COLLOID-STABLE NANOSIZE SORBENT TO DECONTAMINATE SOLID LOOSE MATERIALS AND METHOD OF SOLID LOOSE MATERIALS DECONTAMINATION USING SAID SORBENT Russian patent published in 2010 - IPC G21F9/28 B82B1/00 B01J20/00 

FIELD: power engineering.

SUBSTANCE: proposed sorbent represents the product of interaction between cations taken from transition metals in equivalent amount and ferrocyanide-anions that make precursors of sorbent being produced, in stable carboxyl-containing polymer colloid. Said stable carboxyl-containing polymer colloid represents poly(acrylic acid), its soluble copolymers and poly(acrylic acid) copolymer emulsion with particle size not exceeding 500 nm Sorbent nanoparticles with localised radio nuclides are separated by settling with the help of cation flocculants which allows decreasing the amount of secondary radioactive wastes formed indecontaminaton.

EFFECT: maximum decontamination plus reduced costs and labor input.

10 cl, 6 ex, 5 dwg