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| Theory and Application of Iron Removal with Hematite Precipitation in Hydrometallurgy |
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Received:January 04, 2019
Revised:March 06, 2019
Accepted:March 07, 2019
Published Online:May 17, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.06.001 |
| KeyWord:hydrometallurgy; hematite; separation of zinc and iron; resource utilization of iron |
| Author | Institution |
| HUANG Meng-yang |
云南省能源研究院有限公司 |
| DENG Zhi-gan |
昆明理工大学 |
| ZHU Bei-ping |
云锡文山锌铟冶炼有限公司 |
| WEI Chang |
昆明理工大学 冶金与能源工程学院 |
| ZENG Peng |
云南云铜锌业股份有限公司 |
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| Abstract: |
| How to realize effective separation of zinc and iron are the key technologies of marmatite processing. Hematite precipitation process for iron removal is an effective way to realize high efficient separation of zinc and iron. Basic principle and kernel technology of hematite process and thermodynamic stability of hematite area are expounded. Crystallization and dissolution features, and transformation rules of ferrous sulfate crystal are investigated. Oxidation & hydrolysis reaction mechanism are analyzed. Rule of fine grain in terms of its nucleation, growth, reunion and grow-up, and characteristics of ore phase transition during hematite precipitation process are summarized. Application status of hematite precipitation process at home and abroad is expounded. |
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