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Relevant bibliographies by topics / Metallothermic reduction

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Dissertations / Theses
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Academic literature on the topic 'Metallothermic reduction'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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Journal articles on the topic "Metallothermic reduction"

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Tyushnyakov, S. N., R. I. Gulyaeva, L. Yu Udoeva, S. V. Sergeeva, and S. A. Petrova. "METALLOTHERMIC REDUCTION OF NATURAL CASSITERITE." Metallurg, no. 7 (2021): 52–61. http://dx.doi.org/10.52351/00260827_2021_07_52.

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Yang, Ming Bo, Hui Li, Wei Zhang, and Tao Zhou. "Investigations about Feasibility of Mg-Sr Master Alloys Production by Metallothermic Reduction of SrO." Advanced Materials Research 403-408 (November 2011): 707–11. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.707.

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In the paper, the feasibility of the Mg-Sr master alloys production by the metallothermic reduction of SrO into magnesium melt was investigated. The results preliminarily indicated that it was feasible to produce the Mg-Sr master alloys by the metallothermic reduction of SrO into magnesium melt. The mechanism about the production of the Mg-Sr master alloys by the metallothermic reduction of SrO into magnesium melt was possibly related to the following reaction: SrO(s) +Mg(l) =[Sr]+MgO(s) . In the further study, the effects of the technological factors such as holding time and holding temperature on the Sr content of the Mg-Sr master alloys produced by the metallothermic reduction of SrO into magnesium melt needed to be considered.

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Okabe, Toru H., and Donald R. Sadoway. "Metallothermic reduction as an electronically mediated reaction." Journal of Materials Research 13, no. 12 (1998): 3372–77. http://dx.doi.org/10.1557/jmr.1998.0459.

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The commonly held view that metallothermic reduction is strictly a chemical reaction and that the process is rate limited by mass transfer has been found to be incomplete. In a study of the production of tantalum powder by the reaction of K2TaF7 with sodium, it has been shown that there are two dominant kinetic pathways, both involving electron transfer. Furthermore, the overall rate of reaction is limited by electron transport between the reactants. This indicates that metallothermic reduction is an “electronically mediated reaction” (EMR). Experiments found that the location of the tantalum deposit and its morphology are governed by the reaction pathway.

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Lee, Dong-Won, Sang-Hyun Heo, Jong-Taek Yeom, and Jei-Pil Wang. "Extraction of Vanadium Powder by Metallothermic Reduction." Journal of Korean Powder Metallurgy Institute 20, no. 1 (2013): 43–47. http://dx.doi.org/10.4150/kpmi.2013.20.1.043.

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Yasuda, Kouji, and Toru H. Okabe. "Solar-grade silicon production by metallothermic reduction." JOM 62, no. 12 (2010): 94–101. http://dx.doi.org/10.1007/s11837-010-0190-8.

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Yang, Ming Bo, Hui Li, Wei Zhang, and Tao Zhou. "Effects of Holding Time and Temperature on Sr Content of Mg-Sr Master Alloys Produced by Metallothermic Reduction of SrO." Advanced Materials Research 403-408 (November 2011): 20–23. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.20.

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In the paper, the effects of the holding time and temperature on Sr content of the Mg-Sr master alloys produced by the metallothermic reduction of SrO into magnesium melt were investigated. The results preliminarily indicated that effects of the holding time and temperature on the Sr content of the Mg-Sr master alloys produced by the metallothermic reduction of SrO into magnesium melt were relatively obvious. For a given experimental conditions: magnesium melt of ~10 kg and powder flow rate to carrier gas flow rate ratio of 20 g SrO/min / 15 L Ar/min, with the increasing of holding time from 30min to 150 min at 800 °C or holding temperature from 700°C to 850 °C for 90 min, the Sr content of the Mg-Sr master alloy increased gradually. Obviously, the long holding time or high holding temperature was beneficial to produce Mg-Sr master alloys with high Sr content by the metallothermic reduction of SrO into magnesium melt.

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Zhu, Hongmin, and Donald R. Sadoway. "Synthesis of nanoscale particles of Ta and Nb3Al by homogeneous reduction in liquid ammonia." Journal of Materials Research 16, no. 9 (2001): 2544–49. http://dx.doi.org/10.1557/jmr.2001.0348.

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The analysis of metallothermic reduction as an electronically mediated reaction predicted that the particle size of solid product could be reduced if the reaction were conducted in a medium that is a mixed conductor (ionic and electronic). This prediction was confirmed by reacting TaCl5 with sodium, each dissolved in liquid ammonia, to produce tantalum powder having an average particle size over an order of magnitude finer than the micron-sized powders produced commercially today. Metallothermic reduction in a mixed conducting medium has been extended to a multicomponent system in order to synthesize nanosized powder of Nb3Al by co-reduction of NbCl5 and AlCl3 both dissolved in liquid ammonia.

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Lin, Ning, Ying Han, Jie Zhou, et al. "A low temperature molten salt process for aluminothermic reduction of silicon oxides to crystalline Si for Li-ion batteries." Energy & Environmental Science 8, no. 11 (2015): 3187–91. http://dx.doi.org/10.1039/c5ee02487k.

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Nishiyama, Katsuhiro, Takanobu Nakamur, Shigenori Utsumi, Hideki Sakai, and Masahiko Abe. "Preparation of ultrafine boride powders by metallothermic reduction method." Journal of Physics: Conference Series 176 (June 1, 2009): 012043. http://dx.doi.org/10.1088/1742-6596/176/1/012043.

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Setoudeh, N., and N. J. Welham. "Metallothermic reduction of zinc sulfide induced by ball milling." Journal of Materials Science 52, no. 11 (2017): 6388–400. http://dx.doi.org/10.1007/s10853-017-0873-4.

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Dissertations / Theses on the topic "Metallothermic reduction"

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Yilmaz, Serkan. "Optimization Of Conditions Of Metallothermic Reduction Of Rare Earth Preconcentrates." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608189/index.pdf.

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Rare earth ferrosilicon alloy is an important additive for ferrous metallurgy. It is mainly used to control the detrimental effects of sulfur in steel and to modify graphite structures in cast iron. The aim of this study was to optimize the conditions for the production of rare earth ferrosilicon alloy by metallothermic reduction process using a preconcentrate prepared from a bastnasite type of ore present in the Beylikahir-EskiSehir region of Turkey. In this study, the rare earth preconcentrate was reduced by aluminum together with ferrosilicon and rare earth ferrosilicon alloys were produced. The optimum conditions of reduction, which are time, temperature, reducer amounts and the basicity of the slag phase, were investigated by smelting in an induction furnace. At the end of the study, a rare earth ferrosilicon alloy containing 39.3 % rare earths, 37.5 % silicon, 19.3 % iron and 3.9 % aluminum was produced under the optimum conditions determined with 57.7 % rare earth metal recovery.

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Turgay, Ogul Can. "The Optimization Of Experimental Conditions For Production Of Rare Earth Ferrosilicon Alloy." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1096999/index.pdf.

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Rare earth ferrosilicon is a versatile alloy mainly used to control the detrimental effects of sulfur in steel and to modify graphite structures in cast iron. The aim of this study was to optimize the experimental conditions for the production of rare earth ferrosilicon alloy by using a preconcentrate prepared from a bastnasite type of ore present in the Beylikahir-EskiSehir region of Turkey. After unsuccessful initial tests realized with this preconcentrate, however, two batches of rich-rare earth oxide concentrates with different compositions, that were supplied from the Turkish glass producer SiSecam A.S. were utilized in order to investigate the effects of several variables like temperature, duration, amount of reducing agents etc. on the recovery of rare earth metals and the alloy compositions. The findings of these tests were then tested again on the bastnasite preconcentrate. There was no difficulty in obtaining rare earth ferrosilicon alloys containing 35-55 wt % rare earths, 25-40 wt % silicon and 5-25 wt % iron, with about 80 % rare earth metal recovery in the tests made with rich rare earth oxide concentrates, while alloys containing up to 44 wt % rare earths, with 48 % rare earth metal recovery could be produced with the bastnasite preconcentrate.

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Book chapters on the topic "Metallothermic reduction"

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Buğdayci, Mehmet, Murat Alkan, and Onuralp Yücel. "Production of Fe-Based Alloys by Metallothermic Reduction of Mill Scales from Continuous Casting Processes." In 4th International Symposium on High-Temperature Metallurgical Processing. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118663448.ch28.

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Tavadze, Giorgi F., and Alexander S. Shteinberg. "Synthesis of Elemental Boron and Its Refractory Compounds by Self-Propagating High-Temperature Synthesis with Metallothermic Reduction." In SpringerBriefs in Materials. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35205-8_1.

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Okabe, Toru H. "Metallothermic reduction of TiO2." In Extractive Metallurgy of Titanium. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-817200-1.00008-9.

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Lucas, Jacques, Pierre Lucas, Thierry Le Mercier, Alain Rollat, and William Davenport. "Metallothermic Rare Earth Metal Reduction." In Rare Earths. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-444-62735-3.00007-3.

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Smeets, A. A. J., D. J. Fray, and J. A. Charles. "EQUILIBRIUM THERMODYNAMICS OF THE VACUUM METALLOTHERMAL REDUCTION OF LITHIUM OXIDE AND SPODUMENE." In Proceedings of the International Symposium on Computer Software in Chemical and Extractive Metallurgy. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-08-036087-4.50013-6.

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Conference papers on the topic "Metallothermic reduction"

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Ivanov, V. A., A. S. Dedyukhin, I. B. Polovov, V. A. Volkovich, and O. I. Rebrin. "Fabrication of rare-earth metals by metallothermic reduction: Thermodynamic modeling and practical realization." In PHYSICS, TECHNOLOGIES AND INNOVATION (PTI-2018): Proceedings of the V International Young Researchers’ Conference. Author(s), 2018. http://dx.doi.org/10.1063/1.5055106.

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Osinkina, T. V., S. A. Krasikov, A. S. Russkih, et al. "Influence of conditions for metallothermic reduction of titanium dioxide on the phase formation of titanium aluminides." In THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0032884.

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Reports on the topic "Metallothermic reduction"

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Skone, Timothy J. Metallothermic Reduction of Rare Earth Oxides. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1509083.

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U-AVLIS feed conversion using continuous metallothermic reduction of UF{sub 4}: System description and cost estimate. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10183011.

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