Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5480443 | Journal of Cleaner Production | 2017 | 12 Pages |
Abstract
The study shows that four media - 10% aqua regia, 1.2Â M hydrochloric, 0.94Â M citric and 1.5Â M nitric acids - resulted in high (>75%) zinc extraction with good Fe selectivity (iron extraction <6% in 1.2Â M hydrochloric acid, 10% aqua regia and <15% with 0.94Â M citric and 1.5Â M nitric acids). Furthermore, these four leaching media showed partial dissolution of manganese (21-35%), chromium (36-65%) and lead (18-60%), although the highest lead removal was achieved with 1.75Â M acetic acid. In terms of zinc selectivity, it was found that ammonium outperformed both sodium and potassium hydroxide.
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Authors
Petteri Halli, Joseph Hamuyuni, Hannu Revitzer, Mari Lundström,