haruldased muldmetallid, ekstraheerimine, ioonvahetus, jaotuskoefitsient, eraldustegur, orgaaniline lahusti, ekstrahent, seebistamine, taasekstraheerimine, kerged muldmetallid, fosfororgaanilised happed, magistritööd
rare earth elements, extraction, ion exchange, distribution coefficient, separation factor, organic solvent, extractant, saponification, re-extraction, light rare earth elements, organophosphorus acids, masters theses