TY - JOUR
T1 - Extractant and solvent selection to recover zinc from a mining effluent
AU - Avila, M.
AU - Perez, G.
AU - Valiente, M.
PY - 2011/5/1
Y1 - 2011/5/1
N2 - The feasibility of three commercial extractants (DEHPA, Cyanex 272, and Ionquest 290) has been assessed for the recovery of Zn from an acidic mine effluent. Less than 5 min are required to reach equilibrium for the studied extractants. Regarding selectivity, DEHPA extracted efficiently Zn, Ca, Mn, and Al, although Al remained in the solvent extract after stripping, hindering the solvent reuse. Neither Ionquest 290 nor Cyanex 272 extract Al, Cu, Mn, or Ca significantly. Ionquest 290 recovery of Zn is 5-10% higher than Cyanex 272. In addition, 20%(v/v) Ionquest 290 produces higher recoveries than 40%(v/v) DEHPA, thus Ionquest 290 has been selected as the most suitable among the extractants studied. © Taylor & Francis Group, LLC.
AB - The feasibility of three commercial extractants (DEHPA, Cyanex 272, and Ionquest 290) has been assessed for the recovery of Zn from an acidic mine effluent. Less than 5 min are required to reach equilibrium for the studied extractants. Regarding selectivity, DEHPA extracted efficiently Zn, Ca, Mn, and Al, although Al remained in the solvent extract after stripping, hindering the solvent reuse. Neither Ionquest 290 nor Cyanex 272 extract Al, Cu, Mn, or Ca significantly. Ionquest 290 recovery of Zn is 5-10% higher than Cyanex 272. In addition, 20%(v/v) Ionquest 290 produces higher recoveries than 40%(v/v) DEHPA, thus Ionquest 290 has been selected as the most suitable among the extractants studied. © Taylor & Francis Group, LLC.
KW - Cyanex 272
KW - DEHPA
KW - Ionquest 290
KW - Mining effluent
KW - Solvent extraction
KW - Zinc
UR - https://www.scopus.com/pages/publications/79957826198
U2 - 10.1080/07366299.2011.573434
DO - 10.1080/07366299.2011.573434
M3 - Article
SN - 0736-6299
VL - 29
SP - 384
EP - 397
JO - Solvent Extraction and Ion Exchange
JF - Solvent Extraction and Ion Exchange
ER -