Abstract: This study deals with the saturation and adsorption of boric acid onto nuclear grade lithium resin , the effect of temperature on saturability resulting from saturated resin boron, and boron releaseat different concentrations of boric acid. The results have shown that that theboric acid onto resin is a longer process; resin tends to be saturated when boric solution reaches elevenfold volume of resin; a certain degree of boron release appears when water flow temperature rises; a new equilibrium is reached when effluent reaches sixfold volume of resin.

Key words: Nuclear grade resin, Boron, Dynamic performance