Perbandingan Kadar Endapan Nikel Laterit Pada Front Penambangan Dengan Stockpile Pada PT Ceria Nugraha Indotama: Comparison of Laterite Nickel Deposit Levels on the Mining Front with Stockpile at PT Ceria Nugraha Indotama

Muh. Reza Ardhana; Alam Budiman Thamsi; Anshariah Anshariah

doi:10.58227/jesta.v1i2.182

Authors

Muh. Reza Ardhana Universitas Muslim Indonesia
Alam Budiman Thamsi Universitas Muslim Indonesia
Anshariah Anshariah Universitas Muslim Indonesia

DOI:

https://doi.org/10.58227/jesta.v1i2.182

Keywords:

Grade, Nickel Laterite, Front, Stockpile, Grab Sampling

Abstract

PT Ceria Nugraha Indotama is a company engaged in mining laterite nickel ore in Wolo sub-district, Kolaka district, Southeast Sulawesi province. In lateritic nickel ore mining activities, there is often a difference in levels of laterite nickel ore when it is still in the mining front and after being transferred to the stockpile. This research is to determine the proportion of differences in the levels of Ni, Fe, MgO and SiO2 on the mining front with the stockpile and to determine the factors that influence changes in nickel content. The method used in this study is the grab sampling method in front mining and stockpile. The results of this study are based on the results of the analysis, obtained data on the levels of Ni, Fe, MgO and SiO2 on the mining front with a stockpile, the Ni content has a difference of 0.05% and the Fe content has a difference of 0.34%, the two minerals have the highest grades on the mining front. mining and MgO content has a difference of 2.68% and SiO2 content has a difference of 8.87%, the two minerals have the highest grade in the stockpile. Factors that influence changes in nickel content are the heterogeneous distribution of ore, the position of the waste above the ore and the rainy weather that occurs in the field, operator and sampling skills.

References

Thamsi, A. B., Sangadji, C. D., Nurhawaisyah, S. R., Aswadi, M., & Amsah, L. O. M. Y. (2022). Analisis Perbandingan Kadar Nikel Hasil Pengeboran dengan Hasil Penambangan di PT Mandiri Mineral Perkasa. Jurnal Pertambangan, 6(2), 65-70.

Arifin, M., Widodo, S., & Anshariah, A. (2015). Karakteristik Endapan Nikel Laterit Pada Blok X Pt. Bintangdelapan Mineral Kecamatan Bahodopi Kabupaten Morowali Provinsi Sulawesi Tengah. Jurnal Geomine, 1(1), 37-45.

Thamsi, A. B. (2017). Estimasi cadangan terukur endapan nikel laterit cog 2, 0% menggunakan metode inverse distance pada pt. teknik alum service, blok x. J. Geomine.

Thamsi, A. B., Jafar, N., & Fauzie, A. (2021). Analisis Pengaruh Morfologi Pada Pembentukan Nikel Laterit PT Prima Sentosa Alam Lestari Kabupaten Morowali Provinsi Sulawesi Tengah. Jurnal GEOSAPTA, 7(2), 75-78.

Wakila, M. H., Heriansyah, A. F., Firdaus, F., & Nurhawaisyah, S. R. (2018). Pengaruh Tingkat Pelapukan Terhadap Kadar Nikel Laterit Pada Daerah Ussu, Kec. Malili Kab. Luwu Timur Prov. Sulawesi Selatan.

Aswadi, M., Husain, J. R., Gazali, A., & Thamsi, A. B. (2022). Spread Of Laterite Nickel Based on Drill Data at PT Manunggal Sarana Surya Pratama, Southeast Sulawesi Province. Journal of Geology and Exploration, 1(2), 51-57.

Jafar, N. (2017). Identifikasi Sebaran Nikel Laterit Berdasarkan Hasil Test Pit Kecamatan Kabaena Kabupaten Bombana Provinsi Sulawesi Tenggara. Jurnal Geomine, 5(2).

Jafar, N. (2016). Analisis Perbandingan Kandungan Unsur Nikel (Ni) Dan Besi (Fe) Dari Data Titik Bor Dengan Realisasi Penambangan. Jurnal Geomine, 4(2), 274094.

Pranata, R. Y., Djamaluddin, D., Asmiani, N., & Thamsi, A. B. (2017). Analisis Perbandingan Kadar Nikel Berdasarkan Perencanaanterhadap Realisasi Penambangan. Jurnal Geomine, 5(3).