Kozhemiak, Maryna A.Кожемяк, Марина АнатоліївнаКожемяк, Марина Анатольевна2018-05-082018-05-082017III Ukrainian-Polish scientific conference ,,Membrane and Sorption processes and technologies" (Kyiv, December 12-14, 2017). Abstracts I Editors: Vakuliuk P. -Kyiv: NaUKMA, 2017. -315 p.https://dspace.onu.edu.ua/handle/123456789/14751Today rare earth metals are rightfully considered a very scarce commodlty on international markets. Therefore, the active search for alternative channels for the extraction of rare earth metals is one of the main tasks for all the leading .states of the world today. There are prospects in this direction in Ukraine. One of the sources of such metals is technological waste from metallurgical and other enterprises, as well as dumps of coal mines, where there are a lot of scarce elements - scandium, niobium, lanthanum, etc.enadsorption of lanthanumsolid solutionsArticle