Studi Pemisahan Thorium dari Besi dan Logam Tanah Jarang dalam Larutan Asam Nitrat dengan Ekstraksi Pelarut Menggunakan Ekstraktan Trioctylphosphine Oxide

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Published: Nov 30, 2017
DOI: https://doi.org/10.17146/eksplorium.2017.38.2.3924
Keywords:
ekstraksi pelarut, thorium, besi, logam tanah jarang, trioctylphospine oxide

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Briliant Briliant
Program Studi Teknik Metalurgi, ITB
Mohammad Zaki Mubarok
Program Studi Teknik Metalurgi, ITB
Kurnia Trinopiawan
Pusat Teknologi Bahan Galian Nuklir–BATAN
Riesna Prassanti
Pusat Teknologi Bahan Galian Nuklir–BATAN

Abstract

A series of solvent extraction experiment to separate thorium(Th) from iron (Fe) and rare earth metals (REE) using trioctylphosphine oxide (TOPO) conducted with variations of nitric acid concentration, extraction time, ratio between exctractan and diluent (g/mL), and ratio between organic solution and aqueous solution volumes (O/A), and variation of nictric acid concentration in stripping process. Thorium, iron and rare earth metals early concentration in solution feed were measured by using Inductively Coupling Plasma (ICP), Atomic Absorption Spectroscopy (AAS), dan Ultraviolet Visible Spectroscopy (UV-VIS Spectro) respectively. The nitric acid concentration was varied at 1M, 2M, 3M, 4M, and 5M. The extraction time was varied at 2, 5, 10, 15, and 20 minutes, meanwhile the ratio between extractan and diluent (g/mL) was varied at 2:100, 3:100, 4:100, 5:100, and 6:100 with O/A ratio at 1:3, 1:2, 1:1, 2:1, and 3:1. At stripping stage, the nitric acid concentration was varied at 0.1M; 0.2M; 0.3M; 0.4M; and 0.5M. The result of the experiments show that the best condition was obtained on 3M nitric acid concentration, 10 minutes extraction time, 5:100 (g/mL) extractan and diluent ratio, and 1:1 O/A ratio, that resulted in 97.26% Th extraction, 7.97% Fe extraction, and 62.15% rare earth metals extraction with βTh-Fe and βTh-REE value 273.62 and 14.43 respectively. On the stripping experiment, the highest Th stripping percentage obtained as much as 51.37% at 0.3M nitric acid concentration with Fe and REE stripping percentage up to 2.72% and 2.55% respectively. 

 

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How to Cite
Briliant Briliant, Mubarok, M. Z., Trinopiawan, K., & Prassanti, R. (2017). Studi Pemisahan Thorium dari Besi dan Logam Tanah Jarang dalam Larutan Asam Nitrat dengan Ekstraksi Pelarut Menggunakan Ekstraktan Trioctylphosphine Oxide. EKSPLORIUM, 38(2), 133–146. https://doi.org/10.17146/eksplorium.2017.38.2.3924
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Vol. 38 No. 2 (2017): NOVEMBER 2017
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References

[1] “Thorium” [Daring]. Laman: http://www.world-nuclear.org/information-library/current-and-future-generation/thorium.aspx. [Diakses: 28 April 2017].

[2] Dewan Energi Nasional, Outlook Energi Indonesia 2016, 2016.

[3] H. Tulsidas., Nuclear Fuel Cycle and Materials Section, International Atomic Energy Agency, Thorium reserves in the world.

[4] BATAN, Menguji Kesiapan Thorium sebagai Sumber Energi Alternatif Pembangkit Listrik, 2017.

[5] G. M. Ritcey, Solvent Exctraction Principles and Applications to Process Metallurgy, Vol 1, 2nd Edition, G.M. Ritcey and Associates Incorporated, pp. 1-225, 2006.

[6] M. E. Nasab, Solvent extraction separation of uranium (VI) and thorium (IV) with neutral organophosphorus and amine ligands, In Fuel, Volume 116, 2014, Pages 595-600, ISSN 0016-2361, https://doi.org/10.1016/j.fuel.2013.08.043.

[7] S. Y. Afifi, E. M. El Sheikh, M. A. S. Elsayed, and M. M. Mustafa, “Extraction and Determination of Thorium and its Application on Geologic Samples using Trioctylphosphine Oxide,” Arab Journal of Nuclear Sciences and Application, vol. 45(3), pp. 35–51, 2012.

[8] M. V. Purwani dan Prayitno, “Pemisahan Th dan Ce dari konsentrat serium nitrat hasil olah monasit dengan cara ekstraksi bertingkat”, Jurnal Teknologi Bahan Nuklir, Vol. 10, No. 1 (2014): Januari 2014.

[9] A. Alin, M Miloud, A. E. Hossadi, and M Khaliquzzaman, “Solvent Extraction of Thorium from Mixed Organic-Aqueous Nitric Acid Media by Try-N-Octyloxinephosphine Oxide”,Journal of Radioanalytical and Nuclear Chemistry, vol. 116 (2), 1987.

[10] F Xie, T. A. Zhang, D Dreisinger, F Doyle, “A critical review on solvent extraction of rare earths from aqueous solutions”, In Minerals Engineering, Volume 56, 2014, Pages 10-28, ISSN 0892-6875, https://doi.org/10.1016/j.mineng.2013.10.021.

[11] M. V. Purwani dan M. Setyadji, “Pengaruh Tri-n-Oktil Posfin Oksida dan Tingkat Ekstraksi pada Pemurnian Konsentrat Thorium,” Eksplorium, vol. 36, no. 2, pp.109–124, 2015.