PRESIPITASI BESI DARI LARUTAN HASIL PELINDIAN BIJIH NIKEL LATERIT
DOI:
https://doi.org/10.30556/jtmb.Vol18.No3.2022.1176Kata Kunci:
pelindian, presipitasi, studi kinetika, besi, bijih nikel lateritAbstrak
Presipitasi besi dari larutan hasil pelindian bijih nikel laterit merupakan tahapan yang harus dilakukan sebelum larutan diolah lebih lanjut. Tujuan penelitian ini adalah untuk mengetahui pengaruh varibel proses terhadap presipitasi besi serta mempelajari kinetika proses presipitasi. Dalam penelitian ini, presipitasi besi dilakukan menggunakan senyawa natrium hidroksida (NaOH). Variabel yang diamati yaitu temperatur (25, 40, 55, 70, dan 85°C) konsentrasi NaOH (10, 20, 30, dan 40% w/v), dan waktu (15, 30, 45, 60, dan 75 menit). Studi kinetika mengacu pada persamaan reaksi homogenous irreversible orde I, orde II dan orde III. Hasil penelitian menunjukkan bahwa peningkatan temperatur, konsentrasi NaOH, dan waktu meningkatkan persentase presipitasi besi. Persentase presipitasi besi tertinggi sebesar 84,868% dicapai pada pada temperatur 85°C, konsentrasi NaOH 40% w/v, dan waktu 75 menit. Studi kinetika menunjukkan bahwa reaksi presipitasi besi dari larutan hasil pelindian mengikuti reaksi irreversible orde III.Referensi
Astuti, W., Hirajima, T., Sasaki, K. dan Okibe, N. (2015) “Kinetics of nickel extraction from Indonesian saprolitic ore by citric acid leaching under atmospheric pressure,” Mining, Metallurgy & Exploration, 32(3), hal. 176–185. doi: 10.1007/BF03402286.
Astuti, W., Hirajima, T., Sasaki, K. dan Okibe, N. (2016) “Comparison of effectiveness of citric acid and other acids in leaching of low-grade Indonesian saprolitic ores,” Minerals Engineering, 85, hal. 1–16. doi: 10.1016/j.mineng.2015.10.001.
Basturkcu, H. dan Acarkan, N. (2017) “Selective nickel-iron separation from atmospheric leach liquor of a lateritic nickel ore using the para-goethite method,” Physicochemical Problems of Mineral Processing, 53(1), hal. 212−226. doi: 10.5277/ppmp170118.
Chang, Y., Zhai, X., Li, B. dan Fu, Y. (2010) “Removal of iron from acidic leach liquor of lateritic nickel ore by goethite precipitate,” Hydrometallurgy, 101(1–2), hal. 84–87. doi: 10.1016/j.hydromet.2009.11.014.
de Fátima da Silva, M., de Sousa Oliveira, M. R., dos Santos, I. D., Radino-Rouse, P. dan Mansur, M. B. (2022) “Iron precipitation strategies from nickel laterite ore sulfuric acid leach liquor,” Mineral Processing and Extractive Metallurgy Review, 43(1), hal. 28–39. doi: 10.1080/08827508.2020.1809392.
Levenspiel, O. (1998) Chemical reaction engineering. 3rd ed. New York: John Wiley & Sons.
Li, G., Zhou, Q., Zhu, Z., Luo, J., Rao, M., Peng, Z. dan Jiang, T. (2018) “Selective leaching of nickel and cobalt from limonitic laterite using phosphoric acid: An alternative for value-added processing of laterite,” Journal of Cleaner Production, 189, hal. 620–626. doi: 10.1016/j.jclepro.2018.04.083.
Li, J., Yang, Y., Wen, Y., Liu, W., Chu, Y., Wang, R. dan Xu, Z. (2020) “Leaching kinetics and mechanism of laterite with NH4Cl-HCl solution,” Minerals, 10(9), hal. 754. doi: 10.3390/min10090754.
Liu, Y. dan Lee, M. (2015) “Separation of Co and Ni from a chloride leach solutions of laterite ore by solvent extraction with extractant mixtures,” Journal of Industrial and Engineering Chemistry, 28, hal. 322–327. doi: 10.1016/j.jiec.2015.03.010.
Ma, B., Yang, W., Xing, P., Wang, C., Chen, Y. dan Lv, D. (2017) “Pilot-scale plant study on solid-state metalized reduction–magnetic separation for magnesium-rich nickel oxide ores,” International Journal of Mineral Processing, 169, hal. 99–105. doi: 10.1016/j.minpro.2017.11.002.
McDonald, R. G. dan Whittington, B. I. (2008) “Atmospheric acid leaching of nickel laterites review,” Hydrometallurgy, 91(1–4), hal. 35–55. doi: 10.1016/j.hydromet.2007.11.009.
Miettinen, V., Mäkinen, J., Kolehmainen, E., Kravtsov, T. dan Rintala, L. (2019) “Iron control in atmospheric acid laterite leaching,” Minerals, 9(7), hal. 404. doi: 10.3390/min9070404.
Mubarok, M. Z. dan Hanif, L. I. (2016) “Cobalt and nickel separation in nitric acid solution by solvent extraction using Cyanex 272 and Versatic 10,” Procedia Chemistry, 19, hal. 743–750. doi: 10.1016/j.proche.2016.03.079.
Mystrioti, C., Papassiopi, N., Xenidis, A. dan Komnitsas, K. (2018) “Counter-current leaching of low-grade laterites with hydrochloric acid and proposed purification options of pregnant solution,” Minerals, 8(12), hal. 599. doi: 10.3390/min8120599.
Permana, D., Kumalasari, R., Wahab, W. dan Musnajam, M. (2020) “Pelindian bijih nikel laterit kadar rendah menggunakan metode atmospheric acid leaching dalam media asam klorida (HCl),” RISET Geologi dan Pertambangan, 30(2), hal. 203–214. doi: 10.14203/risetgeotam2020.v30.1097.
Safitri, N., Mubarok, M. Z., Winarko, R. dan Tanlega, Z. (2018) “Recovery of nickel and cobalt as MHP from limonitic ore leaching solution: Kinetics analysis and precipitate characterization,” in AIP Conference Proceedings 1964. AIP Conference Proceedings, hal. 020030. doi: 10.1063/1.5038312.
Sudibyo, S., Junaedi, A., Amin, M., Sumardi, S., Nurjaman, F., Aji, B. B., Supriyatna, Y. I. dan Hermida, L. (2018) “Solvent extraction process for the recovery cobalt and nickel from low-grade laterite using batch recycle system,” Widyariset, 4(2), hal. 189–196. doi: 10.14203/widyariset.4.2.2018.189-196.
Thubakgale, C. K., Mbaya, R. K. K. dan Kabongo, K. (2013) “A study of atmospheric acid leaching of a South African nickel laterite,” Minerals Engineering, 54, hal. 79–81. doi: 10.1016/j.mineng.2013.04.006.
Wahab, Deniyatno, Saranga, M. dan Supriyatna, Y. I. (2022) “Kinetics study of leaching ore nickel laterite using hydrochloric acid in atmosphere pressure,” Riset Geologi dan Pertambangan, 32(1), hal. 14–26. doi: 10.14203/risetgeotam2022.v32.1163.
Wang, K., Li, J., McDonald, R. G. dan Browner, R. E. (2018) “Iron, aluminium and chromium co-removal from atmospheric nickel laterite leach solutions,” Minerals Engineering, 116, hal. 35–45. doi: 10.1016/j.mineng.2017.10.019.
Wang, X., Sun, T., Chen, C. dan Hu, T. (2017) “Current studies of treating processes for nickel laterite ores,” in Proceedings of the 2nd International Conference on Mechatronics Engineering and Information Technology (ICMEIT 2017). Paris, France: Atlantis Press, hal. 139–152. doi: 10.2991/icmeit-17.2017.27.
Whittington, B. I. dan Muir, D. (2000) “Pressure acid leaching of nickel laterites: A review,” Mineral Processing and Extractive Metallurgy Review, 21(6), hal. 527–599. doi: 10.1080/08827500008914177.
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