Inorganic ion-exchangers for the removal of zirconium, hafnium and niobium radioisotopes from aqueous solutions

1989 ◽  
Vol 131 (1) ◽  
pp. 161-169 ◽  
Author(s):  
A. Dyer ◽  
F. H. Kadhim
Keyword(s):  
Aqueous Solutions ◽  
Ion Exchangers ◽  
Inorganic Ion Exchangers ◽  
Inorganic Ion

Instrumental neutron activation analysis of lanthanides and coexisting elements in monazite samples and group separation using synthesized inorganic ion exchangers

2020 ◽  
Vol 108 (11) ◽  
pp. 901-912
Author(s):  
Mohamed A. Ghamry ◽  
Fatma H. El-Sweify ◽  
Alaa El-Din A. Abdel-Fattah ◽  
Shorouk M. Aly ◽  
Mohamed F. El-Shahat
Keyword(s):  
Neutron Activation Analysis ◽  
Instrumental Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Group Separation ◽  
Ion Exchangers ◽  
Inorganic Ion Exchangers ◽  
Inorganic Ion ◽  
Lanthanide Elements ◽  
Instrumental Neutron Activation

AbstractSamples of Egyptian monazite ore obtained from black sand of Abu-Khashaba, Rashied (Rosetta) area on the Mediterranean Sea coast were analyzed for some lanthanides and coexisting elements using instrumental neutron activation analysis (INAA). The analyses were carried out qualitatively and quantitatively for the elements Ce, Nd, Eu, Gd, Tb, Yb and Sc, La as well as the accompanying elements Co, Cr, Fe, Hf, Nb, Zn, Zr in addition to the actinides Th and U; whereas after relatively longer decay time the following lanthanide elements were analyzed: Ce, Nd, Eu, Gd, Tb, Yb and Sc, beside the accompanying elements Co, Cr, Fe, Hf, Nb, Zn, Zr and Th. Two certified reference materials (CRM) were used in this study. For sorption studies, radioactive isotopes 141Ce, 160Tb, 169Yb, 95Zr, 181Hf, and 95Nb were prepared by neutron irradiation to trace the adsorption behaviors of their corresponding elements under certain conditions. Furthermore, radiochemical separation of the analyzed elements in the irradiated monazite samples in sulfuric acid solutions was carried out. Ion exchange technique was applied under static and dynamic conditions and the employed inorganic ion exchangers were locally synthesized and characterized using FT-IR and scanning electron microscopy (SEM) tools. Good group separation of the analyzed lanthanide elements from the accompanying elements was achieved.

Inorganic ion exchangers—IX

1974 ◽  
Vol 36 (10) ◽  
pp. 2377-2383 ◽  
Author(s):  
Sten Ahrland ◽  
Nils-Olof Björk ◽  
Robert Blessing ◽  
Richard Herman
Keyword(s):  
Ion Exchangers ◽  
Inorganic Ion Exchangers ◽  
Inorganic Ion

Amine cobalt(II) hexacyanoferrate(II) compounds as inorganic ion exchangers

1968 ◽  
Vol 40 (7) ◽  
pp. 1135-1136 ◽  
Author(s):  
Richard B. Hahn ◽  
Henry C. Klein
Keyword(s):  
Ion Exchangers ◽  
Inorganic Ion Exchangers ◽  
Inorganic Ion

Structural Basis of Selectivity in Tunnel Type Inorganic Ion Exchangers

1999 ◽  
pp. 168-182 ◽  
Author(s):  
Abraham Clearfield ◽  
Damodara M. Poojary ◽  
Elizabeth A. Behrens ◽  
Roy A. Cahill ◽  
Anatoly I. Bortun ◽  
...  
Keyword(s):  
Structural Basis ◽  
Ion Exchangers ◽  
Inorganic Ion Exchangers ◽  
Inorganic Ion
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