Samuel, Mahanaim Nicolas (2020) Review Pengaruh Zat Aditif Sebagai Agen Selektivitas Dalam Proses Reduksi Selektif Nikel. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Nikel diperoleh dengan cara mengekstrak bijihnya yaitu bijih sulfida dan bijih laterit. Dengan semakin berkurangnya cadangan bijih sulfida di bumi maka pengolahan nikel pun beralih ke pengolahan bijih laterit. Pengolahan bijih laterit yang ekonomis pada saat ini ialah dengan menggunakan metode reduksi selektif. Perolehan nikel melalui proses reduksi selektif tidak lepas dari campur tangan zat aditif. Review penelitian ini bertujuan mengetahui pengaruh dari variasi zat aditif terhadap kadar dan recovery pada produk hasil reduksi selektif serta faktor selektivitas nikel. Secara umum metode proses reduksi selektif ialah dengan metode reduksi langsung yang dilanjutkan dengan pemisahan magnetik. Pengujian kemudian dilakukan pada produk hasil reduksi untuk mengetahui kadar nikel yang diperoleh, morfologi serta fasa yang terbentuk pada produk. Setelah dilakukan pengolahan data maka diperoleh hasil yaitu zat aditif sodium sulfat menghasilkan peningkatan kadar nikel tertinggi dan zat aditif sodium klorida menghasilkan nilai recovery nikel tertinggi. Hasil perhitungan faktor selektivitas nikel tertinggi dihasilkan oleh zat aditif sodium sulfat. Kata Kunci: Reduksi Selektif; Nikel Laterit; Aditif; Kalsium Sulfat; Natrium Klorida; Natrium Sulfat.
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Nickel is obtained by extracting its ore, namely sulfide ore and laterite ore. With the reduction in sulfide ore reserves on earth, nickel processing has shifted to laterite ore processing. The economical processing of laterite ore at this time is obtained by using selective reduction method. Acquisition of nickel through a selective reduction process is inseparable from the influence of additives. This research aims to determine the effect of additive variations on grade and recovery of selective reduction products and nickel selectivity factors. In general, the method of the selective reduction process is the direct reduction method followed by magnetic separation. Tests are then carried out on the reduced product to determine the grade of nickel obtained, morphology and phases formed on the product. After processing the data, the results obtained are sodium sulfate additives produce the highest increase in nickel content and sodium chloride additives produce the highest nickel recovery value. The results of the calculation of the highest nickel selectivity factor were obtained by the sodium sulfate additive. Keywords: Selective Reduction; Nickel Laterite; Additives; Calcium Sulfate; Sodium Chloride; Sodium Sulfate.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Reduksi Selektif, Nikel Laterit, Aditif, Kalsium Sulfat, Natrium Klorida, Natrium Sulfat, Selective Reduction, Nickel Laterite, Additives, Calcium Sulfate, Sodium Chloride, Sodium Sulfate. |
| Subjects: | T Technology > TN Mining engineering. Metallurgy T Technology > TN Mining engineering. Metallurgy > TN799.N6 Nickel--Metallurgy |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Mahanaim Nicolas Samuel |
| Date Deposited: | 13 Aug 2020 03:55 |
| Last Modified: | 30 May 2023 07:31 |
| URI: | http://repository.its.ac.id/id/eprint/77788 |
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