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Manganese extraction by reduction–acid leaching from low-grade manganese oxide ores using CaS as reductant
| Content Provider | Semantic Scholar |
|---|---|
| Author | Li, Chang-Xin Zhong Wang, Shuai Xue, Jianrong Wu, Fang-Fang Zhang, Zhen-Yu |
| Copyright Year | 2015 |
| Abstract | Abstract The extraction of manganese from low-grade manganese oxide ores using CaS derived from CaSO 4 as reductant was investigated. The effects of mass ratio of CaS to ore, reduction temperature, reduction time, liquid to solid ratio (L/S ratio), stirring speed, leaching temperature, leaching time and H 2 SO 4 concentration on the leaching rates of Mn and Fe during the reduction–acid leaching process were discussed. The leaching rates of 96.47% for Mn and 19.24% for Fe were obtained under the optimized conditions of mass ratio of CaS to manganese oxide ore 1:6.7, L/S ratio 5:1, stirring speed 300 r/min, reduction temperature of 95 °C for 2.0 h in the reduction process and leaching stirring speed of 200 r/min, H 2 SO 4 concentration of 1.5 mol/L, leaching temperature of 80 °C for 5 min in the leaching process. In addition, this process can be employed in the recovery of manganese from various manganese oxide ores, and Mn leaching rate above 95% is obtained. |
| Starting Page | 1677 |
| Ending Page | 1684 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/S1003-6326(15)63772-4 |
| Volume Number | 25 |
| Alternate Webpage(s) | http://www.ysxbcn.com/down/2015/05_en/39-p1677.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/S1003-6326%2815%2963772-4 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
