ORNL-4191 - the Molten Salt Energy Technologies Web Site

that the behavior of the rare-earth fluorides, YF,,
and BaFz in both LiF and the LiF-BeF2 mixture
studied can be approximated by assuming Raoult's
law. The deviation of SrF, and, in the binary sys-
tern, LaF3 from this pattern is unexplained.
241
The relative volatilities of the fluorides of the
rare earths, yttrium, barium, and sf rontium ace low
enough to allow adequate removal in a still of
simple design. Zirconium removal, however, will
be iris ignifican t.
Table 20.2. Comparison of Experimental Relative Volatilities with Calculated Values
............... _ __
-__-
Calculated Measured
Component Relative
Volatility
Relative Volatility
in Ternary System
Okxperimental
%C s I c nla t e d
Relative Volatility
in Binary System
aexperirnenta I
-
a ca IC iila te d
NdF3 3.0 x IO-^