Thermodynamic properties of molten sulfides: Part III. The system Cu-Ni-S

Lee, Sang L.; Larrain, Jose M.; Kellogg, Herbert H.

doi:10.1007/bf02668409

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…The sulfur activity data in the matte measured by several authors [98][99][100][101][102] using the equilibration method for different metal ratios are generally in good agreement. The more consistent and numerous data are those of Lee et al, [101,102] which number more than 95.…”

Section: B Copper-nickel-sulfur Systemmentioning

confidence: 58%

“…The more consistent and numerous data are those of Lee et al, [101,102] which number more than 95. The data given by Bale, [24] obtained with the thermogravimetric method, are in very good agreement with the data of Lee et al The comparison between the model predictions and the data of Lee et al is presented in Figures 15 through 17.…”

Section: B Copper-nickel-sulfur Systemmentioning

confidence: 67%

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Thermodynamic modeling of liquid Fe-Ni-Cu-Co-S mattes

Kongoli

Pelton

Dessureault³

1998

Metall Mater Trans B

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The modified quasichemical model for short-range ordering is described for liquid metal-sulfur solutions. Available thermodynamic data for molten Fe-S, Ni-S, Cu-S, and Co-S solutions are collected, critically evaluated, and optimized by means of the model. Very good descriptions of the thermodynamic properties are obtained with few parameters. Using only these binary parameters, the model predicts the thermodynamic properties of Fe-Ni-S, Fe-Cu-S, Ni-Cu-S, and Fe-Ni-Cu-S mattes over a wide range of composition and temperature within experimental error limits.

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Section: B Copper-nickel-sulfur Systemmentioning

confidence: 58%

Section: B Copper-nickel-sulfur Systemmentioning

confidence: 67%

Thermodynamic modeling of liquid Fe-Ni-Cu-Co-S mattes

Kongoli

Pelton

Dessureault³

1998

Metall Mater Trans B

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“…Медно-никелевый файнштейн -это сложная система Ni-Cu-Fe-Co-S-O, о фазовых равновесиях которой сведения отсутствуют в связи с трудностями моделирования. В мировой практике исследованию более простых систем уделяется достаточно большое внимание [1][2][3][4][5][6][7][8][9]. Расплав файнштейна является гетерогенным и содержит кристаллы оксидной фазы, близкой по составу к магнетиту, распределение которой по объему изложницы неравномерно [10].…”

Section: Effect Of Copper-nickel Matte Ingot Cooling Time On Its Floatation Separation Selectivity Indicatorsunclassified

Effect of copper-nickel matte ingot cooling time on its floatation separation selectivity indicators

Индейкин¹,

Старых

Salimzhanova³

et al. 2020

Izv.VUZ. Tsvet. Met.

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A criterion used to evaluate the efficiency of converter matte foam separation into nickel and copper concentrates is a selectivity index based on the total recoveries of metals into target concentrates that in turn defines their cumulative impurities (secondary metals) content. In addition to various factors (meeting density and reagent flow charts, comminution parameters, etc.), the time of preceding cooling of ingots is also known to have a substantial effect on the process of converter matte separation at commercial scale. Laboratory studies on selective separation were made to evaluate the influence of converter matte crystallization conditions at constant comminution and floatation parameters. Commercial converter matte ingots produced at different cooling rates were ground and floated in the closed circuit under laboratory conditions according to the existing floatation flowsheet. The lab studies allowed to exclude the multifactor nature of the system and to examine the commercial converter separation process only from the viewpoint of converter matte melt cooling rate since the other factors were kept constant during the laboratory tests. The temperature field in the body of the converter matte ingot was measured during its cooling in the conditions of the current production – this is reflected in the chemical and phase composition of various ingot sections. The temperature of the ingot, due to its massiveness, varies considerably throughout the material volume. A small change in the ingot surface temperature can be accompanied by significant changes in the temperature in its body. The measurement results showed that the temperature gradient from the center to the periphery of the ingot exceeds400 °C. In this regard, reducing the time of converter matte cooling can lead to significant violations of the cooling mode in the central zones of the ingot. In accordance with the optical mineralogical analysis of samples, the longer was the ingot cooling time, the higher was its decrystallization implying the formation of coarse-particle structures of copper and nickel sulfides with sharp interface boundaries. The chemical analysis revealed that the highest possible selectivity index of converter matte copper and nickel separation with resulting copper and nickel sulfide concentrates, respectively, is reached after 72 h of cooling for converter matte ingots from the smelting shop of the Nadezhdinsky Metallurgical Plant.

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Nickel

Kerfoot

2000

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 1.1. History 1.2. Physical Properties 1.3. Chemical Properties 2. Occurrence 2.1. Nickel Minerals 2.2. Sulfide Ores 2.3. Oxide Ores 2.4. Economic Trends 3. Beneficiation of Nickel Sulfide Ores 4. Pyrometallurgy of Nickel Concentrates 4.1. Roasting 4.2. The Smelting Process 4.2.1. Primary Smelting 4.2.2. Matte Converting 4.3. Environmental Aspects of Nickel Smelting 4.4. Treatment of Converter Matte 4.4.1. Inco Matte Separation Process 4.4.2. Fluidized‐Bed Roasting of Nickel Sulfide 5. Hydrometallurgy of Nickel Concentrates and Mattes 5.1. Ammonia Pressure Leaching 5.2. Atmospheric Acid Leaching 5.3. Acid Pressure Leaching 5.4. Chloride Leach Processes 5.5. Treatment of Nickeliferous Pyrrhotite 6. Nickel Refining 6.1. Electrorefining 6.1.1. Refining of Nickel Metal Anodes 6.1.2. Refining of Nickel Matte Anodes 6.1.3. Solution Purification 6.1.4. Electrorefining Operations 6.2. Electrowinning 6.2.1. Electrowinning from Sulfate Electrolytes 6.2.2. Electrowinning from Chloride Electrolytes 6.3. Carbonyl Refining 6.3.1. Atmospheric Pressure Carbonyl Process 6.3.2. High‐Pressure Carbonyl Process (BASF) 6.3.3. Inco Pressure Carbonyl Process 6.4. Hydrogen Reduction to Nickel Powder 7. Beneficiation of Oxide Ores 7.1. The Nippon Yakin Oheyama Process 7.2. Segregation Processes 8. Pyrometallurgy of Oxide Ores 8.1. Ore Pretreatment 8.2. Smelting to Ferronickel 8.2.1. The Rotary Kiln ‐ Electric Furnace Process 8.2.2. The Ugine Ferronickel Process 8.2.3. The Falcondo Ferronickel Process 8.2.4. Refining of Ferronickel 8.3. Smelting to Nickel Matte 8.3.1. Blast Furnace Smelting 8.3.2. Matte Production from Ferronickel 8.3.3. The Inco Selective Reduction Smelting Process 8.4. Energy Consumption in Laterite Smelting 9. Hydrometallurgy of Oxide Ores 9.1. The Caron Process 9.2. Pressure Leaching with Sulfuric Acid 9.2.1. The Moa Bay Process 9.2.2. The Amax Acid Leach Process 10. The Recovery of Byproduct Cobalt 11. Nickel Recovery from Secondary Sources 12. Market Products 13. Uses 14. Economic Aspects 15. Toxicology

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Thermodynamic properties of molten sulfides: Part III. The system Cu-Ni-S

Cited by 12 publications

References 5 publications

Thermodynamic modeling of liquid Fe-Ni-Cu-Co-S mattes

Thermodynamic modeling of liquid Fe-Ni-Cu-Co-S mattes

Effect of copper-nickel matte ingot cooling time on its floatation separation selectivity indicators

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