Recovering of Zinc from Solid Waste Bearing Sphalerite or Zinc Ferrite by Mechano-Chemical Extraction in Alkaline Solution

Recovering of Zinc from Solid Waste Bearing Sphalerite or Zinc Ferrite by Mechano-Chemical Extraction in Alkaline Solution
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碱性溶液中机械化学萃取从含闪锌矿或铁酸锌固体废物中回收锌

DOI:
10.1016/j.proenv.2012.10.107
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发表时间:
2012
期刊:
Procedia Environmental Sciences
影响因子:
--
通讯作者:
Youcai Zhao
Youcai Zhao
中科院分区:
其他
文献类型:
--
作者:
Chenglong Zhang;Jingwei Wang;Jianfeng Bai;Youcai Zhao

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研究了机械活化法从贫锌矿和电炉烟尘中提取锌的效果。机械力化学浸出比化学浸出更有效。结果表明,以铅化合物为添加剂,在5 mol/LNaOH溶液中,以Φ5 mm不锈钢球为活化介质,球料质量比为30:1,温度为90°C时,机械力化学浸出法可从含闪锌矿的贫锌矿中提取82%以上的锌,从电炉烟尘中提取45%以上的锌。
This study evaluates the efficiency of using mechanical activation for the extraction of zinc from sphalerite and zinc ferrite in lean zinc ores or EAF dusts in alkaline. The mechano-chemical leaching is more effective in comparison with the chemical leaching of non-activated samples. It was found that over 82% of Zn can be extracted from lean zinc ores containing sphalerite with lead compound as additive, and over 45% Zn in EAF dusts can be extracted by mechano-chemical leaching when the leaching process is operated in 5 mol/L NaOH solution at 90°C, and Φ5 mm stainless steel ball as activation medium, the mass ratio of ball to raw materials of 30:1.
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