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| Process Study of Direct Leaching of Pb-Zn Bearing Dust with Sulfuric Acid |
| Received:July 02, 2013 Revised:July 04, 2013 |
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| DOI：10.3969/j.issn.1007-7545.2014.01.002 |
| KeyWord:Pb-Zn bearing dust; sulfuric acid; leaching; leaching rate |
| Author | Institution |
| SUN Hong-yan |
红河学院理学院 |
| HUANG Zhao-long |
红河学院理学院 |
| JIANG Yan |
红河学院理学院 |
| YANG Chang-ying |
红河学院理学院 |
| SUN Cheng-mei |
红河学院理学院 |
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| Abstract: |
| Pb-Zn bearing dust was directly leached by sulfuric acid. The effects of H2SO4 concentration, ratio of liquid to solid (L/S), leaching time and temperature on zinc leaching rate and rate of lead going into leaching residue were investigated. The results show that the zinc leaching rate is 93.55% and the rate of lead going into leaching residue is 92.01% under the optimum conditions including H2SO4 concentration of 175 g/L, L/S=6∶1, leaching duration of 60 min and leaching temperature of 60 ℃. |
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