TY - GEN
T1 - Selective sulfurization and magnetic separation of uranium and rare-earth oxides mixture
AU - Sato, Nobuaki
AU - Sato, Soichi
PY - 2005/12/1
Y1 - 2005/12/1
N2 - For the recovery of uranium from spent nuclear fuel, selective sulfurization of uranium (UO2) and rare-earth oxides R 2O3 (R=Nd, Eu) using sulfurizing reagents, such as H 2S and CS2 was examines followed by the magnetic separation of sulfurized compounds of rare-earths. The R2O 3 for Nd and Eu were selectively sulfurized by CS2 at 500°C forming Nd2S3 and EuS, respectively, while uranium remains as UO2. Effects of sulfurizing temperature, time and agents were also investigated. After dispersing the mixture of UO2, EuS and Nd2S3 powders into deionized water, uranium was separated from the rare-earths by passing this solvent through magnetic filter with the application of 0.5T magnetic field. Effect of the number of filtration was also discussed.
AB - For the recovery of uranium from spent nuclear fuel, selective sulfurization of uranium (UO2) and rare-earth oxides R 2O3 (R=Nd, Eu) using sulfurizing reagents, such as H 2S and CS2 was examines followed by the magnetic separation of sulfurized compounds of rare-earths. The R2O 3 for Nd and Eu were selectively sulfurized by CS2 at 500°C forming Nd2S3 and EuS, respectively, while uranium remains as UO2. Effects of sulfurizing temperature, time and agents were also investigated. After dispersing the mixture of UO2, EuS and Nd2S3 powders into deionized water, uranium was separated from the rare-earths by passing this solvent through magnetic filter with the application of 0.5T magnetic field. Effect of the number of filtration was also discussed.
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M3 - Conference contribution
AN - SCOPUS:32044468071
SN - 8495520060
T3 - REWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology
SP - 2683
EP - 2688
BT - REWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology - Proceedings
A2 - Gaballah, I.
A2 - Mishra, B.
A2 - Solozabal, R.
A2 - Tanaka, M.
T2 - REWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology
Y2 - 26 September 2004 through 29 September 2004
ER -