Analisis Pengaruh Variasi Jenis Batubara Dalam Proses Aglomerasi Bijih Nikel Laterit Terhadap Kadar Ni dan Fe Serta Morfologi Aglomerat Sebagai Bahan Umpan Mini Blast Furnace

Prameswara, Bima (2017) Analisis Pengaruh Variasi Jenis Batubara Dalam Proses Aglomerasi Bijih Nikel Laterit Terhadap Kadar Ni dan Fe Serta Morfologi Aglomerat Sebagai Bahan Umpan Mini Blast Furnace. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Berdasarkan data dari Kementrian ESDM, jumlah batubara di Indonesia saat ini sangat berlimpah. Terlebih batubara jenis kelas menengah yang tersebar di Sumatera dan Kalimantan. Akan tetapi sangat sedikit industri, khususnya industri nikel di Indonesia yang menggunakan batubara kelas menengah tersebut. Oleh karena itu dilakukan penelitian pada proses pembuatan nikel dengan reduktor batubara. Penelitian dilakukan dengan melakukan proses aglomerasi briket bijih nikel laterit yang telah dicampur dengan batu bara, fluks, dan natrium sulfat. Proses aglomerasi dilaukan dengan temperatur 1200 oC yang kemudian di holding selama 3 jam. Setelah dilakukan proses aglomerasi, briket hasil aglomerasi dilakukan pengujian SEM-EDX dan XRD untuk mengetahui kadar unsur Fe dan Ni, fasa yang terbentuk, dan morfologi briket. Hasil penelitian ini dibandingkan dengan kondisi awalnya. Hasil penelitian ini diperoleh peningkatan kadar Ni yang paling tinggi pada penggunaan batubara B dengan peningkatan sebesar 1.8%. Dari segi permeabilitas yang paling tinggi pada penggunaan Batubara A. ================================================================== Data from Energy and Mineral Resources Ministry reveal that there were plentiful amount of coal in Indonesia these days. Moreover, the middle class coal which straggled all over Sumatera and Kalimantan. However, measly industrial sector, especially by nickel industry in Indonesia that were har nessing the middle class coals. Therefore, this nickel metal making with coal based reduction research conducted. The research conducted by lateritic nickel ore agglomeration being briquetted and mixed with coal, flux with sodium sulpha te. The agglomeratio n process carried out with temperature at 1200 o C afterward held for 3 hours. After the agglomeration process, the outcome of agglomerated briquetted was characterized with SEM - EDX and XRD test to understand the percentage of Fe and Ni, phase s which formed, and briquette morphology. The output of this research compared with the initial conditions. Researchers obtained the highest increase in Ni content using coal B with an increase of 1.8%. In terms of the highest permeability on the use of Coal A.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Nikel Laterit, Aglomerasi, Volatile Matter, Permeabilitas, coals
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Prameswara Bima
Date Deposited: 14 Sep 2017 07:44
Last Modified: 14 Sep 2017 07:48
URI: http://repository.its.ac.id/id/eprint/43546

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