Study of the Changes in Composition of Ammonium Diuranate with Progress of Precipitation, and Study of the Properties of Ammonium Diuranate and its Subsequent Products Produced from both Uranyl Nitrate and Uranyl Fluoride Solutions

Subhankar Manna; Raj Kumar; Santosh K. Satpati; Saswati B. Roy; Jyeshtharaj B. Joshi

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자료유형: 학술저널

저자정보: Subhankar Manna Raj Kumar Santosh K. Satpati Saswati B. Roy Jyeshtharaj B. Joshi

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제49권 제3호

발행연도: 2017.1

수록면: 541 - 548 (8page)

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Uranium metal used for fabrication of fuel for research reactors in India is generally produced by magnesio-thermic reduction of UF4. Performance of magnesio-thermic reaction and recovery and quality of uranium largely depends on properties of UF4. As ammonium diuranate (ADU) is first product in powder form in the process flow-sheet, properties of UF4 depend on properties of ADU. ADU is generally produced from uranyl nitrate solution (UNS) for natural uranium metal production and from uranyl fluoride solution (UFS) for low enriched uranium metal production. In present paper, ADU has been produced via both the routes. Variation of uranium recovery and crystal structure and composition of ADU with progress in precipitation reaction has been studied with special attention on first appearance of the precipitate Further, ADU produced by two routes have been calcined to UO3, then reduced to UO2 and hydroflorinated to UF4. Effect of two different process routes of ADU precipitation on the characteristics of ADU, UO3, UO2 and UF4 were studied here.

#Ammonium diuranate #Crystal structure #UF4 #UO2 #UO3

참고문헌 (30)

참고문헌 신청

/ 1997 / Cal

/ 1997 / Calculated from ICSD (Inorganic Crystal Stucture Database)Using POWD-12++ 85 : 135 ~

A. Deptula / 1962 / A study of composition of ammonium uranates / Nukleonika 7 : 265 ~ 275

A. M. Deane / 1961 / The infra-red spectra and structures of some hydrated uranium trioxides and ammonium diuranate / J. Inorg. Nucl. Chem 21 : 238 ~ 252

A.M. Saliba-Silvat / / RadioisotopesdApplications in Physical Sciences / InTech

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