Hydrometallurgical extraction of zinc from CaO treated EAF dust in ammonium chloride solution
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- 作者：Takahiro Mikia ; Romchat Chairaksa-Fujimotoa ; romchatchairaksa@gmail.com" class="auth_mail" title="E-mail the corresponding author ; chairaksaromchat@material.tohoku.ac.jp" class="auth_mail" title="E-mail the corresponding author ; romchatsine@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Katsuya Maruyamab ; Tetsuya Nagasakaa
- 关键词：EAF dust ; Zinc ; Leaching ; Hydrometallurgy ; Ammonium chloride leaching
- 刊名：Journal of Hazardous Materials
- 出版年：2016
- 出版时间：25 January 2016
- 年：2016
- 卷：302
- 期：Complete
- 页码：90-96
- 全文大小：1601 K
文摘
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Solubility of ZnFe2O4 can be increased by pretreatment with the CaO addition.
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Zinc was leached from as-supplied EAF dust and CaO treated dust by using NH4Cl.
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All of zinc in CaO treated dust was successfully leached in the NH4Cl solution.
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While about 20% of calcium was leached, no iron was leached in the NH4Cl solution.
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The leached Ca2Fe2O5 residue can be supplied to the steelmaking industry.
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