Extraction of Mg ion and Fabrication of Mg Compound from Ferro-Nickel Slag

Chu, Yong-Sik; Lim, Yoo-Ree; Park, Hong-Bum; Song, Hun; Lee, Jong-Kyu; Lee, Seungho

doi:10.4191/kcers.2010.47.6.613

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…Moreover, the dissolution of ferronickel slag with acid was also carried out by the hydro-pyrometallurgy process. The leaching process of ferronickel slag using the hydrochloride acid solution followed by the calcination process was carried out [22,23]. The concentration of the solvent, leaching temperature and time as well as calcination condition affect the percentage of MgO resulted.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The concentration of the solvent, leaching temperature and time as well as calcination condition affect the percentage of MgO resulted. Utilization of HCl in the leaching process at 30 °C for 30 minutes followed by the precipitation process using NH 4 OH and calcination process at 600 °C for 30 minutes, resulted in 95 %MgO [23]. Increasing leaching temperature and time up to 80 °C and 24 hours resulted in the high content of Mg in the filtrate [22].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Reverse leaching of magnesium from ferronickel slag using alkali solvent NaOH

Prasetyo

Darmawansyah

Mayangsari

et al. 2020

EEJET

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Проведено дослiдження з вилучення магнiю з феронiкелевого шлаку, обробленого зворотним вилуговуванням розчинами гiдроксиду натрiю (NaOH). Феронiкелевий шлак в основному складається з силiкату магнiю i силiкату залiза. Першим етапом дослiдження була пiдготовка феронiкелевого шлаку до подрiбнення за допомогою кульового млина до розмiру-200 меш. По-друге, прожарювання феронiкелевих шлакiв для видалення кристалiчної води i збiльшення пористостi для полегшення процесу вилуговування. Наступним кроком було зворотне вилуговування з використанням гiдроксиду натрiю (NaOH) для розчинення кремнезему. При розчиненнi кремнезему очiкувалося збiльшення вмiсту в залишку таких елементiв, як магнiй i залiзо. Змiнними в даному дослiдженнi з вилуговування феронiкелевого шлаку були час вилуговування, концентрацiя розчинника i температура вилуговування. Зворотне вилуговування феронiкелевого шлаку проводили зi змiною часу вiд 15 до 240 хвилин, температурою 30 °С, 70 °С i 100 °С, концентрацiями NaOH 9 М, 10 М i 11 М. Для вивчення вихiдних характеристик феронiкелевого шлаку i результатiв процесу вилуговування використовували рентгеноструктурний аналiз, рентгенофлуоресцентний аналiз i мас-спектрометрiю з iндуктивно-зв'язаною плазмою. Результати визначення характеристик зразкiв феронiкелевого шлаку методом рентгеноструктурного аналiзу показують, що в складi домiнуючих з'єднань присутнi форстерит (Mg 2 SiO 4), енстатiт (MgSiO 3) i фаялiт (Fe 2 SiO 4). Крiм того, результати також пiдтверджуються рентгенофлуоресцентним аналiзом i растровою електронною мiкроскопiєю. Кiлькiсний РФА аналiз показує, що феронiкелевий шлак мiстить 45,69 % SiO 2 , 29,32 % MgO i 16,5 % Fe 2 O 3. Результати растрової електронної мiкроскопiї показують, що Mg, Si, Fe i O зв'язуються разом, що вказує на присутнiсть силiкату магнiю i силiкату залiза. Найбiльший вiдсоток вилучення магнiю становить 73,10 % в умовах експериментальної температури 100 °С протягом 240 хвилин, концентрацiї розчинника 10 М i швидкостi перемiшування 300 об/хв. Збiльшення вiдсотка вилучення магнiю обумовлено розчиненням кремнезему в процесi вилуговування. Розчинення кремнезему пiдтверджується наявнiстю гiдроксиду магнiю i гiдроксиду залiза (II) в залишку, що показано рентгеноструктурним аналiзом. Це призвело до значного збiльшення вмiсту MgO в залишку до 42,8 %, як показав рентгенофлуоресцентний аналiз. Крiм того, растрова електронна мiкроскопiя показує, що Mg i O зв'язуються разом, що вказує на присутнiсть MgO. Також можна визначити, що MgO є домiнуючим Ключовi слова: феронiкель, шлак, форстерит, магнiй, кремнезем, вилуговування, зворотне вилуговування, гiдроксид натрiю, фiльтрат, залишок ,% вилучення

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Reverse leaching of magnesium from ferronickel slag using alkali solvent NaOH

Prasetyo

Darmawansyah

Mayangsari

et al. 2020

EEJET

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“…On the other hand, leaching process of ferronickel slag using acid solution resulted leached solution that contained high Co, Ni, Cu [16] and Mg [24] as well. Futher process such as precipitation and calcination to the magnesium leached solution resulted Magnesium oxide product [17,25]. However, without reducing silica content prior acid leaching, it produces gel leached solution that difficult to separate.…”

Section: Introductionmentioning

confidence: 99%

Magnesium extraction of ferronickel slag processed by alkali fusion and hydrochloric acid leaching

Prasetyo

Khaerul

Mayangsari

et al. 2021

J min metall B Metall

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A research using ferronickel slag, the by-product of ferronickel production, as raw material for magnesium extraction has been carried out. It is essential to upgrade the value of ferronickel slag instead of used directly for reclamation materials. Moreover, accumulation due to increasing ferronickel demand as well as environmental contamination due to various potencially toxic elements contained in the ferronickel slag could be prevented. The general objective of this study is to utilize the ferronickel slag for magnesium materials. The specific objective is to determine the optimum conditions of magnesium extraction in the process of alkali fusion followed by hydrochloric acid leaching. A novel method for magnesium extraction from ferronickel slag was carried out through reducing silica content followed by acid leaching method. Alkali fusion of the mixture of ferronickel slag and Na2CO3 at 1000 ?C for 60 minutes followed by water leaching at 100 ?C for 60 minutes with solid to liquid percentage of 20 % were carried out to separate the silica. The leaching residue resulted from water leaching was then leached using hydrochloric aid solution to extract magnesium. The leaching temperature and time as well as the hycrochloric acid concentration were varied in the acid leaching process. Alkali fusion process proved can be generated the sodium silicate that can be separated in the water leaching to the leached solution. Meanwhile, the leaching residue was leached using hydrochloric acid to extract the magnesium. The highest magnesium extraction percentage is 82.67% that resulted from an optimum acid leaching condition with temperature of 80 ?C for 30 minutes using 2M HCl solution. Based on the kinetics study, the activation energy (Ea) for the leaching reaction of magnesium at atmospheric pressure between 32?C to 80?C is 9.44 kJ/mol and affected by diffusion and chemical reactions.

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“…Chu et al . [ 16 ] extracted Mg and other ions, which are some of the main components of FNS in acid solution, and separated Mg ion from extracted ions to produce a compound thereof. They identified that Mg ions were not the only ions extracted from dissolved slag, but other components were also extracted.…”

Section: Introductionmentioning

confidence: 99%

Potential Soil Contamination in Areas Where Ferronickel Slag Is Used for Reclamation Work

2014

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This study aims to analyze contamination with the use of soil reclaimed with ferronickel slag (FNS). In order to investigate any contamination due to FNS disposal, soils were collected from three sites. The contamination analysis was done on these samples through a series of laboratory tests. Furthermore, laboratory tests simulating field conditions were performed in a soil chamber. In the lab test, three leaching agents, namely fresh water, acidic water and seawater, were used. The soil samples used were sand and silt with a relative density of 40% and a compaction ratio of 90%, respectively. The pH of the effluent discharged from the experimental soil chamber was also analyzed. After leaching, soil samples were subjected to analysis. The results showed that pH was higher in the silt than in the sand. The results of the laboratory tests exhibited that leaching of hazardous elements from FNS is limited, so that it can be used as a substitute for natural aggregate in the cement industry or construction applications.

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Extraction of Mg ion and Fabrication of Mg Compound from Ferro-Nickel Slag

Cited by 10 publications

References 5 publications

Reverse leaching of magnesium from ferronickel slag using alkali solvent NaOH

Reverse leaching of magnesium from ferronickel slag using alkali solvent NaOH

Magnesium extraction of ferronickel slag processed by alkali fusion and hydrochloric acid leaching

Potential Soil Contamination in Areas Where Ferronickel Slag Is Used for Reclamation Work

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