METHOD OF OBTAINING STRONTIUM-82 Russian patent published in 2014 - IPC G21G4/04 

FIELD: chemistry.

SUBSTANCE: method of obtaining strontium-82 includes carrying out the following operations: irradiation in the flow of accelerated charged particles of a target, representing a steel envelope, filled with metal rubidium, opening the envelope of an irradiated target in a gas medium, which does not react with metal rubidium, melting irradiated metal rubidium in the envelope and supply of its melt into a chemical reactor, supply of nitrous oxide in portions into the chemical reactor, at least, until growth of a temperature in the chemical reactor with supply of fresh portion of nitrous oxide stops, dissolution in the chemical reactor of formed in the chemical reactor explosion-proof and fireproof rubidium salts and strontium-82 1.5÷4.5 M present in them with a nitric acid solution, separation of strontium-82 from the obtained solution by sorption. In particular cases of realisation the method includes: application of strontium-specific sorbent 4,4'(5')-di(tert-butylcyclohexano)-18-crown-6, applied on a polymer of polyacrylate structure, purification of a strontium-82 solution from traces of crown ether on a column with a cation-exchange resin, correction of the volume and acidity of strontium-82 solution.

EFFECT: method improvement.

4 cl, 1 dwg