Analisis Pengaruh Variasi Ukuran Partikel Ferronickel Terhadap Proses Leaching Ferronickel Produk Dari Mini Blast Furnace Terhadap Recovery, Komposisi Kimia, Dan Senyawa NiSO4.6H2O

Sahiruddin, Sahiruddin (2021) Analisis Pengaruh Variasi Ukuran Partikel Ferronickel Terhadap Proses Leaching Ferronickel Produk Dari Mini Blast Furnace Terhadap Recovery, Komposisi Kimia, Dan Senyawa NiSO4.6H2O. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Permintaan nikel setiap tahun mengalami peningkatan. Salah satu kegunaan nikel adalah sebagai bahan utama pembuatan katodad dalam baterai Nickel Manganese Cobalt (NMC). Senyawa Nickel (II) Sulphate Hexahydrate (NiSO4.6H2O) dibutuhkan dalam pembuatan baterai NMC. Nickel laterit dipilih sebagai bahan baku utama dalam penelitian ini. Nikel laterit dapat diproses melalui dua metode pirometalurgi dan hidrometalurgi. Produk dari pirometalurgi pada ore nikel laterit adalah ferronickel yang akan dilakukan proses leaching. Penelitian ini bertujuan untuk menganalisis pengaruh variasi ukuran partikel ferronickel yang digunakan pada proses leaching terhadap recovery Fe, Ni, dan Co untuk sintesis NiSO¬4.6H2O yang terbentuk dengan variasi ukuran partikel -50 µm, +50 -80 µm, dan +80 -112 µm. ferronickel dilakukan proses leaching dengan H2SO4. Variabel terbaik pada proses leaching adalah pada -50 µm. Proses selanjutnya adalah proses netralisasi yang bertujuan untuk mengikat logam pengotor yaitu Fe. Larutan hasil leaching direaksikan dengan NaOH 2,5 M hingga pH 6. Setelah itu, dilakukan proses kristalisasi untuk mendapatkan produk akhir yaitu NiSO4.6H2O. Persentase ekstraksi nikel tetrtinggi terdapat pada variabel -50 µm dengan persentase ekstraksi sebesar 98,19%. Kadar nikel tertinggi terdapat pada variabel -50 µm sebesar 13,1433%. Pada produk kristalisasi ditemukan pengotor berupa senyawa FeSO4 dan Na2SO4. Hal ini menandakan bahwa proses netralisasi masih belum berjalan dengan maksimal. Nilai recovery nikel tertinggi didapatkan sebesar 83,79% pada variabel -50 µm. ====================================================================================================== Nickel demand is increasing every year. One of the uses of nickel is as the main ingredient in the manufacture of cathode in Nickel Manganese Cobalt (NMC) batteries. Nickel (II) Sulphate Hexahydrate (NiSO4.6H2O) compounds are needed in the manufacture of NMC batteries. Nickel laterite was selected as the main raw material in this study. Nickel laterite can be processed through two pyrometallurgical and hydrometallurgical methods. The product of pyrotechnics in nickel laterite ore is ferronickel which will be done leaching process. This study aims to analyze the influence of ferronickel particle size variations used in the leaching process on Fe, Ni, and co recovery for the synthesis of NiSO4.6H2O formed with variations in particle size of -50 μm, +50 -80 μm, and +80 -112 μm. ferronickel is carried out leaching process with H2SO4. The best variable in the leaching process is at -50 μm. The next process is a neutralization process that aims to bind the Fe. The leaching solution is reacted with NaOH 2.5 M to pH 6. After that, the crystallization process is carried out to obtain the final product, NiSO4.6H2O. The highest percentage of nickel extraction is in variable -50 μm with an extraction percentage of 98.19%. The highest nickel content was in the variable -50 μm at 13.1433%. In crystallization, products found impurities in the form of compounds FeSO4 and Na2SO4. This indicates that the neutralization process is still not running to the maximum. The highest nickel recovery value was obtained at 83.79% on the variable -50 μm.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: baterai NMC, nikel laterit, feronickel, NiSO4.6H2O, leaching,NMC battery, nickel laterite, ferronickel, NiSO4.6H2O, leaching
Subjects: T Technology > TN Mining engineering. Metallurgy > TN677 Blast furnaces.
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: sahiruddin sahiruddin
Date Deposited: 25 Feb 2021 02:07
Last Modified: 25 Feb 2021 04:18
URI: https://repository.its.ac.id/id/eprint/82786

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