Novel atmospheric scorodite synthesis by oxidation of ferrous sulfate solution. Part II. Effect of temperature and air

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

研究成果: Article査読

76 被引用数 (Scopus)

抄録

We have previously reported a novel method for producing stable scorodite (FeAsO4·2H2O) under atmospheric conditions in which ferrous sulfate was oxidized by oxygen in the presence of high concentrations of arsenic(V). This work examines the effects of reaction temperature (95, 70, 50 °C) and the oxidizing agent (air, pure oxygen gas) to optimize scorodite formation in a practical process. Crystalline scorodite of low solubility could be prepared at 70 °C within only 7 h using either oxygen or air sparging and small particles were even formed at 50 °C using air oxidation.

本文言語English
ページ(範囲)85-91
ページ数7
ジャーナルHydrometallurgy
90
2-4
DOI
出版ステータスPublished - 2008 2 1

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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