Intensification of the Reverse Cationic Flotation of Hematite Ores with Optimization of Process and Hydrodynamic Parameters of Flotation Cell
| Autor: | O Yu Poperechnikova, E. N. Shumskaya, Inna V. Filippova, Lev Filippov |
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| Rok vydání: | 2017 |
| Předmět: |
History
Materials science medicine.drug_class 02 engineering and technology engineering.material 020501 mining & metallurgy Education 020401 chemical engineering Mining engineering medicine 0204 chemical engineering Mineral processing Metallurgy Cationic polymerization Hematite Computer Science Applications Volumetric flow rate Carboxymethyl cellulose 0205 materials engineering Iron ore visual_art Scientific method visual_art.visual_art_medium engineering Depressant medicine.drug |
| Zdroj: | Journal of Physics: Conference Series. 879:012016 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/879/1/012016 |
| Popis: | The demand of high grade iron ore concentrates is a major issue due to the depletion of rich iron-bearing ores and high competitiveness in the iron ore market. Iron ore production is forced out to upgrade flowsheets to decrease the silica content in the pelettes. Different types of ore have different mineral composition and texture-structural features which require different mineral processing methods and technologies. The paper presents a comparative study of the cationic and anionic flotation routes to process a fine-grain oxidized iron ore. The modified carboxymethyl cellulose was found as the most efficient depressant in reverse cationic flotation. The results of flotation optimization of hematite ores using matrix of second-order center rotatable uniform design allowed to define the collector concentration, impeller rotation speed and air flowrate as the main flotation parameters impacting on the iron ore concentrate quality and iron recovery in a laboratory flotation machine. These parameters have been selected as independent during the experiments. |
| Databáze: | OpenAIRE |
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