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| Study on magnetic roasting—magnetic separation of a refractory siderite in Yunnan |
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Received:April 13, 2020
Revised:May 19, 2020
Accepted:May 27, 2020
Published Online:January 29, 2021
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| DOI： |
| KeyWord:refractory siderite ore; magnetic roasting; magnetic separation; iron concentrate |
| Author | Institution |
| CHEN Ying-jie |
Kunming University of Science and Technology |
| LU Xian-zhi |
Kunming University of Science and Technology |
| LU Pei-yao |
Kunming University of Science and Technology |
| DING Zhan |
Kunming University of Science and Technology |
| YU Pan |
Kunming University of Science and Technology |
| BAI Shao-jun |
Kunming University of Science and Technology |
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| Abstract: |
| Study on magnetization—magnetic separation was carried out on a refractory siderite in Yunnan. In laboratory scale, the recommend parameters are as follows: a roasting temperature of 1050 ℃; a roasting duration of 120 min, a mass ratio of coal to ore of 3:20, a mass ratio of addition agent to ore of 1:10, and a fineness of 90% -0.074 mm for weak magnetic separation. Finally, a favorable result was obtained. The concentration grade and recovery reached 70.22% and 83.67%%, respectively. On the basis of the bench-scale tests, the half industry test was conducted and a concentrate with 75.03% Fe, at a recovery of 81.91% was obtained. The present study provided a reference for the beneficiation of similar refractory siderite ore. |
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