nickel ore reduction

nickel ore reduction

Nickel Ore Reduction by Hydrogen and Carbon Monoxide ...

2018-6-9  (1995). Nickel Ore Reduction by Hydrogen and Carbon Monoxide Containing Gases. Mineral Processing and Extractive Metallurgy Review: Vol. 15, No. 1-4, pp.

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Kinetic Studies of the Reduction of Limonitic Nickel Ore ...

2020-4-21  Lateritic nickel ore accounts for 60 to 72 pct of the Ni reserves worldwide and approximately 50 pct of nickel produced in the world comes from this source.[1,2,3,4,5] In general, it can be said that lateritic deposits consist of two primary nickel-bearing layers: (i) saprolite and (ii) limonite.[6,7] Due to the great difference in chemical composition and mineralogical distribution of the ...

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Selective Reduction of Laterite Nickel Ore

Selective Reduction of Laterite Nickel Ore Sungging Pintowantoro+ and Fakhreza Abdul Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember, Arief Rahman Hakim Street, Surabaya, East Java, 60111, Indonesia Nickel is

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Thermodynamics of the Reduction Roasting of

2016-11-4  Limonite, Saprolite, Nickel, Thermodynamics, Reduction 1. Introduction Metallic nickel is primarily obtained from two ore types: nickel sulphide and nickeli-ferous laterite (oxide) ores. Global nickel resources averaging a minimum nickel grade of about 1% contain about 130 million tons of nickel, and the distribution between the

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Gypsum utilization on selective reduction of limonitic ...

Gypsum contains CaSO 4 which can promote the selective reduction of nickel in limonitic laterite nickel ores.. The selectivity effect of nickel was caused by the formation of iron sulfide compounds during the reduction process. • By using a gypsum additive of 12% by

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Research on Selective Reduction of Laterite Nickel Ore by ...

In this paper, thermodynamic analysis on reduction of lateritic nickel ore by CO2/H2 mixed gas was performed based on activity theory. Effects of CO2/H2 ratio and temperature on selective reduction of laterite ore were investigated. The calculation result shows that the metallization of Fe and Ni could be promoted by each other because of the variation of the Fe and Ni activity, which accounts ...

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Reduction of nickel oxide particles by hydrogen studied

2013-1-12  Nickel oxide (NiO) reduction and the subsequent Ni behaviour in hydrogen gas (H 2) are of practical importance in the fields of catalysis [1–5], ore reduction to produce metallic Ni [6–9] and solid oxide fuel cells (SOFCs), for which it determines the structure of the electronic con-ductor on the anode side during operation [10, 11]. Despite

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Nickel: smelting, producing-Metalpedia

Nickel: smelting; Extraction and purification; Nickel is recovered through extractive metallurgy: it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75% purity. In many stainless steel applications, 75% pure nickel can be used without further purification, depending on the composition of the impurities.

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FERRONICKEL PRODUCTION AND OPERATION

2015-2-27  Raw lateritic nickel ore samples which were collected from East Anatolian Region were crushed and ground by using respectively a jaw crusher, cone crusher, roller crusher and a vibratory cup mill. Average particle size of the ground ore was calculated as 303 µm by

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Selective Reduction of Laterite Nickel Ore

Selective Reduction of Laterite Nickel Ore Sungging Pintowantoro+ and Fakhreza Abdul Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember, Arief Rahman Hakim Street, Surabaya, East Java, 60111, Indonesia Nickel is

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Thermodynamics of the Reduction Roasting of

2016-11-4  Limonite, Saprolite, Nickel, Thermodynamics, Reduction 1. Introduction Metallic nickel is primarily obtained from two ore types: nickel sulphide and nickeli-ferous laterite (oxide) ores. Global nickel resources averaging a minimum nickel grade of about 1% contain about 130 million tons of nickel, and the distribution between the

Read More
Research on Selective Reduction of Laterite Nickel Ore by ...

In this paper, thermodynamic analysis on reduction of lateritic nickel ore by CO2/H2 mixed gas was performed based on activity theory. Effects of CO2/H2 ratio and temperature on selective reduction of laterite ore were investigated. The calculation result shows that the metallization of Fe and Ni could be promoted by each other because of the variation of the Fe and Ni activity, which accounts ...

Read More
Reduction of nickel oxide particles by hydrogen studied

2013-1-12  Nickel oxide (NiO) reduction and the subsequent Ni behaviour in hydrogen gas (H 2) are of practical importance in the fields of catalysis [1–5], ore reduction to produce metallic Ni [6–9] and solid oxide fuel cells (SOFCs), for which it determines the structure of the electronic con-ductor on the anode side during operation [10, 11]. Despite

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Influence of laterite nickel ore on extracting iron from ...

2021-3-19  In view of the difficulty of extracting iron from Bayer red mud, a new idea of adding laterite nickel ore into red mud was proposed to prepare a high value-added product. Toward this, the influences of laterite nickel ore on thermodynamic reaction, slagging and smelting reduction of extracting iron from red mud were studied. The results indicated that the product of extracting iron from red ...

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Nonmolten state metalized reduction of saprolitic laterite

2020-2-7  Laterite ore is an important raw nickel ore resource, and methods for extracting valuable metals from low-nickel saprolitic laterite has not been fully developed. This paper proposes a technology, called nonmolten state metalized reduction (NSMR), for ...

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Nickel laterite Part 1 – microstructure and phase ...

2016-12-5  Nickel laterite Part 1 – microstructure and phase characterisations during reduction roasting and leaching M. A. Rhamdhani*1, P. C. Hayes2 and E. Jak2 Detailed microstructure and phase characterisations of processed nickel laterite ore feed, reduced ore and leached ore have been carried out using scanning electron microscope,

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NICKEL AND COBALT ORES: FLOTATION

2016-6-7  ores is through the production of nickel matte after enriching the nickel content of the ore. This is com-monly carried out by magnetic separation, Sotation, or a combinationof both after the ore is comminuted to below 200 m in size. The enrichment depends upon the degree of rejection of the other sulRde and non-sulRde gangue. The maximum grade ...

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游志雄-材料科学与工程学院 - 重庆大学 - cqu.edu.cn

2021-10-31  Non-isothermal kinetics study on carbothermic reduction of nickel laterite ore. Powder Technology, 2018, 340: 495-501. (10) Lunwei Wang, Xueming Lv, Mei Liu, Zhixiong You*, Xuewei Lv, Chenguang Bai. Preparation of ferronickel from nickel laterite via coal

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李博 博导(有色金属冶金)-冶金与能源工程学院 - kmust.edu.cn

2020-9-7  [10] Bo Li, Hua Wang, Yonggang Wei, The reduction of nickel from low-grade nickel laterite ore using a solid-state deoxidisation method, Minerals Engineering, 2011, 24(14), 1556-1562 承担国家级

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Selective Reduction of Laterite Nickel Ore

Selective Reduction of Laterite Nickel Ore Sungging Pintowantoro+ and Fakhreza Abdul Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember, Arief Rahman Hakim Street, Surabaya, East Java, 60111, Indonesia Nickel is

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Selective reduction of nickel laterite ores - Allis ...

To prepare nickel laterite ore for selective reduction of its nonferrous metal oxides, it is comminuted (preferably to 85% minus 200 mesh) and is mixed with comminuted (preferably 100% minus 65 mesh) high volatile, high ash waste coal and a non-gaseous sulfur material. Carbon content of the coal is 50% to 150% of the amount of carbon needed for ...

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Thermodynamics of the Reduction Roasting of

2016-11-4  Limonite, Saprolite, Nickel, Thermodynamics, Reduction 1. Introduction Metallic nickel is primarily obtained from two ore types: nickel sulphide and nickeli-ferous laterite (oxide) ores. Global nickel resources averaging a minimum nickel grade of about 1% contain about 130 million tons of nickel, and the distribution between the

Read More
Reduction of nickel oxide particles by hydrogen studied

2013-1-12  Nickel oxide (NiO) reduction and the subsequent Ni behaviour in hydrogen gas (H 2) are of practical importance in the fields of catalysis [1–5], ore reduction to produce metallic Ni [6–9] and solid oxide fuel cells (SOFCs), for which it determines the structure of the electronic con-ductor on the anode side during operation [10, 11]. Despite

Read More
Nickel: smelting, producing-Metalpedia

Nickel: smelting; Extraction and purification; Nickel is recovered through extractive metallurgy: it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75% purity. In many stainless steel applications, 75% pure nickel can be used without further purification, depending on the composition of the impurities.

Read More
Nonmolten state metalized reduction of saprolitic laterite

2020-2-7  Laterite ore is an important raw nickel ore resource, and methods for extracting valuable metals from low-nickel saprolitic laterite has not been fully developed. This paper proposes a technology, called nonmolten state metalized reduction (NSMR), for ...

Read More
Nickel laterite Part 1 – microstructure and phase ...

2016-12-5  Nickel laterite Part 1 – microstructure and phase characterisations during reduction roasting and leaching M. A. Rhamdhani*1, P. C. Hayes2 and E. Jak2 Detailed microstructure and phase characterisations of processed nickel laterite ore feed, reduced ore and leached ore have been carried out using scanning electron microscope,

Read More
NICKEL AND COBALT ORES: FLOTATION

2016-6-7  ores is through the production of nickel matte after enriching the nickel content of the ore. This is com-monly carried out by magnetic separation, Sotation, or a combinationof both after the ore is comminuted to below 200 m in size. The enrichment depends upon the degree of rejection of the other sulRde and non-sulRde gangue. The maximum grade ...

Read More
游志雄-材料科学与工程学院 - 重庆大学 - cqu.edu.cn

2021-10-31  Non-isothermal kinetics study on carbothermic reduction of nickel laterite ore. Powder Technology, 2018, 340: 495-501. (10) Lunwei Wang, Xueming Lv, Mei Liu, Zhixiong You*, Xuewei Lv, Chenguang Bai. Preparation of ferronickel from nickel laterite via coal

Read More
李博 博导(有色金属冶金)-冶金与能源工程学院 - kmust.edu.cn

2020-9-7  [10] Bo Li, Hua Wang, Yonggang Wei, The reduction of nickel from low-grade nickel laterite ore using a solid-state deoxidisation method, Minerals Engineering, 2011, 24(14), 1556-1562 承担国家级

Read More