About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
Comprehensive Recovery of Elemental Sulfur and Sulfide Minerals from Pressure Acid Leaching Residue of Zinc Sulfide Concentrate with an Integrated Flocculation Flotation-hot Filtration Process |
| Author(s) |
Guiqing Liu, Bangsheng Zhang, Zhonglin Dong, Fan Zhang , Fang Wang, Jintian Wu, Tao Jiang, Bin Xu |
| On-Site Speaker (Planned) |
Guiqing Liu |
| Abstract Scope |
An efficient flocculation flotation-hot filtration process was developed to recover elemental sulfur and sulfide minerals from a pressure acid leaching residue of zinc sulfide concentrate. The particle size distribution of the residue indicated that the portion of thin particle with the size of -37 um reached 67.65% and 36.27% of sulfur in the residue was distributed in this size fraction, necessitating the flocculation flotation for recovering the elemental sulfur and sulfide minerals. 94.59% of the sulfur was recovered with the flotation process of one-time blank rougher, two-time agent-added roughers and two-time blank cleaners with Z-200 as the collector and polyacrylamide as the flocculant. After hot filtration for the flotation concentrate at 145 °C for 2 h, 85.32% of the elemental sulfur in the concentrate was recovered and its product purity reached 98.64%. The filter cake of sulfide minerals can be returned to the leaching stage for zinc recovery. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Sustainability, Process Technology |