caa a22 4500 465732658 CHVBK 20180323111745.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF02039600 doi (NATIONALLICENCE)springer-10.1007/BF02039600 Actinide and lanthanide extraction from nitric acid solutions by flotation [Elektronische Daten] [E Mezhov, A. Samatov, L. Troyanovsky] Flotation of thorium, plutonium (IV), uranium(VI) and gadolinium from aqueous nitric acid solutions (HNO3 concentration from 0.01 to 5.0M) was investigated using lauryl phosphoric acid (LPA) as a SAS-collector. It is established that the extent of removal of the metal ions increases with the amount of LPA introduced, regardless of the solution acidity. At a fixed mole LPA to metal ratio the extent of uranium(VI) and gadolinium removal is reduced with increasing acidity, while in case of plutonium(IV) and thorium this parameter remains constant. It is shown that in principle ∼100% extraction of plutonium(IV) and thorium by flotation is possible regardless of the acidity of aqueous solutions. Ca(NO3)2 added to the system in the amount of 0.5M does not significantly affect the flotation extraction of thorium. Akadémiai Kiadó, 1990 Mezhov E. AUSRI of Inorganic Materials, Rogov Street 5, 123060, Moscow, USSR aut Samatov A. AUSRI of Inorganic Materials, Rogov Street 5, 123060, Moscow, USSR aut Troyanovsky L. AUSRI of Inorganic Materials, Rogov Street 5, 123060, Moscow, USSR aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 143/2(1990-12-01), 323-328 0236-5731 143:2<323 1990 143 10967 https://doi.org/10.1007/BF02039600 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039600 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mezhov E. AUSRI of Inorganic Materials, Rogov Street 5, 123060, Moscow, USSR aut NATIONALLICENCE 700 1- Samatov A. AUSRI of Inorganic Materials, Rogov Street 5, 123060, Moscow, USSR aut NATIONALLICENCE 700 1- Troyanovsky L. AUSRI of Inorganic Materials, Rogov Street 5, 123060, Moscow, USSR aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 143/2(1990-12-01), 323-328 0236-5731 143:2<323 1990 143 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer