Results 11 to 20 of about 3,128,811 (214)
Carbothermal reduction of bauxite [PDF]
, 2012 The commercial technologies for aluminium production include production of alumina from bauxite by the Bayer process and smelting of alumina to produce aluminium by Hall-Heroult process. The current technology is energy intensive, a major source of greenhouse gas emissions and harmful fluoride emissions.
Yeh, Chun-Hung
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Isothermal carbothermal reduction of synthetic FeTiO3-Fe2O3 solid solutions [PDF]
工程科学学报, 2016 FeTiO3 and FeTiO3-Fe2O3 solid solution systems were synthesized based on the ceramic method. The synthetic FeTiO3-Fe2O3 solid solutions were subjected to isothermal carbothermal reduction experiments at 1150℃ combining with thermodynamic anal-ysis.
XING Xiang-dong +5 more
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Archives of Metallurgy and Materials, 2015 Hexagonal and cubic crystalline aluminum nitride (AlN) particles were successfully synthesized using phenol resin and alpha aluminum oxide (α-Al2O3) as precursors through new solid-gel mixture and carbothermal reduction nitridaton (CRN) process with ...
Mylinh Dang Thy +2 more
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Size Control of Ti4O7 Nanoparticles by Carbothermal Reduction Using a Multimode Microwave Furnace
Crystals, 2018 Utilization of Ti4O7 in applications such as catalyst support calls for control over the size of the Ti4O7 nanoparticles. This can be achieved using a simple process such as carbothermal reduction. In this study, various sizes of Ti4O7 nanoparticles (25,
Jun Fukushima, Hirotsugu Takizawa
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Carbothermal Reduction of Alumina in a Vacuum
Advanced Materials Research, 2010 The carbothermal reduction of alumina in a vacuum was investigated by XRD and thermodynamic analysis. Experiments on mixtures of alumina and graphite in a vacuum furnace at 1743-1843K proved that the residues consisted of Al2O3and C, and the deposits formed on the upper wall of the crucible contained Al4O4C, C, Al4C3 and Al2O3.
Yue Bin Feng, Bin Yang, Yong Nian Dai
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Synthesis of HfB2 Powders by Carbothermal Reduction [PDF]
Journal of Advanced Materials in Engineering, 2020 In this research, solid state carbothermal synthesis of HfB2 Nano powders was investigated. For this purpose, HfO2,H3BO3, carbon active or phenolic resin were used as raw materials for carbothermal reaction.
M. Shirvani, M. Mashhadi, M. Yosofi
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Carbothermal reduction of ilmenite and fayalite
, 1996 In order to eliminate thermodynamic limitations during H₂ and CO reduction processes, a novel carbothermal reduction process is proposed to generate lunar oxygen for propellant and life support on the lunar surface.
Du, Xiaoyang, 1960-
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The Production of Boron Carbide by Carbothermic Reduction [PDF]
High Temperature Materials and Processes, 1996 Carbothermic reduction of boric acid has scientific and economic advantages over other methods of boron carbide production. The strongly endothermic reaction which has a favourable free energy change only at high temperatures is best carried out in a specially designed graphite resistance furnace at temperatures above 2000°C, using boric acid and ...
Goller, G, Toy, C, Tekin, A, Gupta, CK
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Preparation of Neptunium Mononitride by Carbothermic Reduction [PDF]
Journal of Nuclear Science and Technology, 1994 Neptunium mononitride with carbon and oxygen contents of less than 1,000 ppm was prepared by the carbothermic reduction of NpO2 in flowing N2 gas at 1,823 K, followed by the removal of excess carbon in a N2-H2 mixed gas stream at 1,723 K. It is suggested from the present result and also the consideration on the chemical form of residual carbon in ...
SUZUKI, Yasufumi +3 more
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Carbothermic Reduction by Microwave Heating
ISIJ International, 2001 The carbothermic reduction of iron ores is the most important reaction in ironmaking and has been performed mainly in the Blast Furnace. In the last years, several new processes have been proposed as alternatives, and many types of reactors have been tested. The most promising processes are those in which a mixture of iron ore and carbonaceous material
Mouräo, Marcelo Breda +2 more
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