Fundamental study of an ambient temperature ferrite process in the treatment of acid mine drainage

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Department of Mining Engineering, McGill University, 3450 University Street, Montreal, Que. H3A 2A7, Canada ^{[1
]}

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]}

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来源：

ENVIRON. SCI. TECHNOL. | / 8卷 / 2604-2608期

关键词：

Acids - Drainage - Environmental engineering - Ferrites - Mines - X ray diffraction analysis;

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摘要：

The feasibility of making ferrite at ambient temperature from solutions of simulated acid mine drainage is explored. The X-ray diffraction and saturation magnetization of the precipitates obtained clearly show that the spinel ferrite can be made at ambient conditions and pH 9-11. The optimum molar ratio Fe3+ to Fe2+, a critical parameter for ferrite formation, is found to be 1.75. The effect of [Zn2+] and [Ca2+] in solution on ferrite formation was investigated. The former has no effect on the magnetic properties of ferrite, but the saturation magnetization of the ferrite decreases with an increase of [Ca2+]. The results suggest that an ambient temperature ferrite process for acid mine drainage is worthy of further investigation.

引用

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[1] Fundamental study of an ambient temperature ferrite process in the treatment of acid mine drainage
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ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1996, 30 (08) : 2604 - 2608
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