Carbothermic reactions involve the reduction of substances, often metal oxides (), using carbon as the reducing agent.These chemical reactions are usually conducted at temperatures of several hundred degrees Celsius. Such processes are applied for production of the elemental forms of many elements. The ability of metals to participate in carbothermic reactions can be predicted from Ellingham ...

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Because of its unique characteristics, it is the type of reactor which was used in this work. The process tested in the present study was the carbothermic reduction of vanadium pentoxide to produce ferrovanadium. The raw material used for these tests was a pure (>98%) and very fine ( 3 - 1 0 pm) vanadium pentoxide powder.

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ferrovanadium (Gupta,1992). The methods ofproducing ferrovanadium are discussed below . 1.2.2. Carbothermic reduction Reduction with carbon is conducted in a submerged-arc furnace. Carbon in the form of coke, coal, "char" or charcoal can be used. Carbothermic reduction is endothermic and so the process is energy intensive.

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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 ...

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12%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 ...

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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

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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.

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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 ...

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High-quality ferrovanadium nitride (FeV45N, FeV55N and Fe65N) was fabricated using the raw materials of Fe3O4, V2O5 and graphite via carbothermal reduction nitridation method.

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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 …

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High quality ferrovanadium nitride was prepared successfully by carbothermal reduction nitridation process by using V2O5 and Fe as the raw materials. ... carbothermic reduction reaction changed ...

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added to steel is principally as the alloy ferrovanadium, even though proprietar alloyy composes d of vanadium carbide, vanadium oxycarbide or vanadium carbonitride are also used for addition. The methods for producing ferrovanadium include carbothermic, silicothermi ancd aluminothermic reductions Vanadiu. m pentoxide is the

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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-

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Ferrovanadium is a master alloy with a vanadium content of at least 50% produced by reduction of the raw materials with carbon or aluminium. The high affinity of vanadium for carbon leads to carbide formation, so that carbothermic reduction can only be used when there is no requirement for vanadium with low carbon content.The reaction of V 2 O 5 with aluminium is self-sustaining and the ...

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The carbothermic reduction process is a mature terrestrial technology using carbon to reduce metal oxides (ores) to produce metals such as iron in blast furnaces and metallurgical grade silicon. The same process can be used to reduce minerals containing various metallic oxides in the lunar and other planetary regolith to produce oxygen.

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