2008年2月
Novel atmospheric scorodite synthesis by oxidation of ferrous sulfate solution. Part I
Hydrometallurgy
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- 巻
- 90
- 号
- 2-4
- 開始ページ
- 92
- 終了ページ
- 102
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.hydromet.2007.09.012
A new atmospheric scorodite synthesis process was investigated. A large size and good crystalline scorodite was precipitated at 95 °C even in a short time of 1 to 7 h when ferrous ions were oxidized by oxygen gas in the presence of As(V) ion with concentrations as high as 50 g/L As in sulfuric acid solution. The key point of the process is the ferrous state of iron in solution and the oxidation of ferrous ions during the scorodite precipitation. This scorodite has a particle size of 15 μm with approximately 10% moisture content (wet base) even under atmospheric conditions. The arsenic content was about 30% by mass. The results of the leach test are very desirable. The process can be applied to a primary smelter which produces copper, zinc, lead and other secondary materials. © 2007 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.hydromet.2007.09.012
- ISSN : 0304-386X
- SCOPUS ID : 38749086526