A determination of the solubility of lithium oxide in liquid lithium by fast neutron activation

Autor: Victor A. Maroni, R.M. Yonco, J.E. Strain, J.H. DeVan
Rok vydání: 1979
Předmět:
Zdroj: Journal of Nuclear Materials. 79:354-362
ISSN: 0022-3115
DOI: 10.1016/0022-3115(79)90100-4
Popis: The solubility of lithium oxide in liquid lithium has been measured in the temperature range of 195 to 734°C. A direct sampling method was employed in which nickel sampling tubes fitted with 2 μm pore size filters were used to take samples of the oxide-saturated lithium. The samples, still contained in their sampling tubes, were analyzed for oxygen content by a fast neutron activation method. A value for the oxygen blank attributable to the sampling tubes was derived from a regression analysis of the individual solubility data points. The resulting solubility values are considerably lower than those reported by previous investigators and can be represented by the equations In S(mol% Li2O) = 6.054–6669/T, log S ∗ (wppm oxygen) = 6.992–2896/T . The results indicate that removal of oxygen from lithium to a level of about 7 wppm (the solubility at 200°C) by cold trapping or by filtration should be feasible.
Databáze: OpenAIRE