Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 247: Issue 1
Selective separation behavior of silica gel for zirconium in simulated high level radioactive liquid waste
Authors:
Y. Zhang Tianjin University School of Chemical Engineering and Technology Tianjin 300072 P.R. China

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R. Wang Tianjin University School of Chemical Engineering and Technology Tianjin 300072 P.R. China

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C. Lin China Institute of Atomic Energy P.O.Box 275 (26) Beijing 102413, P.R. China

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X. Zhang China Institute of Atomic Energy P.O.Box 275 (26) Beijing 102413, P.R. China

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Pages:
205–208
Online Publication Date:
29 Oct 2004
Publication Date:
17 Jan 2001
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1006716526737
Restricted access

Abstract  

Zirconium in simulated high level radioactive liquid waste (HLLW) was selectively adsorbed and separated by self-made high adsorption activity silica gel. The selective adsorption mechanism was analyzed according to the structure character of self-made silica gel and performance of zirconium in acid simulated HLLW. The results show that the adsorption selectivity of self-made silica gel for zirconium is strong, because zirconium has higher positive charge and zirconium ion hydrolyzes easily. Distribution coefficient of self-made silica gels for zirconium is 53.5 ml/g. There are 6.5 (OH)/nm2 on the surface on self-made silica gels which provide more adsorption activity places, thus self-made silica gels have higher adsorption capacity for zirconium (31.4 mg/g). The elution rate of the adsorption of zirconium on self-made silica gel by 0.2 mol/l H2C2O4 is more than 99%. The solubility of the self-made silica gel in nitric acid is low, the chemical stability of self-made silica gel is very strong.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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