Izzati, Jihan Nur (2022) Analisis Pengaruh Siklus Termal dengan Variasi Temperatur Pendinginan terhadap Hasil Netralisasi Larutan Leaching Ferronickel Menggunakan Aditif CaCO3 untuk Sintesis NiSO4.6H2O. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Salah satu upaya Indonesia untuk menekan peningkatan pemanasan global adalah mengembangkan electric vehicle yang komponen utamanya adalah baterai, seperti baterai NMC berupa senyawa Nickel (II) Sulfate Hexahydrate. Penelitian ini bertujuan untuk menganalisis pengaruh temperatur pendinginan pada siklus termal sebagai post-treatment filtrat netralisasi. Material yang digunakan adalah ferronickel hasil smelting dari mini blast furnace. Proses leaching dilakukan menggunakan 120 mL larutan H2SO4 2M pada 90oC selama 6 jam dengan kecepatan pengadukan 200 rpm, dilanjutkan proses netralisasi menggunakan serbuk CaCO3 hingga pH 3,01 pada 90oC. Filtrat netralisasi dilakukan siklus termal sebanyak 6 siklus dengan pemanasan pada 90oC selama 4 jam, kemudian didinginkan pada variasi temperatur 30, 20, 10, dan 0oC selama 20 jam. Setelah itu, dilakukan proses kristalisasi untuk menghasilkan senyawa NiSO4.6H2O. Hasil kristalisasi selanjutnya dicuci dan dikeringkan. Hasil terbaik diperoleh pada temperatur pendinginan 0oC dengan konsentrasi Ni 91,87%, recovery Ni 100%, kandungan Ni 49,27%, dan separation efficiency Ni 85,37%.
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One of Indonesia's efforts to suppress the increase in global warming is to develop electric vehicles whose main components are batteries, such as NMC batteries in the form of Nickel (II) Sulfate Hexahydrate compounds. This study aims to analyze the effect of cooling temperature on the thermal cycle as post-treatment neutralization filtrate. The material used is ferronickel resulting from smelting from a mini blast furnace. The leaching process was carried out using 120 mL of 2M H2SO4 solution at 90oC for 6 hours with a stirring speed of 200 rpm, followed by a neutralization process using CaCO3 powder to pH 3.01 at 90oC. The neutralization filtrate was subjected to 6 cycles of thermal cycles by heating at 90oC for 4 hours, then cooling at various temperatures of 30, 20, 10, and 0oC for 20 hours. After that, the crystallization process was carried out to produce NiSO4.6H2O compounds. The resulting crystallization is then washed and dried. The best results were obtained at 0oC cooling temperature with Ni concentration 91.87%, Ni recovery 100%, Ni content 49.27%, and Ni separation efficiency 85.37%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Ferronickel, Leaching, Neutralization, NiSO4.6H2O, NMC Battery, Thermal Cycle, Baterai NMC, Ferronickel, Leaching, Netralisasi, NiSO4.6H2O, Siklus Termal |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN688 Hydrometallurgy T Technology > TN Mining engineering. Metallurgy > TN799.N6 Nickel--Metallurgy |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Jihan Nur Izzati |
| Date Deposited: | 04 Feb 2022 02:42 |
| Last Modified: | 31 Oct 2022 04:14 |
| URI: | http://repository.its.ac.id/id/eprint/92732 |
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