Journal article
The screening of extractants for the separation of Zn(II) from Australian hot-dip galvanizing effluent
SJ Cook, JM Perera, GW Stevens, SE Kentish
Separation Science and Technology | TAYLOR & FRANCIS INC | Published : 2011
Abstract
In this study, the most appropriate organic phase for the selective extraction of Zn(II) from Australian hot-dip galvanizing effluent streams has been determined. TBP (tributyl phosphate) and Hostarex A226 (diisotridecylamine) were identified as the most favourable for the extraction of zinc ions from a chloride matrix. Two alternatives, Hostarex A324 (tri-iso-octlyamine) and Hostarex A327 (tri-n-octyl/n-decylamine), were also tested. Laboratory scale shake tests were conducted using model solutions containing a range of acid concentrations and zinc concentrations up to 80 g/L. Industrial pickling effluent was used to test the effect of impurities present. The use of TBP was confirmed as the..
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Funding Acknowledgements
The authors acknowledge the Australian Research Council and Industrial Galvanisers Corporation for financial support. Technical advice from Peter Hetherington of Industrial Galvanizers is particularly appreciated. We also thank the Particulate Fluid Processing Centre, an ARC special research centre, for infrastructure support.