KOMPOSISI UNSUR DAN MINERAL DALAM PASIR BESI, RESIDU BAUKSIT DI PT. INDONESIA CHEMICAL ALUMINA (ICA) (ELEMENTAL COMPOSITION AND MINERALS IN IRON SAND, BAUXITE RESIDUE AT PT. INDONESIA CHEMICAL ALUMINA (ICA)
DOI:
https://doi.org/10.26418/indonesian.v4i3.48986Abstract
Iron sand is obtained from one of the waste treatments stages of bauxite residue called red mud, operated at PT. Indonesia Chemical Alumina (PT. ICA). Preliminary analysis of the sand indicates that the main element contained in the sand is iron with a percentage of up to 60% and titanium at 10%. This study aims to determine the elemental composition and mineral characteristics of sand that was separated magnetically from the iron sand. Magnetic separation was carried out in two stages, namely separation using a weak magnets and strong magnets. The separation resulted in approximately 71% of strong magnetic sand. The rest was separated using the strong magnet giving almost 70% of weak magnetic sand while the residue is non-magnetic sand. The weak magnetic sand was analyzed using XRF and XRD to determine elemental composition as well as the type of mineral contained in the material. Elemental analysis showed that the weak magnetic sand contains 66.331% of iron, 13,120% of silicone, 9.216% of aluminum and 7.040% of titanium. The XRD analysis presented that crystalline phase in the sand consists of ilmenite, hematite, goethite, quartz and rutile.
References
Amalia, D., dan Aziz, M., 2011, Percobaan Pendahuluan Pembuatan Alumina Kualitas Metalurgi Dari Bauksit Kalimantan Barat, Teknologi Mineral dan Batubara , 7 (4), 189- 191.
Palit, C., dan Suliestyah, 2020, Studi Konsentrasi pada Bauksit Asal Tayan dengan Menggunakan Metode Flotasi Kebalikan, Jurnal Geomine, 8(2), Hal 121-130.
Ibrahim, A., Yusuf, I., dan Azwar, 2012, Identifikasi Senyawa Logam dalam Pasir Besi di Propinsi Aceh, Majalah Ilmiah BISSOTEK, 7(1), pp. 44-51.
Jalil, Z., Sari, E. N., Ismail, dan Handoko, E., 2014, Studi Komposisi Fasa dan Sifat Kemagnetan Pasir Besi Pesisir Pantai Aceh yang Diseparasi dengan Metode Mechanical Milling, Indonesian Journal of Applied Physics, 4(1), pp. 110-114.
Prasdiantika, R., dan Susanto, 2016, Preparasi dan Penentuan Jenis Oksida Besi pada Material Magnetik Oksida Besi Lansilowo, Jurnal Tekno Sains, Vol.6 No.1, ISSN 2443- 131, Hal 1-58
Vidianti, I., A., dan Suprapto, 2014, Pemisahan Titanium Dioksida Dari Pasir Besi Kabupaten Lumajang Dengan Pelindingan H3PO4 Dan Agen Dekomposisi NaOH, Jurnal Sains dan Seni, Vol. 1 No. 1, Hal 1- 6
Downloads
Additional Files
Published
Issue
Section
License
Copyright (c) 2021 Imelda Hotmarisi Silalahi, Nikmatun Khasanah, Titin Anita Zaharah
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms: 1. Authors retain copyright and grant the journal the right of first publication, with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. 2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. 3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (see The Effect of Open Access).