Oktaviandra, Kevin (2020) Studi Pengaruh Variasi Laju Alir Oksigen Terhadap Kadar Ni, Fe, Dan Senyawa Produk Hasil Proses Fire Refining Crude Feronikel Mini Blast Furnace (MBF). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tingginya kebutuhan komoditas nikel untuk pengaplikasian berbagai aspek engineering seperti Stainless Steel, Baterai, paduan dll semakin marak. Menjadi tantangan bagi Indonesia untuk mengembangkan proses pengolahan bijih laterite agar lebih optimal. Salah satu proses alternatif untuk pemurnian nikel laterit adalah Fire Refining. Pemurnian dengan memanfaatkan afinitas metal terhadap oksigen. Laju alir oksigen penting dipelajari karena penggunaan oksigen sebagai oksidator metal. Variabel laju alir oksigen yang digunakan adalah 1,5 liter/min, 2 liter/min, 2,5 liter/min, 3 liter/min dan 3,5 liter/min. Proses Fire Refining diawali preparasi alat dan bahan crude feronikel dan dihitung massanya 20 gr, kemudian dilakukan uji EDX untuk mengetahui kadar dan XRD untuk mengetahui senyawa, setelah itu dilakukan perhitungan mass balance dan heat balance. Selanjutnya dilakukan proses Fire Refining dengan variabel bebas laju alir oksigen dan variabel kontrol tetap laju alir LPG 0,6 m/s dan pada temperatur 1550℃. Dan terakhir dilakukan analisis dengan menggunakan XRD dan EDX untuk menghitung Yield. Pada penelitian ini didapat bahwa kadar unsur meningkat setiap variabel laju oksigen dengan kadar tertinggi pada laju oksigen 3,5 liter/min adalah 36,3%wt. Dan senyawa yang terbentuk pada Fire Refining adalah FeNi. Serta didapat yield yang tertinggi adalah pada variabel laju oksigen 2liter/min dengan besar yield 89,1%.
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The high demand for nickel commodities for the application of various aspects such as Stainless Steel, Batteries, alloys etc. It is a challenge for Indonesia to develop laterite ore processing to be more optimal. One alternative process for refining laterite nickel is Fire Refining. Purification by utilizing metal's affinity for oxygen. Oxygen flow rate is important to study because of the use of oxygen as a metal oxidizer. The variable oxygen flow rate used is 1.5 liter / min, 2 liters / min, 2.5 liters / min, 3 liters / min and 3.5 liters / min. The Fire Refining process begins with the preparation of tools and crude ferronickel material and its mass is calculated at 20 grams, then an EDX test is performed to determine the content and XRD to determine the compound, after which the mass balance and heat balance are calculated. Fire Refining process was then carried out with an independent variable oxygen flow rate and a fixed control variable LPG flow rate of 0.6 m / s and at a temperature of 1550 ℃. And finally an analysis using XRD and EDX to calculate yield. In this study it was found that the elemental content increased each variable oxygen rate with the highest level at the oxygen rate of 3.5 liters / min was 36.3% wt. And the compound formed in Fire Refining is FeNi. And the highest yield obtained is the variable oxygen rate of 2 liters / min with a large yield of 89,1%.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSMt 669.141 3 Okt s-1 2020 |
| Uncontrolled Keywords: | Fire Refining, Oksigen, Kadar, Yield, Oxygen, Concentrations |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN677 Blast furnaces. T Technology > TN Mining engineering. Metallurgy > TN689+ Physical metallurgy |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Kevin Oktaviandra |
| Date Deposited: | 19 Dec 2023 08:31 |
| Last Modified: | 19 Dec 2023 08:31 |
| URI: | http://repository.its.ac.id/id/eprint/73248 |
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