volume of pores of active carbon.

EFFECT: higher degree of entrapment of radionuclides of iodide-131 and methyl iodide-131.

3 cl, 3 ex