2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 11: Recycling & Environmental
| Editors: | Kongoli F, Havlik T, Pagnanelli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 410 pages |
| ISBN: | 978-1-987820-34-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Problems of Zirconium Dioxide Recovery from Concentrate and Tailings
Natalia Tyushkova1;1MOSCOW INSTITUTE OF STEEL AND ALLOYS, Moscow, Russian Federation;
Type of Paper: Regular
Id Paper: 197
Topic: 7
Abstract:
Global demand for zirconium dioxide is actively growing. It is connected with the increase of its consumption not only in ceramic industry but also in high-tech fields. This factor imposes additional requirements on purity in the process of zirconum dioxide cleaning from impurities of phosphorus, silicon, iron and aluminum. This article focuses on the problems of baddeleyite cleaning, which is natural zirconium dioxide. It comprises in kamaforite complex apatite-magnetite ores in alkaline ultrabasic massifs of the Kola Peninsula. This study offers a technological solution to the intensification of baddeleyite concentrate and various tailings deep cleaning. With the help of mathematical modeling, it was managed to confirm that the mechanical activation is effective for intensifying the process of baddeleyite sulfation in order to clean it of impurities. The use of calculated optimum modes allows to reduce such process parameters as temperature, duration of the process, sulfuric acid consumption and also to determine conditions of the outrunning extraction into the solution of scandium and the main impurities in comparison with zirconium dioxide.
Keywords:
zirconium dioxide; baddeleyite; tailing; intensification; deep cleaning; mechanical activation; the optimum modeReferences:
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