Novel atmospheric scorodite synthesis by oxidation of ferrous sulfate solution. Part I

T. Fujita, R. Taguchi, M. Abumiya, M. Matsumoto, E. Shibata, T. Nakamura

研究成果: Article査読

103 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)92-102
ページ数11
ジャーナルHydrometallurgy
90
2-4
DOI
出版ステータスPublished - 2008 2

ASJC Scopus subject areas

  • 産業および生産工学
  • 金属および合金
  • 材料化学

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