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carbothermic reduction of ferrovanadium

(PDF) Preparation of high quality ferrovanadium nitride by ...

Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process January 2017 Journal of Mining and Metallurgy Section B Metallurgy 53(00):25-25

The production of ferrovanadium in a plasmacan furnace ...

1988-1-1 · Ferrovanadium production by plasma carbothermic reduction of vanadium oxide, 34th Electrical Furnace Conf., St. Louis, Mo. Naden, D., P. Kershaw, and K. Parkin (1985). Davy McKee development of integrated ore pre-reduction and d.c. transferred arc plasma smelting technology for iron and ferroalloys production, Proc. of the Ext. Met. Symp. of ...

Preparation of high quality ferrovanadium nitride by ...

2017-10-29 · High quality ferrovanadium nitride was prepared successfully by carbothermal reduction nitridation process by using V 2 O 5 and Fe as the raw materials. The effects of reaction temperature and C/O molar ratio (content of O is defined as the oxygen in V 2 O 5) on the quality of ferrovanadium nitride were investigated in detail.

A Novel Process to Synthesize High-Quality

2016-8-23 · In this study, a new and facile approach, based on the carbothermic reduction of V 2 O 5 and Fe 2 O 3 under nitrogen atmosphere at 1673 K to 1873 K (1400 °C to 1600 °C), has been researched in detail to prepare high-quality ferrovanadium nitride. Compared with traditional methods, this method is a short process, which avoids the production of ...

Synthesis of high-quality ferrovanadium nitride by ...

2020-6-4 · High-quality ferrovanadium nitride (FeV45N, FeV55N and Fe65N) was fabricated using the raw materials of Fe3O4, V2O5 and graphite via carbothermal reduction nitridation method. Compared with the traditional methods, it shortens the production process of ferrovanadium nitride by avoiding the preparation of ferrovanadium. The effects of C/O molar ratio and reaction temperature on phase

Synthesis of high-quality ferrovanadium nitride by ...

2021-6-11 · 摘要 High-quality ferrovanadium nitride (FeV45N, FeV55N and Fe65N) was fabricated using the raw materials of Fe 3 O4, V 2 O 5 and graphite via carbothermal reduction nitridation method. Compared with the traditional methods, it shortens the production process of ferrovanadium nitride by avoiding the preparation of ferrovanadium.

Production of Ferroalloys - ScienceDirect

2014-1-1 · While the carbothermic reduction process is feasible as explained briefly above, the bulk of the tonnage of ferromolybdenum is made by the silicothermic reduction process with 75% Si ferrosilicon, using a small proportion of aluminum or calcium–silicon to make it completely self-sustaining and to ensure a good slag–metal separation ...

Carbothermic Reduction - an overview | ScienceDirect Topics

Carbothermic reduction is the most widely used process for preparing nitride fuel. The starting material is a dioxide and carbon, and the general reaction is expressed as. [I] MO 2 + 2 C + 0. 5 N 2 = MN + 2 CO. where M represents an actinide element, such as U and Pu. The mixture of dioxide and carbon is heated in N 2 gas stream, usually at ...

A Process Model for the Carbothermic Reduction of

carbothermic reduction of the MnO-containing molten sili-cate slag.1) The carbothermic reduction of MnO from silicate slags has been studied from different points of view over the past decades. A vast quantity of thermodynamic data for man-ganese alloys and slag systems have been determined ex-

Production of Ferronickel and Ferrovanadium from Fly Ash ...

2013-12-20 · This paper describes an application of a new smelting system involving a plasma furnace which makes it possible to smelt concentrate powders, eliminating the necessity for agglomeration or pelletization. The ratio of surface area to volume of concentrate particles is high, which is advantageous with regard to gas/solid reaction kinetics and production rates. Also, fine ores or concentrates ...

AIST - Digital Library

2020-9-24 · Ferrovanadium Production by Plasma Carbothermic Reduction of. Ferrovanadium Production by Plasma Carbothermic Reduction of Vanadium Oxide. Association for Iron & Steel Technology. 186 Thorn Hill Road • Warrendale, PA 15086-7528 USA +1.724.814.3000 • Fax: +1.724.814.3001 • [email protected]

Minerals | Free Full-Text | Carbothermic Reduction of ...

In the present paper, beneficiation of Fe and Mn elements from a ferruginous manganese ore via carbothermic reduction followed by magnetic separation process was investigated in detail. The effects of the experimental parameters were systematically discussed.

Preparation of high quality ferrovanadium nitride by ...

Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process Wu Y.D., Zhang G.H., Chou K.C. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, China email: [email protected] Project: Project of the Fundamental Research Funds for the National Natural Science ...

A Novel Process to Synthesize High-Quality

2016-8-23 · In this study, a new and facile approach, based on the carbothermic reduction of V 2 O 5 and Fe 2 O 3 under nitrogen atmosphere at 1673 K to 1873 K (1400 °C to 1600 °C), has been researched in detail to prepare high-quality ferrovanadium nitride. Compared with traditional methods, this method is a short process, which avoids the production of ...

[PDF] PREPARATION OF HIGH QUALITY FERROVANADIUM

High quality ferrovanadium nitride was prepared successfully by carbothermal reduction nitridation process by using V2O5 and Fe as the raw materials. The effects of reaction temperature and C/O molar ratio (content of O is defined as the oxygen in V2O5) on the quality of ferrovanadium nitride were investigated in detail. It was demonstrated that C/O molar ratio had a great influence on the ...

Minerals | Free Full-Text | Carbothermic Reduction and ...

In this study, the carbothermic reduction and nitridation mechanism of vanadium-bearing titanomagnetite concentrate are investigated in terms of phase transformation, microstructure transformation, and thermodynamic analyses. The differences in the reaction behavior of titanomagnetite and ilmenite in vanadium-bearing titanomagnetite concentrate, as well as the distribution characteristic of V ...

Synthesis of high-quality ferrovanadium nitride by ...

High-quality ferrovanadium nitride (FeV45N, FeV55N and Fe65N) was fabricated using the raw materials of Fe 3 O 4 , V 2 O 5 and graphite via carbothermal reduction nitridation method. Compared with the traditional methods, it shortens the production process of ferrovanadium nitride by avoiding the preparation of ferrovanadium. The effects of C/O molar ratio and reaction temperature on phase ...

Experimental Study on Strengthening Carbothermic ...

2020-2-28 · The effects and reduction mechanisms of carbothermic reduction of vanadium–titanium–magnetite were studied by adding various mass fractions of CaF 2 ranging from 0%, 1%, 3%, 5% to 7%. The results showed that the proper CaF 2 addition could strengthen the carbothermic reduction of vanadium–titanium–magnetite while the excessive amounts will weaken the promotive

Vacuum Carbothermic Reduction of Alumina

2016-3-1 · Bin, and Dai 2011). The direct vacuum carbothermic reduction has also been applied to the alumina contained in bauxite (Goldin et al. 1998; Yang et al. 2010; Halmann, Epstein, and Steinfeld 2012b). In a study of the vacuum carbothermal processing of low-iron bauxite, a mixture of calcined bauxite and charcoal heated up to 1600 Cat

(PDF) Carbothermic reduction of alumina: A review of ...

Carbothermic reduction of alumina: Al 2 O 3 (s) + 3C(s) → 2 A l(l) +3CO(g), is known to occur at temperatures ~2400-2500 • C, producing a gaseous mixture of aluminium suboxides, aluminium ...

AIST - Digital Library

2020-9-24 · Ferrovanadium Production by Plasma Carbothermic Reduction of. Ferrovanadium Production by Plasma Carbothermic Reduction of Vanadium Oxide. Association for Iron & Steel Technology. 186 Thorn Hill Road • Warrendale, PA 15086-7528 USA +1.724.814.3000 • Fax: +1.724.814.3001 • [email protected]

Preparation of high quality ferrovanadium nitride by ...

Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process Wu Y.D., Zhang G.H., Chou K.C. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, China email: [email protected] Project: Project of the Fundamental Research Funds for the National Natural Science ...

Synthesis of high-quality ferrovanadium nitride by ...

2021-4-25 · Synthesis of high-quality ferrovanadium nitride by carbothermal reduction nitridation method: Ying‑cong Zhou 1, Yu Wang 1, Kuo‑chih Chou 1, Guo‑hua Zhang 1: 1 State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China

[PDF] PREPARATION OF HIGH QUALITY FERROVANADIUM

High quality ferrovanadium nitride was prepared successfully by carbothermal reduction nitridation process by using V2O5 and Fe as the raw materials. The effects of reaction temperature and C/O molar ratio (content of O is defined as the oxygen in V2O5) on the quality of ferrovanadium nitride were investigated in detail. It was demonstrated that C/O molar ratio had a great influence on the ...

Preparation of high quality ferrovanadium nitride by ...

Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process (naslov ne postoji na srpskom) Wu Y.D., Zhang G.H., Chou K.C. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, China ...

Products of carbothermic reduction of Fe Cr O and Fe O

2014-5-6 · reduction of Fe−Cr−O and Fe−Ni−O systems and suggested that the existence of Cr/Ni significantly affected the rate of Fe2O3 reduction. TAKANO et al [9] studied the carbothermic reduction of chromites (i.e. coexisting iron and chromium oxides) in self-reducing agglomerates and discussed the possible rate controlling step.

Carbothermic reduction of mechanically activated NiO ...

2018-12-27 · Reduction of nickel oxide by graphite during ball milling at both ambient and elevated temperatures has been studied by Yang and McCormick [25]. Their results showed that milling significantly reduced the critical reaction temperature for reduction [25]. There are many research works about the carbothermic reduction of nickel oxide. However, the

黄润(冶金) - gzu.edu.cn

2016-9-12 · Vacuum Carbothermic Reduction of Panzhihua Ilmenite Concentrate: A Thermodynamic Study. Mineral Processing & Extractive Metallurgy Review, 2017, 38(3), 193-198. 8. Huang Run, Liu Pengsheng, Zhang Jinzhu, Yue Yuehui. Effects of9.

Effects of calcium compounds on the carbothermic

Gas analysis showed that there were mainly two processes in the carbothermic reduction of VTC, a solid–solid and a solid–gas reaction. The concentrations of CO and CO_2 were highest when CaCO_3 was added, while that in a roasting system decreased the most when CaCl_2 was added.

Kinetic Evaluation of In-Situ Carbothermic Processing of ...

2021-6-15 · The optimum product of in-situ carbothermic reduction of mixed electrode material at 900 °C, 60 minutes comprises Co, MnO, and Ni (Co: 61.6 pct, Mn: 17.8 pct, Ni: 7.1 pct, O: 13.5 pct) with a saturation magnetization of 102 emu/g.