Recovery of uranium from fluoride matrix by solid state reaction routes
Source abstract
Abstract
Abstract A simple method is developed for the separation and recovery of uranium in a CaF2 and MgF2 matrix, employing a solid state reaction route, heating the uranium slag-composition mixture with (NH4)2SO4. Reactions of a synthetic slag-composition mixture with (NH4)2SO4 above 350 °C formed sulfate compounds of uranium, calcium and magnesium. The sulfates of uranium were separated by dissolving in dilute acid. Reactions were monitored by TG-DTA analysis. Products formed at different temperatures were characterised by X-ray powder diffraction. Quantitative analysis of the products was achieved using redox titrimetry. By this method about 95% of the uranium present could be recovered from synthetic mixtures.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Radioactive element chemistry and processing · Nuclear Materials and Properties · Nuclear Physics and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. Cole · Nucl. Instrum. and Meth. · 1968 · 65 · 4510.1016/0029-554X(68)90006-2 ↗
2. R.H. Augustson, T.D. Reilly, Report, LA 5651 M, 1974
3. Cleveland · 1970
4. K. Chandra, M. Singh, H. Singh, A.M. Meghal, K.S. Koppiker, S. Sen, in: Proceedings of the International Symposium on Uranium Technology, BARC, Bombay, vol. II, 1989, p. 777
5. Wilkinson · 1960
6. A.U. Bhanu, K.N. Roy, S. Vaidyanathan, in: Proceedings of Nuclear and Radiochemistry Symposium, NUCAR 97, Calcutta 1997, preprint volume, p. 204
7. Singh Mudher · J. Nucl. Mater. · 1995 · 218 · 16610.1016/0022-3115(94)00650-4 ↗
8. K.D. Singh Mudher, A.K. Chadha, R.R. Khandekar, K. Krishnan, N.C. Jayadevan, in: Proceedings of DAE Symposium Radiochemistry and Radiation Chemistry, Kanpur, 1985, preprint volume, p. 438
9. K.D. Singh Mudher, R.R. Khandekar, K. Krishnan, N.C. Jayadevan, in: DAE Symposium on Radiochemistry and Radiation Chemistry, IGCAR, Kalpakkam, 1989, preprint volume, p. AL-06
10. Davis · Talanta · 1964 · 11 · 120310.1016/0039-9140(64)80171-5 ↗
11. International Centre for Diffraction Data, Newtown Square, PA, USA. PDF no. 37-184 (CaSO4), 24-1378 (UO2SO4), 21-546 (MgSO4), 42-1432 (NH4)2Mg2(SO4)3, 9-167 U(SO4)2 4H2O
12. G.V. Belov, B.G. Trusov, ASTD: Computer aided reference book in Thermodynamical, Thermochemical and Thermophysical Properties of Species, version 2.0, 1983–1995, Moscow
13. K.D. Singh Mudher, A.K. Chadha, K. Krishnan, N.C. Jayadevan, V.V. Deshpande, in: Proceedings of 5th National Symposium on Thermal Analysis, Kharagpur, 1985, p. 3.100
14. Erdey · Talanta · 1964 · 11 · 91310.1016/0039-9140(64)80128-4 ↗
15. Sahoo · Thermochim. Acta · 1979 · 31 · 30310.1016/0040-6031(79)80045-3 ↗