Аннотация
Processing of apatite raw materials is associated with the formation of multi-tonnage waste - phosphogypsum. The content of rare-earth metals in such waste reaches 1 %, which allows us to consider it a man-made source of rare-earth metals and their compounds. Until now there are neither processing enterprises nor effective technological processes for phosphogypsum processing. It is rational to use a method involving the extraction of valuable components and the overall reduction of phosphogypsum volumes. One such method can be the sorption extraction of REM after leaching of phosphogypsum with hydrochloric acid. In this work the results of sorption by sulphocationites are presented: Purosorb SAC 140 (in H- and Na-forms); Purolite C150 (in H- and Na-forms) and Puromet MTC 1600 (in H- and Na-forms).