Mathematical Simulation of the Process of Nickel Oxide Recovery in a Tube-Type Rotary Kiln

Sharikov, Yu. V.; Liu, Zifeng

doi:10.1007/s11015-018-0702-2

Cited by 2 publications

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“…Only the large gangue minerals with a low nickel content and low rate of decay can be removed by wet or dry beneficiation. So far, no effective physical beneficiation method has been found to enrich laterite nickel ore. Laterite ore can be divided into two types: One is the limonite type, which is contained in the surface of laterite ore, in which nickel occurs mainly in the solid melt state of nickel oxide and iron oxide, such as (Fe,Ni)O(OH)·nH 2 O; and the other type is the silicate-type nickel oxide, in which Ni, Fe,t and Co replace part of magnesium oxide in different proportions, especially serpentine Mg 6 [Si 4 O 10 ](OH) 8 [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Nickel from Garnierite Laterite Ore Using Roasting and Magnetic Separation with Calcium Chloride and Iron Concentrate

et al. 2020

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In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and 37.86% SiO 2 was collected in the Mojiang area of China. Garnierite was the Ni-bearing mineral; the other main minerals were potash feldspar, forsterite, tremolite, halloysite, quartz, and kaolinite in the garnierite laterite ore. The iron phase transformations show that nickel is transformed from (Ni,Mg)O·SiO 2 ·nH 2 O to a new nickel mineral phase dominated by [Ni]Fe solid solution; and iron changed from Fe 2 O 3 and FeOOH to a new iron mineral phase dominated by metal Fe and Fe 3 O 4 after segregation roasting. Ferronickel concentrate with Ni of 16.16%, Fe of 73.67%, and nickel recovery of 90.33% was obtained under the comprehensive conditions used: A roasting temperature of 1100 • C, a roasting time of 90 min, a calcium chloride dosage of 15%, an iron concentrate dosage of 30%, a coke dosage of 15%, a coke size of −1 + 0.5 mm, a magnetic separation grinding fineness of <45 µm occupying 90%, and a magnetic separation magnetic field intensity of H = 0.10 T. The main minerals in ferronickel concentrate are Fe, [Ni]Fe, Fe 3 O 4 , and a small amount of gangue minerals, such as CaO·SiO 2 and CaO·Al 2 O 3 ·SiO 2 .

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Section: Introductionmentioning

confidence: 99%

Extraction of Nickel from Garnierite Laterite Ore Using Roasting and Magnetic Separation with Calcium Chloride and Iron Concentrate

et al. 2020

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“…Gravity beneficiation method is mainly used for arsenide with larger specific gravity (e.g., cobaltite with a specific gravity of 6.2 and arsenic-cobalt with a specific gravity of 6.5). As there is small difference between the specific gravity of cobalt oxide mineral and that of gangue, it is difficult to separate the cobalt oxide mineral (the specific gravity of cobalt wafer is 3, and the specific gravity of cobalt earth ratio is 3-3.5) from gangue effectively by gravity beneficiation method, thus making it unable to obtain an ideal cobalt concentrate product [4,5].…”

Section: Introductionmentioning

confidence: 99%

Recovering Cobalt and Sulfur in Low Grade Cobalt-Bearing V–Ti Magnetite Tailings Using Flotation Process

Xiao

Yu-shu

2019

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There is 0.032% cobalt and 0.56% sulfur in the cobalt-bearing V–Ti tailings in the Panxi Region, with the metal sulfide minerals mainly including FeS2, Fe1−xS, Co3S4, and (Fe,Co)S2, and the gangue minerals mainly including aluminosilicate minerals. The flotation process was used to recover cobalt and sulfur in the cobalt-bearing V–Ti tailings. The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08%, sulfur content of 36.12%, sulfur recovery of 85.79%, and cobalt recovery and 84.77% were obtained by flotation process of one roughing, three sweeping, and three cleaning under roughing conditions, which employed pulp pH of 8, grinding fineness of < 0.074 mm occupying 80%, flotation concentration of 30%, and dosages of butyl xanthate, copper sulfate, and pine oil of 100 g/t, 30 g/t, and 20 g/t, respectively. Optimized one sweeping, two sweeping, and three sweeping conditions used a pulp pH of 9, and dosages of butyl xanthate, copper sulfate, and pine oil of 50 g/t, 15 g/t, 10 g/t; 25 g/t, 7.5 g/t, 5 g/t; 20 g/t, 5 g/t, 5 g/t, respectively. Optimized one cleaning, two cleaning, and three cleaning condition dosages of sodium silicate of 200 g/t, 100 g/t, 50 g/t, respectively. Study of analysis and characterization of cobalt–sulfur concentrate by X-ray diffraction (XRD), automatic mineral analyzer (MLA), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) showed that the main minerals in cobalt–sulfur concentrate are FeS2, Co3S4 and (Fe,Co)S2, of which FeS2 and (Fe,Co)S2 accounted for 65.64% and Co3S4 for 22.64%. Gangue minerals accounted for 11.72%. The element Co in (Fe,Co)S2 is closely related to pyrite in the form of isomorphism, and the flotability difference between cobalt and pyrite is very small, which makes it difficult to separate cobalt and sulfur. Cobalt–sulfur concentrate can be used as raw material for further separation of cobalt and sulfur in smelting by pyrometallurgical or hydrometallurgical methods.

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Mathematical Simulation of the Process of Nickel Oxide Recovery in a Tube-Type Rotary Kiln

Cited by 2 publications

References 0 publications

Extraction of Nickel from Garnierite Laterite Ore Using Roasting and Magnetic Separation with Calcium Chloride and Iron Concentrate

Extraction of Nickel from Garnierite Laterite Ore Using Roasting and Magnetic Separation with Calcium Chloride and Iron Concentrate

Recovering Cobalt and Sulfur in Low Grade Cobalt-Bearing V–Ti Magnetite Tailings Using Flotation Process

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