2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 4: Meech Intl. Symp. / Mining Operations
| Editors: | Kongoli F, Veiga MM, Anderson C |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 275 pages |
| ISBN: | 978-1-987820-27-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Evaluation of Concentration of a Friable Itabirite Iron Ore by Magnetic Separation and Spiral Concentrator
Roberto Galery1; Antonio Peres2; Kelly Ferreira1;1UFMG, Belo Horizonte, Brazil; 2ENGINEERING FACULTY FEDERAL UNIVERSITY OF MINAS GERAIS, Belo Horizonte, Brazil;
Type of Paper: Regular
Id Paper: 385
Topic: 4
Abstract:
The achievement for products with high quality has conducting the mining industry to search new routes of technological process. In this context, the concentration of a typical friable itabirite iron ore was evaluated in Brazil with the aim to investigate the potential concentration by magnetic separation and spiral concentrator. Two different samples were tested, one composed by drillcores intervals from geological drillholes and a large outcrop sample. The energy consumption was determined in a bench scale test using Rowland equation to small size mills. The friable ore achieves an outstanding performance for both spiral and magnetic concentration, obtaining a final concentrate of 68,7% and 67,8% iron grade for the drillcores intervals. The energy consumption was considered very low and the evaluation shows that from a sample with 45%>1,0 mm to obtain a grinding product with 8%>1,0 mm, 3,94 Kwh/t were required.