2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 6: Rare Earths & Ionic Liquids
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 432 pages |
| ISBN: | 978-1-987820-08-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Extraction of scandium from lateritic nickel ore
Azerif Kaya1; Yavuz Ali Topkaya1;1METU, Ankara, Turkey;
Type of Paper: Regular
Id Paper: 17
Topic: 9
Abstract:
In this laboratory scale research, the extraction of scandium from a lateritic nickel-cobalt-scandium ore was investigated. After the physical, chemical and mineralogical characterization of representative lateritic ore sample, the optimum conditions of sulfuric acid pressure leaching were determined by using a 2-liter titanium autoclave. Temperature and duration of leaching, addition of acid amount, particle size and oxidation-reduction potential (ORP) control by the addition of sulfur were among the parameters studied there. The experimental findings indicated that about 90% of the nickel and cobalt and 80% of the scandium present in the lateritic ore studied could be extracted under the optimum conditions determined experimentally.