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; T. Nakamura

doi:10.1016/j.hydromet.2007.09.011

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, T. Nakamura

IMRAM - Center for Mineral Processing and Metallurgy (CMPM)

Research output: Contribution to journal › Article › peer-review

96 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	85-91
Number of pages	7
Journal	Hydrometallurgy
Volume	90
Issue number	2-4
DOIs	https://doi.org/10.1016/j.hydromet.2007.09.011
Publication status	Published - 2008 Feb

Keywords

Air
Arsenic(V)
Crystalline
Ferric arsenate
Ferrous oxidation
Oxygen
Scorodite

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10.1016/j.hydromet.2007.09.011

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abstract = "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.",

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T1 - Novel atmospheric scorodite synthesis by oxidation of ferrous sulfate solution. Part II. Effect of temperature and air

AU - Fujita, T.

AU - Taguchi, R.

AU - Abumiya, M.

AU - Matsumoto, M.

AU - Shibata, E.

AU - Nakamura, T.

PY - 2008/2

Y1 - 2008/2

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AB - 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.

KW - Air

KW - Arsenic(V)

KW - Crystalline

KW - Ferric arsenate

KW - Ferrous oxidation

KW - Oxygen

KW - Scorodite

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

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Keywords

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