Studi Variasi Jenis Flux pada Proses Peleburan Direct Reduced Iron (DRI) terhadap Kandungan Fe Total dan Recovery Fe dalam Proses Pembuatan Pig Iron dengan Metode Electric Arc Furnace

Purnamawan, Treshna Satria (2018) Studi Variasi Jenis Flux pada Proses Peleburan Direct Reduced Iron (DRI) terhadap Kandungan Fe Total dan Recovery Fe dalam Proses Pembuatan Pig Iron dengan Metode Electric Arc Furnace. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Salah satu bahan dasar besi yaitu pasir besi, dimana ketersediaan nya di Indonesia yang sangat melimpah serta tersebar di berbagai pulau. Pasir besi dapat diolah menjadi produk seperti direct reduced iron lalu menjadi pig iron. Pada proses pembuatan direct reduced iron, briket pasir besi akan direduksi dengan cara dipanaskan pada muffle furnace sampai temperatur 950oC selama 3 jam lalu dilakukan holding pada temperatur 1350oC selama 10 jam, kemudian melakukan pendinginan selama 12 jam dalam muffle furnace. Direct reduced iron yang didapat kemudian dilebur dengan menggunakan teknologi Electric Arc Furnace (EAF) dengan arus 180 A, tegangan sebesar 16,2 volt selama 6 menit. Pada penelitian ini akan membahas pengaruh penambahan variasi jenis flux pada proses peleburan direct reduced iron terhadap recovery Fe dan kandungan Fe total dalam proses pembuatan pig iron dengan metode electric arc furnace. Terdapat tiga jenis variasi flux yang digunakan yaitu Silika Dioksida (SiO2), Kalsium Karbonat (CaCO3) serta Magnesium Oksida (MgO). Hasil dari proses ini akan dilakukan perhitungan recovery terhadap Fe serta dikarakterisasi menggunakan pengujian XRD, dan EDX. Dari hasil penelitian terlihat bahwa direct reduction iron menghasilkan kandungan Fe total sebesar 75,722%. Selanjutnya hasil peleburan direct reduced iron dengan variasi flux SiO2 memiliki kandungan Fe total serta recovery Fe yang paling tinggi yaitu sebesar 91,585% serta 98,78% ============== One of the basic materials of iron sand iron, which is very abundant in Indonesia and spread in various islands. Iron sand can be processed into products such as iron reduced directly into pig iron. In the process of making direct iron reduced, iron sand briquettes will be reduced by heating to dampen the furnace until 950oC for 3 hours then carried out at 1350oC for 10 hours, then cooling for 12 hours in a dampening furnace. The direct reduced of the iron obtained is then melted using Electric Arc Furnace (EAF) technology with 180 A current, 16.2 volt for 6 minutes. In this research will discuss the effect of addition of flux type on the direct iron reduced process to the recovery of Fe and the total Fe content in the process of making pig iron by electric arc furnace method. There are three types of flux variations used are Silica Dioxide (SiO2), Calcium Carbonate (CaCO3) and Magnesium Oxide (MgO). The results of this process will be calculated recovery of Fe and characterized using XRD motors, and EDX. From the results of the study seen directly iron reduced with total Fe content of 75.722%. Furthermore, direct iron melting result with SiO2 flux variation has the highest Fe content and Fe recovery which is the highest is 91,585% and 98,78%

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Direct Reduced Iron; EAF; Recovery Fe; Pig Iron.
Subjects: T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Treshna Satria Purnamawan
Date Deposited: 12 Feb 2018 05:21
Last Modified: 12 Feb 2018 05:21
URI: http://repository.its.ac.id/id/eprint/49281

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