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| Study on Goethite Deironization from Bioleaching Solution of Cu-Co Ore |
| Received:September 06, 2012 Revised:September 07, 2012 |
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| DOI：10.3969/j.issn.1007-7545.2013.03.001 |
| KeyWord:Cu-Co ore; bioleaching solution; goethite; deironization process |
| Author | Institution |
| Guobao Chen |
东北大学材料与冶金学院 |
| Hongying Yang |
东北大学材料与冶金学院 |
| Lijie zhou |
东北大学材料与冶金学院 |
| Haijun Li |
东北大学材料与冶金学院 |
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| Abstract: |
| The iron was removed from Cu-Co ore bioleaching solution after copper extraction with goethite process. The parameters of pH value, concentration of oxidant, oxidation time and deironization time were optimized. The results show that the iron removal rate and cobalt recovery rate are 99.9% and 99.5% respectively under the optimum conditions including pH of 4.0, oxidation temperature of 70 ℃, holding time of 1 h, and concentration of oxidant of 8%. The goethite deironization process can be conducted at atmospheric pressure, low temperature (70 ℃) and without addition of other metal ions. The precipitation slag is rich of iron and has good filterability. |
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