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Effect of ammonium nitrate on precipitation of Ammonium Di-Uranate (ADU) and its characteristics

Authors :
Shovit Bhattacharya
Shrishma Paik
Saswati B. Roy
S. Biswas
Source :
Journal of Nuclear Materials. 440:34-38
Publication Year :
2013
Publisher :
Elsevier BV, 2013.

Abstract

Effect of ammonium nitrate on precipitation of Ammonium Di-Uranate (ADU) from nitric acid medium via gaseous ammonia route had been investigated. Studies on effect of ammonium nitrate on precipitation time, particle size, shape, surface morphology, flowability, oxygen/uranium (O/U) ratio and tap density of calcined ADU were carried out at various ammonium nitrate concentrations. It was observed that, the presence of excess ammonium nitrate influences the precipitation time, particle size distribution and surface morphology of the ADU. ADU and uranium oxide were characterized with Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD). Presence of ammonium nitrate during precipitation leads to the formation of bigger, porous and uniform particles as compared to the ADU prepared without ammonium nitrate additions.

Details

ISSN :
00223115
Volume :
440
Database :
OpenAIRE
Journal :
Journal of Nuclear Materials
Accession number :
edsair.doi...........22e42adef465ea9018f9124ab52d07a5
Full Text :
https://doi.org/10.1016/j.jnucmat.2013.04.011