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2011-Sustainable Industrial Processing Summit
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Editors: | Florian K |
Publisher: | Flogen Star OUTREACH |
Publication Year: | 2012 |
Pages: | 764 pages |
ISBN: | 978-0-9879917-5-1 |
ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
The copper sulphide ore of Canaã dos Carajás - PA has been benefited by flotation that allows this concentration to reach 30%. The oxidized copper ore that overlaps with sulfide is stripped and stored until they feasibility studies of the recovery of copper by hydrometallurgical route are completed. Currently, we study the application of leaching in stirred tanks, piles and under pressure in autoclaves for the recovery of copper from both the oxidized and the sulfide. Wishing to study the behavior of oxidized copper ore by leaching with sulfuric acid assays were performed on a laboratory scale using for these tests, a sample of ore with content considered high compared to the average content found in the mine. Were collected important data for process optimization, such as acid concentration, solid-liquid ratio, stirring time and the equilibrium isotherm. In presenting this paper, we show the methods used in stirred tanks tests and results. That these data will be used for future testing of the same ore leaching in columns and cells.