Recovery of Fe, Al and Mn in acid coal mine drainage by sequential selective precipitation with control of pH
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- 作者：E.Y. Seoa ; Y.W. Cheongb ; ywc@kigam.re.kr" class="auth_mail" title="E-mail the corresponding author ; G.J. Yimb ; K.W. Mina ; J.N. Geronic
- 关键词：Acid mine drainage ; Neutralization precipitation ; Recovery of dissolved metals ; Oxidant
- 刊名：Catena
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：148
- 期：part_P1
- 页码：11-16
- 全文大小：785 K
文摘
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Purified Fe, Al and Mn hydroxides would be potential resources.
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Sequence of metal removal was Al > Fe > Mn by only neutralization.
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Sequence of metal removal was Fe > Al > Mn by oxidation before neutralization.
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Recovery of Fe increased from 45.8–70.3% to 99.2–99.3% at pH 4.5.
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Recovery of Al reached 70.4%–82.2% at pH 5.5, when the purity was 94.5–99.9%.