%0 Journal Article %T Rare Earth Metals Leaching from Coal Ash and Theirs Concentration %A Senik, E.. %A Vinogradov, M.. %A Taranov, R.. %A Kozodaev, A.. %A Ksenofontov, B.S. %A Voropaeva, A.. %K rare earth metals leaching, acid and biological treatment, coal ash, ion exchange concentration, ion exchange resins, scandium, yttrium, lanthanum. %J Safety in Technosphere %D 2016 %N 5 %P 7 %I INFRA-M Academic Publishing LLC.