Optimasi Kinetika Pelindian Emas Alternatif Menggunakan Ligan (NH2CH2COOH) Pada Bijih Emas Refraktori

Muhamad Muflich Dhiya'ulhaq

Abstract


Industri pertambangan emas secara global menghadapi tantangan lingkungan akibat penggunaan ekstensif sianida, khususnya pada ekstraksi bijih emas refraktori. Penelitian ini bertujuan untuk mengevaluasi ligan glisin (NH2CH2COOH) sebagai alternatif ramah lingkungan (biodegradable dan nontoksik) melalui optimasi parameter kinetik pelindian. Pendekatan studi literatur digunakan dengan menganalisis 26 artikel ilmiah relevan dari pangkalan data terkemuka. Hasil sintesis menunjukkan bahwa laju disolusi glisin murni secara inheren lambat pada suhu ruang. Namun, penambahan agen pengoksidasi kuat (seperti kalium permanganat) dan peningkatan suhu operasi hingga 60°C mampu mendobrak hambatan energi aktivasi secara signifikan. Secara khusus, integrasi sistem hibrida tiosulfat-glisin bersinergi terbukti menghasilkan perolehan emas mencapai 93,7% dalam 12 jam pada 40°C. Kesimpulannya, efektivitas sistem glisin dapat dikatalisis secara absolut melalui manajemen suhu dan agen pengoksidasi, menjadikannya alternatif ekstraksi yang berkelanjutan, efisien, dan ramah ekosistem untuk transisi metalurgi hijau.

Keywords: Glycine, Gold, Leaching, Refractory


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References


Altinkaya, P., Wang, Z., Korolev, I., Hamuyuni, J., Haapalainen, M., Kolehmainen, E., Yliniemi, K., & Lundström, M. (2020). Leaching and recovery of gold from ore in cyanide-free glycine media. Minerals Engineering, 158. https://doi.org/10.1016/j.mineng.2020.106610

Azizitorghabeh, A., Mahandra, H., Ramsay, J., & Ghahreman, A. (2021). Gold Leaching from an Oxide Ore Using Thiocyanate as a Lixiviant: Process Optimization and Kinetics. ACS Omega, 6(27), 17183–17193. https://doi.org/10.1021/acsomega.1c00525

Hou, L., López Valdivieso, A., Chen, P., Zhang, G., Zhang, Q., Chen, Y., Song, S., & Jia, F. (2023). An electrochemical study of the dissolution behavior of gold in a novel glycine-thiosulfate system. Minerals Engineering, 202. https://doi.org/10.1016/j.mineng.2023.108273

Johnson, C. A. (2015). The fate of cyanide in leach wastes at gold mines: An environmental perspective. In Applied Geochemistry (Vol. 57, pp. 194–205). Elsevier Ltd. https://doi.org/10.1016/j.apgeochem.2014.05.023

Li, H., Li, Z., Jin, J., Han, Y., & Li, Y. (2022). Pore Evolution in Refractory Gold Ore Formed by Oxidation Roasting and the Effect on the Cyanide Leaching Process. ACS Omega, 7(4), 3618–3625. https://doi.org/10.1021/acsomega.1c06248

Li, Q., Zhang, Y., Liu, X., Xu, B., Yang, Y., & Jiang, T. (2017). Improvement of gold leaching from a refractory gold concentrate calcine by separate pretreatment of coarse and fine size fractions. Minerals, 7(5). https://doi.org/10.3390/min7050080

Li, Q., Zhu, Y., Zhang, Y., Liu, X., Qiao, S., Yang, Y., & Jiang, T. (2026). Thiosulfate leaching of gold: An review on novel catalytic systems. Transactions of Nonferrous Metals Society of China, 36(4), 1294–1319. https://doi.org/10.1016/S1003-6326(25)67032-4

Liu, J., Qin, M., Huang, S., Liu, Z., & Zhang, L. (2024). Mineralogical and Geochemical Evidence for the Origin of the DL Uranium Deposit in the Songliao Basin, Northeast China. Minerals, 14(2). https://doi.org/10.3390/min14020149

Marsden, John., & House, C. Iain. (2006). Chemistry of Gold Extraction (Robert. S. Shoemaker, Ed.; I. House, Tran.; 2nd Edition, Vol. 2). SME.

Mbayo, J. J. K., Simonsen, H., & Ndlovu, S. (2019). Improving the gold leaching process of refractory ores using the Jetleach reactor. Minerals Engineering, 134, 300–308. https://doi.org/10.1016/j.mineng.2019.02.003

Mehrotra, R., & Carbonnier, G. (2021). Abnormal pricing in international commodity trade: Empirical evidence from Switzerland. Resources Policy, 74. https://doi.org/10.1016/j.resourpol.2021.102352

Mutimutema, P., Akdogan, G., & Tadie, M. (2022). Evaluation of pre-treatment methods for gold recovery from refractory calcine tailings. The Journal of the Southern African Institute of Mining and Metallurgy, 122. https://doi.org/10.17159/2411

Norgate, T., & Haque, N. (2025). Using life cycle assessment to evaluate some environmental impacts of gold production. Journal of Cleaner Production, 29–30, 53–63. https://doi.org/10.1016/j.jclepro.2012.01.042

Oraby, E. A., & Eksteen, J. J. (2014). The selective leaching of copper from a gold-copper concentrate in glycine solutions. Hydrometallurgy, 150, 14–19. https://doi.org/10.1016/j.hydromet.2014.09.005

Oraby, E. A., Eksteen, J. J., & O’Connor, G. M. (2020). Gold leaching from oxide ores in alkaline glycine solutions in the presence of permanganate. Hydrometallurgy, 198. https://doi.org/10.1016/j.hydromet.2020.105527

Perea, C. G., & Restrepo, O. J. (2018). Use of amino acids for gold dissolution. Hydrometallurgy, 177, 79–85. https://doi.org/10.1016/j.hydromet.2018.03.002

Redrovan, A. S., Torre, E. de la, & Aragón-Tobar, C. F. (2025). Gold Leaching from an Auriferous Ore by Alkaline Thiosulfate–Glycine–Copper Solution. Metals, 15(2). https://doi.org/10.3390/met15020204

Rezaee, M., Saneie, R., Mohammadzadeh, A., Abdollahi, H., Kordloo, M., Rezaee, A., & Vahidi, E. (2023). Eco-friendly recovery of base and precious metals from waste printed circuit boards by step-wise glycine leaching: Process optimization, kinetics modeling, and comparative life cycle assessment. Journal of Cleaner Production, 389. https://doi.org/10.1016/j.jclepro.2023.136016

Tapfuma, by A., Akdogan, G., Tadie, M., & Tapfuma, A. (2024). Investigation of glycine leaching for gold extraction from Witwatersrand gold mine tailings with permanganate pre-treatment Correspondence to: Dates: How to cite. The Journal of the Southern African Institute of Mining and Metallurgy, 124(4), 219–230. https://doi.org/10.17159/2411

Wang, S., Wu, J., & Jiao, F. (2025). Pretreatment and Extraction of Gold from Refractory Gold Ore in Acidic Conditions. In Minerals (Vol. 15, Number 4). Multidisciplinary Digital Publishing Institute (MDPI). https://doi.org/10.3390/min15040340

Wijayanto, T., Hakam, D. F., & Kemala, P. N. (2025). Vision for Indonesia’s 2050 power generation: Scenarios of hydrogen integration, nuclear energy prospects, and coal phase-out impact. Sustainable Futures, 9. https://doi.org/10.1016/j.sftr.2025.100438




DOI: http://dx.doi.org/10.30872/jtm.v14i1.27725

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