Separation of W from Ta, Hf, Lu and Mo by BPHA-C₅H₁₁OH/HCl extraction system

Separation of W from Ta, Hf, Lu and Mo by BPHA-C 5 H 11 OH/HCl extraction system Model experiments for chemical study of seaborgium, the 106th element 1 first-author 2 2 2 2 2 3 3 Department of chemical Engineering, Yangzhou University, Yangzhou 225002 Department of chemical Engineering, Yangzhou University, Yangzhou 225002 Gesellschaft für Schwerionenforschung(GSI), Planckstr. 1, D-64291 Darmstadt, Germany Gesellschaft für Schwerionenforschung(GSI), Planckstr. 1, D-64291 Darmstadt, Germany Institut für Kernchemie, Universitat Mainz, 55099 Mainz, Germany Institut für Kernchemie, Universitat Mainz, 55099 Mainz, Germany In the batch experiment with W, Ta, Hf, Lu and Mo as radiotracers, a new rapid radiochemical isolation procedure for element tungsten has been developed by using radiochemical separation method and γ spectrum measurement technique. With Voltalef powder carried 2% (W/V) BPHA(Benzoylphenylhydroxylamine)-C 5 H 11 OH (iso-amyl-alcohol) organic solution, radioactive W was adsorbed on the Voltalef column in the 4 mol/L hydrochloric acid system. Hf, Lu and Mo fractions passed through the Voltalef column rapidly and partial Ta activities retained on the Voltalef column, respectively. Following this, W fraction was eluted completely with 1%Na 3 C 6 H 5 O 7 (sodium citrate)-5%(W/V) NH 4 OH solution and no Hf, Lu, Ta and Mo activities passed through the Voltalef extraction chromatographic column. The procedure was simultaneously used to isolate W from Er target bombarded with a low energy 12 C beams. By means of this separation system, it is one of the possible way to develop an isolation procedure of Sg, supposing the chemical property of Sg is similar to that of tungsten. W, Ta, Hf Lu and Mo tracers Voltalef-BPHA-C 5 H 11 OH Separation of Sg Extraction chromatography References Schädel M. Radiochim Acta , 1995 , 70/71 : 207 Radiochim Acta Gregorich K E. The Transactinide Elements , Proceedings of Welcb Foundation 41st Conference on Chemical Research , Houston : 1997 , 95 The Transactinide Elements Kratz J V. The Transactinide Elements , Proceedings Welch Foundation 41st Conference on Chemical Research , Houston : 1997 , 65 The Transactinide Elements Pershina V G , Fricke B. GSI-Preprint-96-26 GSI-Preprint-96-26 Schumann D , Fischer S , Andrassy M et al . Radiochim Acta , 1996 , 72 : 137 Radiochim Acta Schumann D , Andrassy M , Nitsche H et al . Radiochim Acta , 1998 , 80 : 1 Radiochim Acta Szeglowski Z , Bruchertseifer H , Brudanin V B et al . J Radioanal Nucl Chem Letters , 1994 , 186 : 353 J Radioanal Nucl Chem Letters Wierczinski B , Alstad J , Eberhardt K et al . Radiochim Acta , 1995 , 69 : 77 Radiochim Acta Schädel M , Brüchle W , Gäger E et al . Radiochim Acta , 1989 , 48 : 171 Radiochim Acta Schädel M , Brüchle W , Schausten B et al . Radiochim Acta , 1997 , 77 : 149 Radiochim Acta Paulus W , Günther R , Brüchle W et al . GSI Scientific Report , 1998 , 13 GSI Scientific Report Stary J , Smizanska J. Anal Chim Acta , 1963 , 29 : 545 Anal Chim Acta Hogfled E. Stability constants of metal ion complexes, Part A: Inorganic Ligands, IUPAC chemical data series , No21 , Oxford : Perhamon Press , 1982 Stability constants of metal ion complexes, Part A: Inorganic Ligands, IUPAC chemical data series Vita C A , Levier W A , Litteral E. Anal Chim Acta , 1968 , 42 : 87 Anal Chim Acta Shendrikar A D. Talanta , 1969 , 16 : 51 Talanta Yi Z M , Zhu Z F , Liang S Q. Acta Chimica Sinica , 1963 , 29 : 249 Acta Chimica Sinica Wang B W , Anal Chem , 1973 , 3 : 64 Anal Chem O615.4 + 1, O614.61 + 3, O652.62 Research funded by GSI, Germany 2000-01-26 2001-05-01 2021-02-05 2001 Nuclear Science and Techniques 2 12