Pelindian Natrium Zirkonat Menggunakan Asam Klorida Secara Catu

Sajima Sajima

doi:10.55981/eksplorium.2018.4369

Pelindian Natrium Zirkonat Menggunakan Asam Klorida Secara Catu

Sajima Sajima

DOI: http://dx.doi.org/10.55981/eksplorium.2018.4369

Abstract

Penelitian tentang teknologi pengolahan zircon terus dilakukan untuk mengikuti kebutuhan industri pasar. Pengolahan natrium zirkonat dengan pelindian menggunakan asam klorida sebagai pelarut telah dilkukan. Penelitian ini bertujuan mempelajari pengaruh ukuran butir, temperatur, dan kecepatan pengadukan terhadap zirkon terambil. Penelitian dilakukan dengan memasukkan pelarut (asam klorida 4 N) ke dalam reaktor, kemudian pelarut tersebut dipanaskan sambil diaduk. Umpan dengan ukuran butir tertentu dimasukkan ke dalam reaktor. Kondisi temperatur dan kecepatan pengadukan dijaga tetap. Setelah kondisi operasi tercapai, proses dihentikan kemudian disaring. Hasil penelitian dengan analisis XRF menunjukkan bahwa kondisi proses optimum dicapai pada ukuran butir 90 µm, temperatur 80 ^oC dan kecepatan pengadukan 200 rpm. Pada kondisi tersebut zirkon terambil sebesar 84.50 %.

Research on zircone processing technology has been continued to follow industrial market needed. Treatment of sodium zirconate with leaching process using hydrochloric acid as solvent has been conducted. The aim of the study is to evaluate the effect of grain size, temperature, and speed of stirring on the extracted zircon. The research starting with introduced the solvent (chloride acid 4 N) into the reactor, then heated while stirring. The feed with a certain grain size was introduced into the reactor. The temperature and stirring conditions were kept steady. Once the operating conditions are reached, the process is stopped and then filtered. The results with XRF analysis showed that the optimum process conditions were achieved on 90 μm grain size, the temperature of 80^oC, and stirring speed of 200 rpm. The amount of zircon that taken out were 84.50% on this conditions.

Keywords

pelindian; zirkon; temperatur; pengadukan; butiran

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References

[1] Menteri Eenergi dan Sumberdaya Mineral, “Peraturan Menteri Energi dan Sumber Daya Mineral Nomor 5 Tahun 2017,” 2017.

[2] T. Suseno, “Analisis Biaya Pengolahan Pasir Zirkon (ZrSiO4) Menjadi Pasir Zirkon Berkadar ZrO2 ≥65,5 % dan Micronized Zircon,” J. Teknol. Miner. dan Batubara, vol. 12, no. September, pp. 179–194, 2016.

[3] C. Chai, “Global Zirconium Market to Reach 2.6 Million Metric Tons by 2017,” Ceram. Ind. News, no. May, pp. 1–12, 2012.

[4] R. Liu, T. Xue, J. Song, Y. Wang, T. Qi, J. Qu, and A. Du, “Removal of silicon in acid leaching and flocculation processes during zirconium oxychloride octahydrate production,” Ceram. Int., vol. 40, no. 6, pp. 8801–8808, 2014.

[5] Sajima and M. Setyadji, “Optimasi proses pelindian pada pengambilan uranium dan thorium dalam pembuatan zircon opacifier ( ZrSiO 4 ),” J. Teknol. Bahan Nukl., vol. 11, no. 2, pp. 113–123, 2015.

[6] R. Septawendar, S. Sutardi, U. Karsono, and N. Sofiyaningsih, “A Low-Cost , Facile Method on Production of Nano Zirconia and Silica from Local Zircon in a Large Scale Using a Sodium Carbonate Sintering Technology,” vol. 52, pp. 92–102, 2016.

[7] A. Gessi and G. Benamati, “Corrosion experiments of steels in flowing Pb at 500 °C and in flowing LBE at 450 °C,” J. Nucl. Mater., vol. 376, no. 3, pp. 269–273, 2008.

[8] Y. Yuhelda, D. Amalia, and E. P. Nugraha, “Processing zirconia through zircon sand smelting with NaOH as a flux,” Indones. Min. J., vol. 19, no. 1, pp. 39–49, 2017.

[9] H. Poernomo, D. Biyantoro, and M. V. Purwani, “Kajian Konsep Teknologi Pengolahan Pasir Zirkon Lokal yang Mengandung Monasit, Senotim dan Ilmenit.,” Eksplorium, vol. 37, no. 2, pp. 73–88, 2016.

[10] Sajima and Triyono, “Pelindian Leburan Pasir Zirkon Kalimantan Menggunakan Air Panas Bench Scale,” J. Forum Nukl., vol. 11, no. Mei 2017, pp. 1–6, 2017.

[11] R. J. F. Da Silva, A. J. B. Dutra, and J. C. Afonso, “Alkali fusion followed by a two-step leaching of a Brazilian zircon concentrate,” Hydrometallurgy, vol. 117–118, pp. 93–100, 2012.

[12] J. Zhang, L. Wang, and D. Jiang, “Decomposition process of zircon sand concentrate with CaO-NaOH,” Rare Met., vol. 31, no. 4, pp. 410–414, 2012.

[13] M. Rosidi, “Pengadukan dalam Proses Koagulasi-Flokulasi,” Chemistry-Environment, no. Juni 2015, 2015.