Studi Pengaruh Temperatur Pendinginan Terhadap Hasil Netralisasi Larutan Leaching Ferronickel Menggunakan Aditif MgO Untuk Sintesis NiSO4.6H2O

Maulidia, Alif Azizia Putri (2021) Studi Pengaruh Temperatur Pendinginan Terhadap Hasil Netralisasi Larutan Leaching Ferronickel Menggunakan Aditif MgO Untuk Sintesis NiSO4.6H2O. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Nikel digunakan sebagai bahan baku baterai Nickel Manganese Cobalt (NMC) sebagai senyawa Nickel Sulphate Hexahydrate (NiSO4.6H2O). Penelitian ini menggunakan nikel laterit sebagai ore. Untuk mengekstrak nikel, ferronickel dilakukan proses hidrometalurgi. Langkah pertama adalah dengan leaching menggunakan larutan H2SO4 2M selama 6 jam dengan kecepatan pengadukan 200 rpm temperatur 90oC. Larutan hasil leaching kemudian lakukan netralisasi dengan menggunakan agen penetral MgO 5% w/w sampai mencapai pH 3,5.Filtrat hasil netralisasi kemudian di saring untuk memisahkan filtrat dan residunya. Pada proses netralisasi menghasilkan garam magnesium sulfat (MgSO4) yang merupakan impurities. Untuk mengendapkan kristal MgSO4 dilakukan dengan menggunakan metode pendinginan. Pada penelitian ini variasi temperatur pendinginan MgSO4 yang digunakan adalah -5oC, 0oC, dan 5oC. Selanjutnya dilakukan kristalisasi sehingga menghasilkan NiSO4.6H2O. Recovery nikel tertinggi pada temperatur pendinginan -5oC dengan nilai recovery 59,61% dengan kandungan nikel 2.75%. Produk hasil kristalisasi masih terdapat senyawa lain seperti MgSO4, FeSO4, dan CoSO4.
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Nickel application is as the material of Nickel Manganese
Cobalt (NMC) battery for an electric vehicle. Nickel used in MNC
battery is Nickel (II) Sulphate Hexahydrate (NiSO4.6H2O)
compound. Lateritic nickel ore is used in this experiment ore. To
extract nickel, ferronickel is processed in hydrometallurgical
through several procedures. The first method is leaching in
H2SO4 2M in 6 hours and 200 rpm speed, temperature 90oC.
Leachingsolution then neutralized using MgO as neutralization
agent 20% w/w until pH 3,5. Neutralization solution then filtered
using filtration paper to separate the impurities and filtrate. The
naturalization process produces impurities magnesium sulfate
(MgSO4). To reduce the concentration of MgSO4, the cooling
temperature during neutralization is used. The variation of
cooling temperature used are -5
oC, 0
oC, and 5
oC. Furthermore is
crystallization, produces the final product in the form of
NiSO4.6H2O compounds. The best result is a sample at cooling
temperature, with a recovery value is 59.61% with a nickel
content of 2.75. However, in the product of crystallization, there
are still other compounds such as MgSO4, FeSO4, and CoSO4

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Feronickel, Netralisasi, NiSO4.6H2O, MgSO4.6H2O
Subjects:	H Social Sciences > H Social Sciences (General) > H61.4 Forecasting in the social sciences
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Alif Azizia Putri Maulidia
Date Deposited:	12 Aug 2021 11:41
Last Modified:	12 Aug 2021 11:41
URI:	http://repository.its.ac.id/id/eprint/86029

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