Abstract
A stream of effluent from a mine tailings pond, containing zinc, ferrous ions and other metals, required treatment to prevent pollution and recover valuable metals. A solvent extraction (SX) process using Ionquest 290 as extractant was developed to recover the Zn from the effluent. Ferrous ions were bio-oxidized and removed by selective alkaline precipitation prior to the zinc extraction. The Fe removal as well as the SX process were developed successfully at laboratory scale and verified in a pilot plant on-site, using two Bateman Pulsed Columns for the extraction and stripping of Zn. The results were satisfactory obtaining above 95% recovery of the Zn. © 2011 Elsevier B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 63-67 |
Journal | Hydrometallurgy |
Volume | 107 |
DOIs | |
Publication status | Published - 1 May 2011 |
Keywords
- Bateman Pulsed Column
- Fe bioxidation removal
- Ionquest 290
- Mine tailing pond
- Zinc extraction