| Autor: |
Handini, Tri, Pusparini, Wahyu Rachmi, Amiliana, Rahmatika Alfia |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 8/3/2022, Vol. 2501 Issue 1, p1-5, 5p |
| Abstrakt: |
The process of eliminating uranium and thorium in the deposition of rare earth carbonates from xenotime alkaline roasting. The purpose of this study is to eliminate U and Th in the deposition of rare earth carbonates from xenotime alkaline roasting. As much as 10 grams of xenotime sand was mixed with the variation of NaOH and (NH4)2CO3 ratio. Then the mixture was roasted at various temperatures. After that, it was leached using HCl solution. The leaching solution was precipitated using MgO and NH4OH. The deposition of the leaching solution was analyzed by XRF Epsilon 4 and XRF Ortec 7010. The parameters studied were pH of precipitation, roasting temperature, and the addition of compounds for the precipitation process. The result of this research is the optimal precipitation conditions using MgO and sodium carbonate. The precipitation efficiency of U and Th from rare earth carbonates respectively was 65.4% and 82%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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