Analisis Perbedaan Kadar Nikel Antara Front Penambangan dan Stockpile Pada PT Rockstone Multi Mining Indonesia
Analysis of the difference in Nickel Grade Between the Mining Front and Stockpile at PT Rockstone Multi Mining Indonesia
DOI:
https://doi.org/10.58227/jesta.v2i2.207Keywords:
Ferronickel, Ni Garde, Stockpile, Zona SaprolitAbstract
PT Rockstone Multi Mining Indonesia Central Sulawesi is one of the companies that manages laterite nickel ore into ferronickel (FeNi) products. This study aims to determine the percentage of nickel content found in the mining front to the stockpile and to find out what percentage of the change in nickel content from the mining front to the stockpile and analyze the factors of the change in the level from the mining front to the stockpile. This study uses the field observation method. In the mining front data , with a total of 17 domes, the average level of Ni Front of reclamation is 1.91 while the average level of Ni stockpile is 1.90. When summing up the average value of the mining front and stockpile levels , a decrease in nickel content of 0.01% was obtained. The factors that cause changes in nickel levels are waterlogging, dredging of the Stockpile floor, the use of used sacks for samples, unclean buckets, unclean dump truck tubs, sampling errors, and preparation errors.References
Anbiyak, N. (2018). Penggunaan Metode Geostatistik Dalam Estimasi Kadar Nikel Pada Cebakan Bijih Nikel Laterit Petea. Prosiding Temu Profesi Tahunan PERHAPI, 1(1), 271–284. https://doi.org/10.36986/ptptp.v0i0.27
Arifin, M. (2016). Karakteristik Endapan Nikel Laterit Pada Blok X Pt. Bintangdelapan Mineral Kecamatan Bahodopi Kabupaten Morowali Provinsi Sulawesi Tengah. Jurnal Geomine, 1(1), 37–45. https://doi.org/10.33536/jg.v1i1.7
Charles R.M, D. C. (2013). Nickel Laterite ore deposits.
Heriawan, M. N., Widodo, L. E., Airlangga, E., & Rustiawan, W. (2009). Analisis Kerapatan Data Eksplorasi Dan Estimasi Pada Endapan Nikel Laterit Di Daerah Halmahera Timur. Jtm, XVI(2), 89–102.
Jagad Sirollahi, M. L., & Nursanto, E. (2021). Perbandingan Unsur Logam Pada Lapisan Limonit dan Saprolit di Front Pertambangan Nikel di Daerah Huko-Huko Kecamatan Pomalaa Kabupaten Kolaka. 2021(November), 295–299.
Juradi, M. I., Bakri, S., & Takur, T. Studi Penurunan Kadar Bijih Nikel pada Blok C PT Jagad Rayatama Konawe Selatan Sulawesi Tenggara. Jurnal GEOSAPTA, 10(2), 1-5.
Kurniadi, Adi. Rosana, Mega Fatimah. Yuningsih Euis Tintin. Luhur, P. H. (2018). Karakteristik Batuan Asal Pembentukan Endapan Nikel Laterit Di Daerah Madang dan Serakan Tengah. Padjadjaran Geoscience Journal, 02(03), 221–234.
LAURENCE ROBB. (20189). Introduction to Ore-Forming Processes. In News.Ge (p. https://news.ge/anakliis-porti-aris-qveynis-momava).
Li, J., Xiong, D., Chen, H., Wang, R., & Liang, Y. (2012). Physicochemical factors affecting leaching of laterite ore in hydrochloric acid. Hydrometallurgy, 129–130, 14–18. https://doi.org/10.1016/j.hydromet.2012.08.001
Lv, X., Bai, C., He, S., & Huang, Q. (2010). Mineral change of Philippine and Indonesia nickel lateritic ore during sintering and mineralogy of their sinter. ISIJ International, 50(3), 380–385. https://doi.org/10.2355/isijinternational.50.380
Masuara, A. H. (2018). Evaluasi Kadar Produksi Nikel Laterit Di Pt. Antam Tbk. Jurnal Dintek, 11(Nomor 2), 33–45.
Permanadewi, S. (2017). Cebakan Nikel Laterit Di Pulau Gag, Kabupaten Raja Ampat, Provinsi Papua Barat. Buletin Sumber Daya Geologi, 12(1), 55–70. https://doi.org/10.47599/bsdg.v12i1.23
Prasetyo, P. (2016). Sumber Daya Mineral Di Indonesia Khususnya Bijih Nikel Laterit Dan Masalah Pengolahannya Sehubungan Dengan UU Minerba 2009. Seminar Nasional Sains Dan Teknologi 2016, 8(November), 1–10.
Sukandarrumidi. (2007). geologi mineral logam ( gadjah mada University, Ed.).
Sundari, W. (2012). Analisis Data Eksplorasi Bijih Nikel Laterit Untuk Estimasi Cadangan dan Perancangan Pit pada PT. Timah Eksplomin di Desa Baliara Kecamatan Kabaena Barat Kabupaten Bombana Provinsi Sulawesi Tenggara. Prosiding Seminar Nasional Aplikasi Sains & Teknologi (SNAST) Periode III, November, 252–260.
Tonggiroh, A., Suharto, & Muhardi, M. (2012). Analisis Pelapukan Serpentin dan Endapan Nikel Laterit Daerah Pallanggas Kabupaten Konawe Selatan Sulawesi Tenggara. Prosiding Teknik Geologi 2012, 6(1), 978–979.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Journal of Engineering Science and Technology Applications
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
