Characterisation and dissolution studies on the uranium mineral betafite

McMaster, S, Ram, R, Charalambous, F, Tardio, J and Bhargava, S 2012, 'Characterisation and dissolution studies on the uranium mineral betafite', in C. Davies and D. Patterson (ed.) Proceedings of Chemeca 2012: Quality of Life Through Chemical Engineering, Wellington, New Zealand, 23-26 September 2012, pp. 612-622.


Document type: Conference Paper
Collection: Conference Papers

Title Characterisation and dissolution studies on the uranium mineral betafite
Author(s) McMaster, S
Ram, R
Charalambous, F
Tardio, J
Bhargava, S
Year 2012
Conference name Chemeca 2012: Quality of Life Through Chemical Engineering
Conference location Wellington, New Zealand
Conference dates 23-26 September 2012
Proceedings title Proceedings of Chemeca 2012: Quality of Life Through Chemical Engineering
Editor(s) C. Davies and D. Patterson
Publisher Engineers Australia
Place of publication Australia
Start page 612
End page 622
Total pages 11
Abstract The uranium mineral betafite, which is found in various uranium ore bodies around the world, could be an important future source of uranium for the production of nuclear fuel. Very few published studies on either characterisation or dissolution have however been conducted on this mineral, which is found in nature with varying composition, and commonly described using the chemical formula (Ca,U)2(Ti,Nb,Ta)2O6OH. In this study characterisation and dissolution tests were conducted on a concentrated betafite sample that had been collected from the Ambatofotsky region in Madagascar. The characteristics of this sample were investigated using the following techniques: X-ray diffraction analysis (including in-situ high temperature XRD), Scanning Electron Microscopy - Energy Dispersive X-ray analysis and elemental composition analysis (Inductively Coupled Plasma-Mass Spectrometry). The results of the aforementioned analyses showed that the sample as received consisted of mostly amorphous betafite. HT-XRD results showed the annealed sample also contained another uranium mineral, studtite as well as niobium rich rutile and various other titanium oxides. Dissolution studies on the concentrated betafite sample involved investigating the influence of multiple parameters on the rate of uranium dissolution. Parameters that were investigated included; acid concentration, temperature, and total iron concentration.
Subjects Chemical Characterisation of Materials
Copyright notice © 2012 Engineers Australia
ISBN 9781922107596
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