The effect of sulfuric acid concentration on the leaching process of crude Fe-Ni obtained from mini blast furnace process

Abdul, Fakhreza; Suryandaru, H. V.; Saputra, Nicky Dwi; Pintowantoro, Sungging

doi:10.1063/5.0071478

Cited by 3 publications

(4 citation statements)

References 13 publications

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“…After characterization of crude ferronickel powder, the next procedure was leaching process. The leaching process was carried out using 120 ml of 2M sulfuric acid solution at a temperature of 90°C for 6 hours [18]. After the leaching process is complete, a filtering process is carried out to separate the filtrate and the leaching residue.…”

Section: Methodsmentioning

confidence: 99%

Role of Cooling Temperature on Impurities Precipitation of Metal Sulfate Solution Derived from Crude Ferronickel Leaching Using MgO

Maulidia,

Fauzi,

Abdul

et al. 2024

AMM

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Nickel is used as a raw material for Nickel Manganese Cobalt (NMC) batteries as a compound of Nickel Sulphate Hexahydrate (NiSO4.6H2O). This study used nickel laterite as ore. A hydrometallurgical process carries out Ferronickel to extract nickel concentrate. The first step is leaching using 2M H2SO4 solution for 6 hours with a stirring speed of 200 rpm at 90°C. The leached solution was then neutralized using a neutralizing agent MgO 5% w/w until it reached a pH of 3.5. The neutralized filtrate was then filtered to separate the filtrate and the residue. The neutralization process produces magnesium sulfate salt (MgSO4), which is an impurity. Next, the cooling temperature method is used to precipitate MgSO4 crystals. In this study, the variation of the MgSO4 cooling temperature used was -5, 0, and 5 °C. Subsequently, crystallization was carried out to produce NiSO4.6H2O. The highest nickel recovery (59.61%) can be achieved using a cooling temperature of -5 °C. Also, by using -5 °C of cooling temperature, the nickel content of crystal product is 2.75%. The crystallization product still contains other compounds, such as MgSO4, FeSO4, and CoSO4.

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Section: Methodsmentioning

confidence: 99%

Role of Cooling Temperature on Impurities Precipitation of Metal Sulfate Solution Derived from Crude Ferronickel Leaching Using MgO

Maulidia,

Fauzi,

Abdul

et al. 2024

AMM

Self Cite

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“…The leaching process was observed to influence stirring speed on percent extraction, recovery, chemical composition, and form compounds. The leaching process was done using a solution of 2M sulfuric acid as much as 120 ml at a temperature of 90 ° C for 6 hours [18,19]. After the leaching process was complete, a filtration process separated between the filtrate and the leaching residue.…”

Section: Leaching Processmentioning

confidence: 99%

“…In Fe(OH)2, compounds have a higher solubility yield so that it has an optimum pH at an acidic pH than Ni(OH)2 and Co(OH)2 compounds. While ions that are not bonded with hydroxide still form FeSO4, NiSO4, and CoSO4 compounds[18]. The best recovery result is at pH 3.5 with Recovery of Ni at 23.02%, Fe recovery at 1.59%, and recovery Co at 36.92%.…”

mentioning

confidence: 99%

Effect of pH on Precipitation of Ferronickel Leaching Solution by Using MgO for Mixed Sulfate Precipitate Synthesis

Prabowo,

Abdul,

Setiyorini

et al. 2024

AMM

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The increasing demand for electric vehicles affects the high demand for nickel-based batteries, including Nickel Manganese Cobalt (NMC) batteries. Generally, NMC is processed from high-quality ore (sulfide ore) to produce nickel (II) sulfate hexahydrate or NiSO4.6H2O. But sulfide ore face scarcity due to a long history of mining and exploitation. Thus, laterite-type nickel ore can be an alternative to nickel resources. This study aims to produce mixed sulfate precipitates from a ferronickel leaching solution that can be utilized further to produce NiSO4.6H2O. Also, this research will study the pH effect of the precipitation process on the product's elemental composition, recovery, and compounds formed. The precipitation process was conducted using 5% MgO (weight basis) with a pH range of 2.5 to 6.5 with one increment. The mixed sulfate precipitates were characterized using AAS, EDX, and XRD. When using a pH of 3.5, a nickel concentration of 1473.00 ppm, nickel recovery of 23.02%, and Nickel grade of 3.18% could be obtained. As a result, the phase of NiSO4.6H2O was formed. Also, the other phases were formed after precipitation, such as CoSO4, FeSO4, and MgSO4.

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“…One of the pyrometallurgical reactors is the Mini Blast Furnace (MBF). MBF is a reactor that combines the workings of kupola and Blast furnace, in other words the working principle is by counter current flow [3]. MBF development can be done by optimizing the various parameters that affect the process.…”

Section: Of 2009 On Mineral and Coal Miningmentioning

confidence: 99%

Analysis of Large Bell Angle in Double Bell System on Burden Material Distribution and Layer Deformation in Mini Blast Furnace with Capacity 250 Ton/Day Using Solid Particle Model

Pintowantoro

Hidayat

Abdul

et al. 2019

MSF

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The abundant of nickel ore resources in Indonesia and the regulations of Law of Coals and Minerals No. 4 year 2009 cause the development of nickel ore processing technology. One of the proven nickel ore processing technology is Mini Blast Furnace (MBF). When, the raw materials were fed to the MBF, there is a charging system to ensure good distribution of raw materials in MBF. The double bell charging system has an important role on the distribution of burden material in MBF. By optimizing the distribution and layers of the material burden, it will increase the stability and efficiency of the MBF process. Therefore, this study focused on analyzing the effect of large bell angle on the distribution of burden material in MBF using discrete element method. After analyzed, large bell angle differences produce different burden material distribution. For particle distribution, particles of small density (coal and dolomitee) tend to be concentrated in the center zone and particles of large density (ore) tend to be concentrated in the intermediate and peripheral zone. The larger angle of the large bell will increase particle falling velocity and the kinetic energy of the burden material. The most stable layer in MBF was obtained when using 65o bell angle. The MBF with 65o large bell angle is the best bell angle for MBF with capacity of 250 ton/day due to the greatest possibility of central working furnace operation.

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The effect of sulfuric acid concentration on the leaching process of crude Fe-Ni obtained from mini blast furnace process

Cited by 3 publications

References 13 publications

Role of Cooling Temperature on Impurities Precipitation of Metal Sulfate Solution Derived from Crude Ferronickel Leaching Using MgO

Role of Cooling Temperature on Impurities Precipitation of Metal Sulfate Solution Derived from Crude Ferronickel Leaching Using MgO

Effect of pH on Precipitation of Ferronickel Leaching Solution by Using MgO for Mixed Sulfate Precipitate Synthesis

Analysis of Large Bell Angle in Double Bell System on Burden Material Distribution and Layer Deformation in Mini Blast Furnace with Capacity 250 Ton/Day Using Solid Particle Model

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