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投稿时间：2022-11-24 修订日期：2022-12-05 录用日期：2022-12-06 网络发布日期：2023-03-17
投稿时间：2022-11-24 修订日期：2022-12-05 录用日期：2022-12-06 网络发布日期：2023-03-17
中文摘要: 针对铜冶炼系统含砷烟尘中砷难以高效富集和脱除的问题，采用水浸-碱浸两步浸出工艺进行脱砷研究。结果表明：含砷烟尘先在液固比1︰1的条件下常温水浸，然后在NaOH浓度2 mol/L、Na2S浓度0.2 mol/L、温度70 ℃、液固比4︰1的条件下碱浸，最终砷的浸出率为95.61%，浸出渣含砷量小于0.5%，铜、铁、锌、铅的浸出率分别为0.01%、0.02%、6.21%和10.77%。
Abstract:Address to difficulty to efficient enrichment and removal of arsenic from arsenic-bearing dust in copper smelting system, a two-step leaching process of water leaching and alkali leaching of arsenic removal from arsenic-bearing dust was studied. The results show that final arsenic leaching rate is 95.61% and arsenic content in leaching slag is less than 0.5%, and the leaching rate of Cu, Fe, Zn and Pb is 0.01%, 0.02%, 6.21% and 10.77%, respectively, when the arsenic-bearing dust is leached by water at room temperature with ratio of liquid to solid of 1︰1 and then alkali leached under the conditions including NaOH concentration of 2 mol/L, Na2S concentration of 0.2 mol/L, temperature of 70 ℃, and ratio of liquid to solid of 4︰1.
keywords: arsenic leaching copper smelting arsenic-bearing dust
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基金项目:国家重点研发计划项目（2022YFC3900804）；国家自然科学基金资助项目（52274349，51874101）
引用文本：
迟晓鹏,许佳妍,翁威,谭文,衷水平.铜冶炼烟尘选择性湿法脱砷及有价元素的同步回收[J].有色金属（冶炼部分）,2023(4):8-13.
CHI Xiao-peng,XU Jia-yan,WENG Wei,TAN Wen,ZHONG Shui-ping.Selective Wet Removal of Arsenic and Simultaneous Recovery of Valuable Elements from Copper Smelting Dust[J].Nonferrous Metals (Extractive Metallurgy),2023(4):8-13.
迟晓鹏,许佳妍,翁威,谭文,衷水平.铜冶炼烟尘选择性湿法脱砷及有价元素的同步回收[J].有色金属（冶炼部分）,2023(4):8-13.
CHI Xiao-peng,XU Jia-yan,WENG Wei,TAN Wen,ZHONG Shui-ping.Selective Wet Removal of Arsenic and Simultaneous Recovery of Valuable Elements from Copper Smelting Dust[J].Nonferrous Metals (Extractive Metallurgy),2023(4):8-13.
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