Method of separating and purifying cesium-131 from barium carbonate

Abstract From the Canadian patent

There is described a method for purifying Cs-131. The method comprises the steps of: (a) dissolving neutron-irradiated barium comprising barium and Cs- 131, in a , first solution comprising an acid whereby the barium and Cs-131 are dissolved in the , first solution; (b) adding the first solution to a second solution comprising carbonate, under conditions of rate of addition and mixing sufficient to precipitate the barium as a , solid, whereby the Cs-131 remains dissolved in the combined solution of the first and , second solutions; and (c) separating the solids from the combined solution containing the , Cs 131, thereby purifying the Cs-131.