Solubility of oxides of rare earth elements in chloride-fluoride and fluoride melts

A. B. Ivanov, V. A. Volkovich, A. V. Shchetinskiy, A. S. Mukhamadeev, A. A. Ryzhov, A. I. Petrov. 

ABSTRACT

The method of isothermal saturation was used to determine solubility of rare earth oxides (yttrium, lanthanum, cerium, praseodymium, neodymium and samarium) at temperatures up to 1400^oC in molten mixtures based on calcium and barium chlorides and fluorides of the following compositions CaCl₂–CaF₂ (20 or 75 mol % CaF₂), BaCl₂–BaF₂ (15 or 73 mol % BaF₂), CaF₂–BaF₂ (50 mol % BaF₂).

KEY WORDS:

yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, oxide, solubility, chloride-fluoride melts.

DOI: 10.31857/S0235010621040046