Alkaline oxidative pressure leaching of arsenic and antimony bearing dusts
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- 作者：Yuhu Li ; hu115_2hu@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Zhihong Liu ; Qihou Li ; Fupeng Liu ; Zhiyong Liu
- 关键词：Arsenic ; Antimony ; Separation ; Recovery ; Alkaline leaching ; Oxidative leaching
- 刊名：Hydrometallurgy
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：166
- 期：Complete
- 页码：41-47
- 全文大小：1490 K
文摘
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Alkaline oxidative pressure leaching of As and Sb bearing dusts was developed.
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95% of As was selectively leached, leaving Sb and Pb in the residue.
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The low solubility arsenite can be completely oxidized to high soluble arsenate.
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Sb2O3 was transformed into insoluble Sb2O3(OH) and NaSb(OH)6.
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The separation of Sb and As was strongly affected by NaOH concentration.