Analisis Pengaruh Variasi Persentase Massa Batu Bara Terhadap Kadar Ni, Kekuatan Dan Perolehan Sinter Pada Proses Sintering Bijih Nikel Laterit

Arfiansyah, Arfiansyah (2019) Analisis Pengaruh Variasi Persentase Massa Batu Bara Terhadap Kadar Ni, Kekuatan Dan Perolehan Sinter Pada Proses Sintering Bijih Nikel Laterit. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Nikel dapat dipadukan untuk mendapatkan berbagai macam sifat yang diinginkan. Salah satu proses untuk mendapatkan nikel tersebut adalah dengan blast furnace. Sinter sendiri mempunyai parameter agar dapat di gunakan dalam Blast furnace seperti kekuatan dan perolehan dari sinter tersebut. Batu bara mempunyai ketersediaan yang tinggi dengan harga yang lebih murah dibandingkan kokas, oleh karena itu penelitian ini dilakukan. Penelitian menggunakan bahan baku bijih nikel laterit dengan bahan bakar batu bara dan fluks limestone menggunakan neraca massa dan neraca panas. Dari presentase batu bara yang didapat divariasikan kepada sinter mix yang dimana nantinya akan dimasukan ke dalam bed sinter dan dipanaskan sampai 1200℃ selama 4 jam. Hasil dari penelitian di lakukan pengujian EDX, XRD, Drop test, dan perhitungan perolehan sinter untuk mengetahui kadar Ni, senyawa dalam sinter dan kekuatan sinter. Kadar Ni tertinggi terdapat pada persentase batu bara 4.8% yaitu sebesar 3.01%. Kekuatan dan perolehan sinter tertinggi didapat dengan persentase batu bara 7.3% yaitu sebesar 72.39% dan 65.88% Fasa yang terbentuk pada proses sintering adalah Pyroxene, Olivine, Quartz, Nickel iron oxide, Magnetite, Magnesiochromite dan Spinel. ====================================================================================================================================
Nickel can be alloyed with other metals to make different kind of properties. One of the process to obtain nickel metal is blast furnace. Sintering process is needed to increase the optimization of blast furnace process. Before sinter can be used, several parameters needed to be acquired. These parameters are the sinter strength and the sinter yield. The abundance and lower cost of coal can be used as substitute of coke. This research used laterite nickel ore as raw material with coal as the fuel and limestone as flux. Mass balance and heat balance are used in this research. Different coal percentage are used in the sintering process which mixed with the other material and inserted into the sinter bed. the sinter bed are heated to 1200℃ for 4 hour. Then the sinter products are analyzed with EDX, XRD, drop test, and yield calculation to obtain nickel contain, Shatter Index, and yield of the sinter. Highest nickel content is obtained with 4.8% coal percentage which is 3.01% as for the highest Shatter Index and yield are obtained with 7.3% coal percentage which is 72.39% and 65.88%. Phase that formed in the sintering process are Pyroxene, Olivine, Quartz, Nickel iron oxide, Magnetite, Magnesiochromite dan Spinel.

Item Type:	Thesis (Other)
Additional Information:	RSMt 671.373 Arf a-1 2019 3100019081913
Uncontrolled Keywords:	Sintering, Laterite Nickel, Coal Persentage, Ni Content, Sinter Strength, Sinter Yield
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN677 Blast furnaces.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Arfiansyah Arfiansyah
Date Deposited:	19 Nov 2025 08:39
Last Modified:	19 Nov 2025 08:39
URI:	http://repository.its.ac.id/id/eprint/64994

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