J. Chim. Phys.
Volume 60, 1963
|Page(s)||183 - 186|
|Published online||28 May 2017|
Isotope enrichment by thermal diffusion in fused alkali nitrates
Department of Physics, Chalmers University of Technology, Gothenburg, Sweden, Sweden.
Thermal diffusion has been studied in fused nitrates. In the pure salts LiNO3 and RbNO3 the ratios 6Li/7Li and 85Rb/87Rb were highest on the hot side. The Soret coefficients were found to be 3,3.10-5 degrees-1 (temperature region 276-425 degr. C) and 1,0.10-5 degrees-1 (335-483 degr. C) respectively. A number of mixtures of LiNO3 and AgNO3 were investigated in a thermogravitational column. In a run with 60 mole % LiNO3, a cell height of 9,4 cm, a plate distance of 0,023 cm, and a temperature difference between the plate surfaces of about 29 degrees a separation factor of 1,043 was obtained after 120 hours, with 6Li enriched at the top.
© Paris : Société de Chimie Physique, 1963