Recovery of Iron from Cyanide Tailings with Reduction Roasting–Water Leaching- Magnetic Separation

Xian Jin Yu; Ya Li Zhang; Huai Mei Li

doi:10.4028/www.scientific.net/AMR.396-398.486

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398Recovery of Iron from Cyanide Tailings with...

Recovery of Iron from Cyanide Tailings with Reduction Roasting–Water Leaching- Magnetic Separation

Abstract:

Cyanide tailings have become one kind of the most hazardous solid waste. In order to recycle iron in the cyanide tailings, we present a technique using roasting- water leaching- magnetic separation. After analysis of the different parameters on recovery efficiency of iron, the optimum reaction parameters were proposed as the following: in reduction roasting process, weight ratios of cyanide tailings / activated carbon at 100:10, roasting at 750 °C; the liquid to solid ratio is 15:1 (ml /g), leaching at 60 °C for 5 min at water leaching. The grade of magnetic concentrate 53.8231％Fe and recovery rate of 76.5458％ were obtained. Mineralography of roasted product, water-leached sample were studied by X-ray powder diffraction technique (XRD).

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Periodical:

Advanced Materials Research (Volumes 396-398)

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486-489

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.486

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Online since:

November 2011

Authors:

Xian Jin Yu, Ya Li Zhang, Huai Mei Li

Keywords:

Cyanide Tailings, Magnetic Separation, Reduction Roasting, Water Leaching

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