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Recovery of Gold and Iron from the Cyanide Tailings by Magnetic Roasting
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Recovery of Gold and Iron from the Cyanide Tailings by Magnetic Roasting
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The Fund Project of Xi’an University of Architecture and Technoogy (QN1216)

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    摘要:

    對氰化尾渣的焙燒預處理及其對有價金屬綜合回收的影響進行了研究。結(jié)果表明：當焙燒溫度為750 ℃、焙燒時間為1.25 h、還原劑添加量為6%時，鐵的磁化率為86.27%，金的浸出率達到46.14%。結(jié)合礦物構(gòu)造與赤鐵礦磁化焙燒原理，探討了焙燒對金浸出影響的機理，認為赤鐵礦磁化焙燒后解離出的包裹金，是提高金浸出率的主要來源

    Abstract:

    The pretreatment of the cyanide tailing by roasting and its effect on the followed comprehensive recovery of valuable metals were investigated. The results indicate that the leaching rate of gold reaches 46.14%, the magnetic susceptibility of iron is up to 86.27% when the roasting temperature is 750 °C, the roasting time is 1.25 h, and the dosage of reductant is 6%. Combined with mineral structure and principle of magnetic roasting, the promoting mechanism of gold leaching by roasting was explored. The gold exposed through the magnetic roasting is the foremost improvement for high leaching rate of gold

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劉佰龍,張朝暉,李林波,王玉潔. Recovery of Gold and Iron from the Cyanide Tailings by Magnetic Roasting[J].稀有金屬材料與工程,2013,42(9):1805~1809.[Liu Bailong, Zhang Zhaohui, Li Linbo, Wang Yujie. Recovery of Gold and Iron from the Cyanide Tailings by Magnetic Roasting[J]. Rare Metal Materials and Engineering,2013,42(9):1805~1809.]
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  • 收稿日期:2012-09-21
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