2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 1. Barrios Intl. Symp. / Non-ferrous Smelting & Hydro/Electrochemical Processing
| Editors: | Kongoli F, Palacios M, Buenger T, Meza JH, Delgado E, Joudrie MC, Gonzales T, Treand N |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 264 pages |
| ISBN: | 978-1-987820-61-4 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Peculiarities of Phase Formation at Metallothermal Interactions in the System Aluminum-zirconium and Silicon Oxides
Sergey Krasikov1;1INSTITUTE OF METALLURGY OF URAL BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES, Ekaterinburg, Russian Federation;
Type of Paper: Regular
Id Paper: 265
Topic: 6
Abstract:
Due to the rich sources reserves of raw materials depletion and the increase in demand for rare and rare-earth metals in such fields of technology as electronics, electrical engineering, metallurgy, and nuclear power, in recent decades the attention of researchers has been attracted to the problem of processing non-traditional rare metal, in particular eudyalite raw materials. Earlier studies of pyrometallurgical processing of eudialyte concentrates containing up to 55% SiO2 and 9 - 17% ZrO2, have shown promising results in the use of aluminothermic reduction. At the same time, it was revealed that the metallothermal process is complex and requires further study. The purpose of this work was to identify the sequence of intermetallic compounds formation during interactions at the Al-ZrO2-SiO2 system. The use of thermodynamic calculations, methods of differential thermal and X - ray phase analysis made it possible to simulate the interaction process in the Al - ZrO2 - SiO2 system and to establish that the prevailing formation of zirconium aluminides will take place at the initial stage at temperatures above 900°C at the aluminothermic co-reduction of zirconium and silicon.
Keywords:
Alloys; Aluminum; Chemical; Development; Heat; Melting; Non-Ferrous; Ores; Oxides; Reduction;References:
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