Refining of Niobium by Levitation Melting Technique
The refining behavior of niobium, produced by an aluminothermic reduction reaction of Nb/sub 2/O/sub 5/, is studied using an electromagnetic levitation and melting technique. Under experimental conditions, significant refinement of niobium thermite occurs during levitation melting. Residence time pl...
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| Veröffentlicht in: | J. Met.; (United States) 1985-04, Vol.37 (4), p.22-26 |
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| container_title | J. Met.; (United States) |
| container_volume | 37 |
| creator | Asfahani, R. I. Shahapurkar, D. S. Murty, Y. V. Patchett, J. A. Abbaschian, G. J. |
| description | The refining behavior of niobium, produced by an aluminothermic reduction reaction of Nb/sub 2/O/sub 5/, is studied using an electromagnetic levitation and melting technique. Under experimental conditions, significant refinement of niobium thermite occurs during levitation melting. Residence time plays a significant role in the refining process, and the refining kinetics, during levitation melting, correlate well with the approximate equations for desorption of nitrogen and carbon. The purity of the levitation-melted product is compared to that of niobium processed by the conventional EB drip-melting process. |
| doi_str_mv | 10.1007/BF03259440 |
| format | Article |
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The purity of the levitation-melted product is compared to that of niobium processed by the conventional EB drip-melting process.</description><identifier>ISSN: 1047-4838</identifier><identifier>EISSN: 1543-1851</identifier><identifier>DOI: 10.1007/BF03259440</identifier><language>eng</language><publisher>United States</publisher><subject>360101 - Metals & Alloys- Preparation & Fabrication ; CARBON ; CHALCOGENIDES ; CHEMICAL REACTION KINETICS ; CHEMICAL REACTIONS ; DESORPTION ; ELECTROMAGNETISM ; ELEMENTS ; EQUATIONS ; IMPURITIES ; KINETICS ; LEVITATION ; MAGNETISM ; MATERIALS SCIENCE ; MELTING ; METALS ; NIOBIUM ; NIOBIUM COMPOUNDS ; NIOBIUM OXIDES ; NITROGEN ; NONMETALS ; OXIDES ; OXYGEN COMPOUNDS ; PHASE TRANSFORMATIONS ; PROCESSING ; REACTION KINETICS ; REDUCTION ; REFINING ; REFRACTORY METAL COMPOUNDS ; SEPARATION PROCESSES ; TIME DEPENDENCE ; TRANSITION ELEMENT COMPOUNDS ; TRANSITION ELEMENTS ; ZONE MELTING ; ZONE REFINING</subject><ispartof>J. 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Met.; (United States)</jtitle><date>1985-04</date><risdate>1985</risdate><volume>37</volume><issue>4</issue><spage>22</spage><epage>26</epage><pages>22-26</pages><issn>1047-4838</issn><eissn>1543-1851</eissn><abstract>The refining behavior of niobium, produced by an aluminothermic reduction reaction of Nb/sub 2/O/sub 5/, is studied using an electromagnetic levitation and melting technique. Under experimental conditions, significant refinement of niobium thermite occurs during levitation melting. Residence time plays a significant role in the refining process, and the refining kinetics, during levitation melting, correlate well with the approximate equations for desorption of nitrogen and carbon. The purity of the levitation-melted product is compared to that of niobium processed by the conventional EB drip-melting process.</abstract><cop>United States</cop><doi>10.1007/BF03259440</doi><tpages>5</tpages></addata></record> |
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| issn | 1047-4838 1543-1851 |
| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | 360101 - Metals & Alloys- Preparation & Fabrication CARBON CHALCOGENIDES CHEMICAL REACTION KINETICS CHEMICAL REACTIONS DESORPTION ELECTROMAGNETISM ELEMENTS EQUATIONS IMPURITIES KINETICS LEVITATION MAGNETISM MATERIALS SCIENCE MELTING METALS NIOBIUM NIOBIUM COMPOUNDS NIOBIUM OXIDES NITROGEN NONMETALS OXIDES OXYGEN COMPOUNDS PHASE TRANSFORMATIONS PROCESSING REACTION KINETICS REDUCTION REFINING REFRACTORY METAL COMPOUNDS SEPARATION PROCESSES TIME DEPENDENCE TRANSITION ELEMENT COMPOUNDS TRANSITION ELEMENTS ZONE MELTING ZONE REFINING |
| title | Refining of Niobium by Levitation Melting Technique |
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