METHOD OF EXTRACTING PURE Ac OBTAINED FROM IRRADIATED Ra TARGETS Russian patent published in 2011 - IPC G21G4/08 

FIELD: chemistry.

SUBSTANCE: method involves leaching treatment of ²²⁶Ra targets with leaching essentially the entirety of ²²⁵Ac and ²²⁶Ra with nitric or hydrochloric acid, followed by first extraction chromatography for separating ²²⁵Ac from ²²⁶Ra and other Ra-isotopes and second extraction chromatography for separating ²²⁵Ac from ²¹⁰Po and ²¹⁰Pb. There are also two versions of the method of extracting pure ²²⁵Ac from irradiated ²²⁶Ra targets, as well as a pharmaceutically acceptable radioisotope composition.

EFFECT: obtaining pure ²²⁵Ac which can be used to prepare compositions which are suitable for pharmaceutical purposes.

50 cl, 5 dwg