caa a22 4500 469110449 CHVBK 20180323133109.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF02037477 doi (NATIONALLICENCE)springer-10.1007/BF02037477 Application of amine extraction to the production of pure zirconium salts [Elektronische Daten] [D. Schrötterová, P. Nekovář, M. Mrnka, M. Bouša] Our aim was to discover a method of separating zirconium(IV) and uranium(VI) from solutions. It is known that Zr(IV) and U(VI) are effectively extracted by tertiary amines from weak acidic sulfate solutions but the possibility of extraction decreases with increasing acidity. The transition from tertiary amine to primary amine Primene JMT enables the extraction of Zr also from more acidic solution. If both Zr and U are present in an aqueous solution, Zr is extracted preferentially and only the free part of the amine can convert uranium to an extract. The separation described below was carried out by preferentially stripping zirconium from the organic phase. The application of nitrate solution (2M HNO3) to eliminate Zr from the solvent was tested. This method does not demand any special regeneration of the extraction agent and the amine nitrate, formed in the organic phase, can be used for further extraction of Zr without modification. Using this method of separation, a solution for producing pure ZrOCl2·8H2O was obtained. Akadémiai Kiadó, 1992 Schrötterová D. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut Nekovář P. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut Mrnka M. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut Bouša M. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 163/1(1992-11-01), 29-36 0236-5731 163:1<29 1992 163 10967 https://doi.org/10.1007/BF02037477 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02037477 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schrötterová D. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut NATIONALLICENCE 700 1- Nekovář P. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut NATIONALLICENCE 700 1- Mrnka M. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut NATIONALLICENCE 700 1- Bouša M. Prague Institute of Chemical Technology, Prague, (Czecho-Slovakia) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 163/1(1992-11-01), 29-36 0236-5731 163:1<29 1992 163 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer