Reaction of Oxygen with Solutions of Neodymium Chloride in Alkali Chloride Melts: A Spectroscopy and Kinetics Study

Reaction of oxygen with solutions neodymium chloride in LiCl and 3LiCl–2KCl melts was studied at 450 °C–750 °C. The reaction resulted the formation oxychloride effect temperature, amount passed through melt (oxygen-to-neodymium molar ratio), gas phase composition (O 2 , O –H O, Ar–O O) on course were considered. Size particles comprising solid precipitates formed determined. High temperature electronic absorption spectroscopy used to determine kinetic parameters (reaction rates, rate constants, coefficients). activation energy evaluated.