Possible routes for pyrochemical separation: Focus on the reductive extraction in fluoride media

• DOI: 10.1351/pac-con-12-04-06
• Publication Date: 2012-10-09T21:12:02Z
• Authors: Sylvie Delpech
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Molten salts (MSs) such as fluoride or chloride at high temperature (400–800 °C) are solvents known for their solvation power and electroactivity range. Rare earths, lanthanides, actinides, refractory metals can be dissolved, treated, purified in MSs. The properties of these particularly interesting nuclear spent-fuel reprocessing. pyrochemical separation extraction solutes performed using several methods taking into account the effects redox and/or acidity. This paper is focused on reductive method by contacting a liquid metal (LM) containing species an MS. analytical model developed to calculate efficiency detailed this paper. To apply model, one essential point establishment database related approach retained propose based analysis both thermochemical data pure compounds experimental measurements reported literature described case lanthanides use function process parameters given well comparison between two reducing agents considered.