Evaluation of Uranium Co-precipitations with Sodium Aluminosilicate Phases

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This paper describes batch laboratory experiments performed to evaluate uranium incorporation into aluminosilicate structures during synthesis. This research was conducted in response to plant problems related to the accumulation of uranium with aluminosilicates in low-level radioactive waste evaporators. We have found that conditions which favor precipitation of aluminosilicates also foster uranium solid precipitation, so it is difficult to attribute problems with uranium accumulation to say just the formation of the aluminosilicates. Infrared spectra shows that sodium uranates, uranium silicates and other uranium solids are formed during the synthesis of sodium aluminosilicates structures in the presence of uranium. Both amorphous and ... continued below

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Oji, L.N. June 24, 2003.

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This paper describes batch laboratory experiments performed to evaluate uranium incorporation into aluminosilicate structures during synthesis. This research was conducted in response to plant problems related to the accumulation of uranium with aluminosilicates in low-level radioactive waste evaporators. We have found that conditions which favor precipitation of aluminosilicates also foster uranium solid precipitation, so it is difficult to attribute problems with uranium accumulation to say just the formation of the aluminosilicates. Infrared spectra shows that sodium uranates, uranium silicates and other uranium solids are formed during the synthesis of sodium aluminosilicates structures in the presence of uranium. Both amorphous and sodalite aluminosilcate phases, unlike zeolite A phase, show appreciable affinity for uranium incorporation during their formation in the presence of uranium.

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  • Journal Name: American Nuclear Society

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  • Report No.: WSRC-MS-2003-00361
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 812071
  • Archival Resource Key: ark:/67531/metadc737138

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  • June 24, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 6:01 p.m.

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Oji, L.N. Evaluation of Uranium Co-precipitations with Sodium Aluminosilicate Phases, article, June 24, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc737138/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.