کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
212740 | 462065 | 2011 | 5 صفحه PDF | دانلود رایگان |
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.
Research highlights
► Successful integrated process for Zn recovery (> 95%) from abandon mine tailing pond.
► Selective iron bio-oxidation–precipitation to achieve Fe free effluent (< 1 ppm).
► Pilot plant demonstrating feasibility for Zn recovery for tailing valorization.
Journal: Hydrometallurgy - Volume 107, Issues 3–4, May 2011, Pages 63–67