Study of selective reduction in lateritic nickel ore: Saprolite versus limonite

Nurjaman, Fajar; Astuti, Widi; Bahfie, Fathan; Suharno, Bambang

doi:10.1016/j.matpr.2020.11.687

Cited by 13 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Laterite nickel ore is a resource that can be used to produce stainless steel [90]. Compared with traditional fire smelting, selective reduction of laterite nickel ore pellets can achieve low energy consumption and clean production [91].…”

Section: Metallurgical Properties Of Mgo-bearing Pelletsmentioning

confidence: 99%

Review of pellets and blast furnace slag research progress: the effects of MgO on metallurgical properties

Chen,

Jiang,

Wen

et al. 2023

Ironmaking & Steelmaking

View full text Add to dashboard Cite

It is imperative to reduce the pollution and energy consumption in the blast furnace ironmaking process. High pellets operation is a developing direction in the future. The function of blast furnace slag system cannot be ignored. In order to balance the MgO content in blast furnace slag and improve the metallurgical properties of pellets in the high pellets ratio operation, the research on MgO-bearing pellets is necessary. In this paper, the metallurgical properties of MgO-bearing pellets and the properties of blast furnace slag effect by MgO in different raw material conditions, especially for Vanadium Titanomagnetite, were analysed and summarized. This review provided a reference for the development of MgO-bearing pellets and the performance of blast furnace slag effect by MgO. It is hoped to reduce pollution and promote the technical progress of blast furnace ironmaking.

show abstract

Section: Metallurgical Properties Of Mgo-bearing Pelletsmentioning

confidence: 99%

Review of pellets and blast furnace slag research progress: the effects of MgO on metallurgical properties

Chen,

Jiang,

Wen

et al. 2023

Ironmaking & Steelmaking

View full text Add to dashboard Cite

show abstract

“…Laterite nickel ore contains 0.9–1.5% nickel, 0.07–0.1% cobalt, 2–3% Cr 2 O 3 , 5–18% MgO, 10–30% SiO 2 , 20–50% Fe, and 4–7% Al 2 O 3. The primary treatment technologies for laterite nickel ore constitute pyrometallurgy and hydrometallurgy . Of these, owing to the depletion of high-grade nickel ores, hydrometallurgy has attracted widespread attention .…”

Section: Introductionmentioning

confidence: 99%

“…9 The primary treatment technologies for laterite nickel ore constitute pyrometallurgy and hydrometallurgy. 10 Of these, owing to the depletion of high-grade nickel ores, hydrometallurgy has attracted widespread attention. 11 In this regard, atmospheric hydrochloric acid leaching has attracted the attention of researchers owing to its fast leaching rate and speed.…”

Section: ■ Introductionmentioning

confidence: 99%

Solid–Liquid Phase Equilibria in the Ternary MgCl₂–NiCl₂–H₂O System at 303–323 K

Zhang

Ning

et al. 2023

J. Chem. Eng. Data

View full text Add to dashboard Cite

For efficient nickel recovery from laterite nickel ore, an improved understanding of the solubility in ternary MgCl2–NiCl2–H2O systems is required. Herein, the stable phase equilibria in a ternary MgCl2–NiCl2–H2O system at 303, 313, and 323 K were studied using an isothermal dissolution equilibrium method. For this ternary system, the solubility and density were measured at different temperatures. The equilibrium solid phases were identified using X-ray diffraction, combined with the Schreinemakers’ method for wet residues. Based on the solubility data, the phase diagrams of the MgCl2–NiCl2–H2O system at 303, 313, and 323 K were plotted. At all investigated temperatures, the phase diagrams of this ternary system presented an invariant point, two isothermal dissolution curves, and three crystallization regions. Neither double salt nor solid solution was produced. The Mixed Solvent Electrolyte (MSE) model was applied to calculate the solubility for this ternary system. According to the comparison of phase diagram, the calculated data were in good agreement with the experimental values.

show abstract

Artificial Slags with Modulated Properties for Controlled Nickel Dissolution in Smelting Process

Urtnasan,

Kumar,

Wang

2024

Trans Indian Inst Met

View full text Add to dashboard Cite

In pyrometallurgy process involving drying, calcination and reductive smelting steps, Saprolite ore is subjected in an electric arc furnace to produce Fe–Ni alloy and Ni matte. To optimize the nickel smelting step, the slag consisted of MgO–SiO2–FeO and having a lower viscosity and high fluidity is required. In this study, a number of new slag samples with varied degree of compositions are manufactured and used to examine the effect of their viscosity on nickel dissolution. Further correlation between the slag basicity and FeO addition on the smelting was also tested and simulated using Fe–Ni alloy from saprolite ore. As per the observations, the nickel dissolution increases with the increased content of FeO at a certain degree of activity which in turn can cause oxidation of nickel during the process. The slags with the ratio of MgO/SiO2 = 0.4–0.6, 30% fraction of FeO, and a viscosity of 1.8–1.06 poise in the olivine zone are found effective for the lowest dissolution rate of nickel with 0.021, 0.022, and 0.018 wt.%. The lowest dissolution rate is recorded for the slag with MgO/SiO2 ratio about 0.6. These slags with controlled amount of constituents could be used to recover precious metal from nickel smelter at a lower dissolution rate and thereby allowing to reduce the waste of the metal during smelting process.

show abstract

Study of selective reduction in lateritic nickel ore: Saprolite versus limonite

Cited by 13 publications

References 14 publications

Review of pellets and blast furnace slag research progress: the effects of MgO on metallurgical properties

Review of pellets and blast furnace slag research progress: the effects of MgO on metallurgical properties

Solid–Liquid Phase Equilibria in the Ternary MgCl₂–NiCl₂–H₂O System at 303–323 K

Artificial Slags with Modulated Properties for Controlled Nickel Dissolution in Smelting Process

Contact Info

Product

Resources

About

Study of selective reduction in lateritic nickel ore: Saprolite versus limonite

Cited by 13 publications

References 14 publications

Review of pellets and blast furnace slag research progress: the effects of MgO on metallurgical properties

Review of pellets and blast furnace slag research progress: the effects of MgO on metallurgical properties

Solid–Liquid Phase Equilibria in the Ternary MgCl2–NiCl2–H2O System at 303–323 K

Artificial Slags with Modulated Properties for Controlled Nickel Dissolution in Smelting Process

Contact Info

Product

Resources

About

Solid–Liquid Phase Equilibria in the Ternary MgCl₂–NiCl₂–H₂O System at 303–323 K