Panggabean, Patrick Christopher (2019) Studi Pengaruh Variasi Massa Limestone terhadap Kadar Ni dan Fe, Recovery Ni dan Fe, serta Senyawa pada Produk Logam dan Slag pada Proses Smelting Bijih Nikel Laterit Menggunakan Mini Blast Furnace. Other thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
02511540000056-Undergraduate_Theses.pdf Download (2MB) | Preview |
Abstract
Nikel laterite merupakan bahan baku nikel masa depan. Ini dikarenakan bahan baku nikel sulfida semakin berkurang sedangkan permintaan nikel sebagai bahan baku stainless steel semakin meningkat. Mengolah nikel laterit lewat Smelting menggunakan Blast Furnace menjadi penting karena kemampuan produksi yang tinggi. Pada pengolahan nikel laterite menggunakan Blast Furnace digunakan Limestone sebagai fluks. Limestone ini penting untuk dipelajari karena penggunaan Limestone sebagai fluks dapat menyebabkan kadar dan recovery nikel dan besi yang optimal. Variable massa Limestone yang digunakan adalah sebesar 7,5 kg, 8,5 kg, dan 9,5 kg. proses Smelting diawali dengan preparasi bahan baku berupa bijih nikel laterit, Limestone, dan batu bara, kemudian proses dilaksanakan pada temperatur 1700 0C dengan residence time 105 menit. Produk lalu dicetak dan di uji EDX untuk mengetahui kandungan unsur, dan XRD untuk mengetahui kandungan senyawa. Setelah analisis menggunakan data yang didapat lewat pengujian maka didapatkan bahwa massa Limestone 9,5 kg menghasilkan kadar Ni terbaik yaitu 30,57%, dan massa Limestone 8,5 kg menghasilkan kadar Fe terbaik yaitu 72,53%. Recovery Ni dan Fe terbaik didapatkan lewat massa Limestone 8,5 kg yaitu 64,30% dan 10,13%. Senyawa yang terbentuk pada produk logamadalah FeNi, sedangkan senyawa yang terbentuk pada produk Slag adalah AlO2, CrO3, NiFe2O4, dan CaMgO6SiO2.
==================================================================================================================================
Nickel laterite is the future of nickel. This statement is proven by the diminishing of the nickel sulphide and the rise of the demand for stainless steel. Smelting of nickel laterite using Blast Furnace becomes important because its high production rate and low operational cost. Limestone is used in Blast Furnace processing of nikel laterite as flux. This too is important because utilizing Limestone as flux in the right way will yield the best product concentration and recovery. The objectives of the study is to find the best mass variation of Limestone for smelting nickel laterite. The Limestone mass variations are 7,5 kg, 8,5 kg, and 9,5 kg. Smelting process begins with the preparation of feed material which consists of ore, Limestone, and coal, then smelting process operate at the temperature of 1700 oC for 105 minutes. The product is then cast and tested using EDX for elemental composition and XRD for compound composition. After analyzing using the data acquired it is found that the best Ni concentration of 30,57% is achieved using 9,5 kg Limestone, the best Fe concentration by using 8,5 kg Limestone at 72,53%. The best recovery of Ni and Fe of 64,30% and 10,13% respectively are achieved using 8,5 kg Limestone. The compound of the metal product are FeNi and AlO2, CrO3, NiFe2O4, dan CaMgO6SiO2 for Slag.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSMt 669.141 3 Pan s-1 2019 |
| Uncontrolled Keywords: | Smelting, Nickel Laterite, Concentration, Phase, Recovery |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN677 Blast furnaces. |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Patrick Christopher Panggabean |
| Date Deposited: | 29 Nov 2023 04:12 |
| Last Modified: | 29 Nov 2023 04:12 |
| URI: | http://repository.its.ac.id/id/eprint/65453 |
Actions (login required)
 |
View Item |