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Pemisahan Thorium dari Uranium pada Monasit dengan Metode Pengendapan

Trinopiawan, Kurnia and Sumiarti, Sumiarti (2012) Pemisahan Thorium dari Uranium pada Monasit dengan Metode Pengendapan. EKSPLORIUM, 33 (1). pp. 55-62. ISSN e-ISSN 2503-426x p-ISSN 0854-1418

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Abstract

Previous researches have obtained the monazite processing stages and resulting RE(OH)3 as a product with ± 62% of recovery, and the by products obtained in the form of a compound of thorium (Th) and Uranium (U). For further utilization, studies of U and Th separation is needed. This research is aimed to determine the optimal conditions for the separation of Th from U in monazite using the precipitation method with H2SO4 as a reagent. Stages of the process in this research consisted of grinding, decomposition, partial dissolution, total dissolution, and precipitation of Th with H2SO4. Feed solution used for precipitation is obtained from total dissolution stage with 2 different reagents are H2SO4 and HCl. Parameters of the research include the precipitating reagent (H2SO4) consumption and precipitation time. Optimal recovery results in the precipitation of sulfate feed solution are Th = 96.99% and U = 18.26% with 20 ml of H2SO4 consumption and 30 minutes of precipitation time. Optimal recovery results in the precipitation of chloride feed solution are 98.05% andU 25.03% with 20 ml of H2SO4 consumption and 30 minutes of precipitation time

Item Type: Article
Uncontrolled Keywords: separation, precipitation, Th, H2SO4, monazite, Bangka
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Galian Nuklir > Teknik Pengolahan Bahan Galian Nuklir
Divisions: Pusat Teknologi Bahan Galian Nuklir
Depositing User: USER PTBGN BATAN
Date Deposited: 04 May 2018 05:24
Last Modified: 04 May 2018 05:24
URI: http://repo-nkm.batan.go.id/id/eprint/871

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