Immobilization of alkali, alkaline-earth and rare-earth elements by crystalline zirconium phosphate HZr<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>
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- NAKAYAMA Susumu
- Department of Applied Chemistry and Biotechnology, Niihama National College of Technology
Bibliographic Information
- Other Title
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- Immobilization of alkali, alkaline-earth and rare-earth elements by crystalline zirconium phosphate HZr₂(PO₄)₃
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Abstract
The immobilization of alkali metal elements (MI = Li, Na, K, Rb, Cs), alkaline-earth metal elements (MII = Mg, Ca, Sr, Ba) and rare-earth metal elements (MIII = La, Nd, Sm, Gd, Dy, Ho, Er, Yb) in crystalline zirconium phosphate HZr2(PO4)3 was performed by mixing each of the nitrate salts [MINO3, MII(NO3)2 and MIII(NO3)3] with the HZr2(PO4)3 powders followed by a thermal treatment at 700°C for 5 h. The leaching test of these immobilized products, MIZr2(PO4)3, MIIZr4(PO4)6 and MIIIZr6(PO4)9, were carried out at 160°C for 24 h in 1 mol·dm−3-HCl using an autoclave. The leaching rate of MI, MII and MIII showed a tendency to decrease with an increase in the ionic radius of MI, MII and MIII, respectively, regardless of the valence of the immobilized metal elements.
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 120 (1404), 334-337, 2012
The Ceramic Society of Japan
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Details 詳細情報について
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- CRID
- 1390001205287022336
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- NII Article ID
- 130004480088
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- NII Book ID
- AA12229489
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- ISSN
- 13486535
- 18820743
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- NDL BIB ID
- 023848269
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed