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Title: Actinide-Aluminate Speciation in Alkaline Radioactive Waste

Abstract

Investigation of behavior of actinides in alkaline media containing AL(III) showed that no aluminate complexes of actinides in oxidation states (IIII-VIII) were formed in alkaline solutions. At alkaline precipitation IPH (10-14) of actinides in presence of AL(III) formation of aluminate compounds is not observed. However, in precipitates contained actinides (IIV)<(VI), and to a lesser degree actinides (III), some interference of components takes place that is reflected in change of solid phase properties in comparison with pure components or their mechanical mixture. The interference decreases with rise of precipitation PH and at PH 14 is exhibited very feebly. In the case of NP(VII) the individual compound with AL(III) is obtained, however it is not aluminate of neptunium(VII), but neptunate of aluminium(III) similar to neptunates of other metals obtained earlier.

Authors:
;
Publication Date:
Research Org.:
Institute of Physical Chemistry/Russian Academy of Sciences (RU)
Sponsoring Org.:
(US)
OSTI Identifier:
791358
Report Number(s):
DOE/ER14940
66995; TRN: US0200654
DOE Contract Number:  
FG07-98ER14940
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 Dec 2001
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ACTINIDES; ALUMINATES; PRECIPITATION; RADIOACTIVE WASTES; VALENCE; PH VALUE; NEPTUNIUM; ACTINIDE-ALUMINATE; ALKALINE; RADIOACTIVE WASTE; OXIDATION; IONS; HYDROLYSIS; HYDROXOCOMPLEXES; NEPTUNATE; ALUMINIUM

Citation Formats

Clark, David L, and Fedosseev, Alexander M. Actinide-Aluminate Speciation in Alkaline Radioactive Waste. United States: N. p., 2001. Web. doi:10.2172/791358.
Clark, David L, & Fedosseev, Alexander M. Actinide-Aluminate Speciation in Alkaline Radioactive Waste. United States. https://doi.org/10.2172/791358
Clark, David L, and Fedosseev, Alexander M. 2001. "Actinide-Aluminate Speciation in Alkaline Radioactive Waste". United States. https://doi.org/10.2172/791358. https://www.osti.gov/servlets/purl/791358.
@article{osti_791358,
title = {Actinide-Aluminate Speciation in Alkaline Radioactive Waste},
author = {Clark, David L and Fedosseev, Alexander M},
abstractNote = {Investigation of behavior of actinides in alkaline media containing AL(III) showed that no aluminate complexes of actinides in oxidation states (IIII-VIII) were formed in alkaline solutions. At alkaline precipitation IPH (10-14) of actinides in presence of AL(III) formation of aluminate compounds is not observed. However, in precipitates contained actinides (IIV)<(VI), and to a lesser degree actinides (III), some interference of components takes place that is reflected in change of solid phase properties in comparison with pure components or their mechanical mixture. The interference decreases with rise of precipitation PH and at PH 14 is exhibited very feebly. In the case of NP(VII) the individual compound with AL(III) is obtained, however it is not aluminate of neptunium(VII), but neptunate of aluminium(III) similar to neptunates of other metals obtained earlier.},
doi = {10.2172/791358},
url = {https://www.osti.gov/biblio/791358}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {12}
}