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| Study on Flotation of Scrubbing Tailings of a Phosphate Rock in Yunnan province |
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Received:November 06, 2020
Revised:November 20, 2020
Accepted:December 16, 2020
Published Online:May 13, 2021
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| DOI： |
| KeyWord:Phosphate rock; Scrubbing tailings; Flotation |
| Author | Institution |
| WANG Jingming |
Yunnan Phosphate Chemical Group Haikou Phosphorus Co,Ltd |
| ZHANG Bo |
Yunnan Phosphate Chemical Group Haikou Phosphorus Co,Ltd |
| ZHENG Yongxing |
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology |
| NING Jilai |
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology |
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| Abstract: |
| The grinding-direct flotation tests of a scrubbing tailings with high silicon, low magnesium and low phosphorus were carried out. The tailings were stockpiled in a mine in Yunnan province. The optimum grinding fineness was determined as -0.074mm that accounted for 92.21%. Dosage of sodium carbonate, sodium silicate and YP6-3 were determined as 2.4 kg/t, 5.6kg/t, 3.6kg/t, respectively. The closed-circuit flotation tests, which consisted of one stage rougher, one stage cleaner and the middlings that are returned to the rougher, were carried out. A concentrate containing 28.53% P2O5 with a yield of 40.44% and a recovery of 68.31% was obtained and the flotation process was very stable. It was promising to achieve secondary utilization of the existing tailings. |
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