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Effects of Galvanic Interaction between Chalcopyrite and Monoclinic Pyrrhotite on Their Flotation Separation
| Content Provider | MDPI |
|---|---|
| Author | Yang, Liu Zhou, Xiaowen Yan, Huashan Zhang, Hongliang Liu, Xiaohe Qiu, Tingsheng |
| Copyright Year | 2021 |
| Description | The galvanic interaction between chalcopyrite and monoclinic pyrrhotite and its effect on flotation separation were studied using monomineral flotation tests, adsorption capacity tests, X-ray photoelectron spectroscopy (XPS) characterization, and scanning electron microscopy (SEM) test. These results showed that the interaction promoted the reduction of $O_{2}$ on the cathodic chalcopyrite surface and accelerated the generation of $Fe(OH)_{3}$, which was not conducive to collector adsorption; hence, the flotation recovery decreased by 10–16%. On the other hand, galvanic interaction accelerated the oxidation of S on the anodic monoclinic pyrrhotite surface to $S_{0}$ or SO_{4}$^{2}$− and produced a large amount of $H^{+}$, thus preventing the formation of $Fe(OH)_{3}$. Meanwhile, the $Cu^{2+}$ eluted from chalcopyrite surface activated monoclinic pyrrhotite; hence, the flotation recovery increased by 3–10%. Galvanic interaction reduced the floatability difference between the two minerals, and the separation difficulty was significantly increased. Even with an increase in the amount of lime, the separation could not be improved. |
| Starting Page | 39 |
| e-ISSN | 2075163X |
| DOI | 10.3390/min12010039 |
| Journal | Minerals |
| Issue Number | 1 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-28 |
| Access Restriction | Open |
| Subject Keyword | Minerals Mining and Mineral Processing Chalcopyrite Monoclinic Pyrrhotite Galvanic Interaction Flotation Interactive Influence |
| Content Type | Text |
| Resource Type | Article |
