Разделение РЗЭ на легкую и среднетяжелую группы экстракцией в среде соляной кислоты

Abstract

Today heavy REE are still in high demand by industry; therefore, sources with a high content of heavy rare-earth metals are the most promising. These sources include uranium ore treatment solutions. In this work separation of light and heavy groups of REE was investigated, pH with the highest separation coefficient was determined, isotherm of extraction process was obtained, and the theoretical number of stages was determined. Organophosphorus acid diluted by aliphatic solvent was used as an extractant.