Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.017 seconds
[en] Molyibdenum-99 (T½ = 66.02 h) decays by beta emission to "9"9Tcm (T½ = 6.02 h). The latter nuclide is used in many nuclear medicine applications. The "9"9Mo is produced from irradiated high (HEU) or low (LEU) enriched uranium. In this work a sensitive and selective method for recovering Mo from uranium solution, using a column with titanium dioxide nanoparticles, is developed. The titanium dioxide (TiO_2) nanoparticles were synthesized via sol-gel method using titanium tetra-chloride as starting material and urea as a reacting medium. A 40 ml uranium solution containing 450 g/L uranyl nitrate, 1 M HNO_3, and 4 mg Mo was loaded on a column containing 6 g of TiO_2 sorbent at 75°C. After loading, the column was washed with 1 M HNO_3 and H_2O. Mo was stripped from the column with 0.1 M NaOH at 25°C. The ICP-MS results indicate that 80-95% of the initial mass of Mo was loaded on the column, and 90-94% of this quantity was recovered in the strip fraction. (authors)
Source
Paraschiv, Irina Maria (ed.); Turcu, Ilie (Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (Romania)); Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (Romania). Funding organisation: National Authority for Scientific Research, Bucharest (Romania); 332 p; ISSN 2066-2955; 
; 2016; p. 181-188; NUCLEAR 2016: 9. annual international conference on sustainable development through nuclear research and education; Pitesti (Romania); 18-20 May 2016; Also available from author(s) or Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (RO); 10 refs., 2 tabs.
; 2016; p. 181-188; NUCLEAR 2016: 9. annual international conference on sustainable development through nuclear research and education; Pitesti (Romania); 18-20 May 2016; Also available from author(s) or Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (RO); 10 refs., 2 tabs.