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The acid leaching solution of electrostatic precipitator dust from copper smelting has a high concentration of sulfuric acid, in which the iron and arsenic exist in the form of Fe3+and As5+, thus it is decided to adopt arsenic sulfide residue as the precipitant for copper precipitation. Firstly, an experiment was performed on the addition of arsenic sulfide residue in single Cu2+ and Fe3+ solution with different acid concentrations. Based on that, an experiment was performed for copper precipitation and arsenic leaching in the actual acid leaching solution. The results show that in the process of copper precipitation with arsenic sulfide residue, oxidation and reduction reactions between Fe3+ and S2- occur firstly, which is followed by oxidation and reduction reactions of As5+ and S2-, and finally a sulfurization reaction for precipitation of Cu2+. When the addition of arsenic sulfide residue is at an amount of 1.4 times the theoretical amount, it is shown that the copper precipitation rate is relatively higher, but the rate of arsenic dissolution is lower.

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针对高硫酸浓度且铁、砷以高价态Fe3+、As5+形式存在的酸浸液,采用硫化砷渣为沉铜剂沉铜。首先开展了不同酸浓度下单一Cu2+、Fe3+溶液中硫化砷渣加入量实验,在此基础上再进行了实际酸浸液沉铜、浸出砷实验。结果表明,采用硫化砷渣沉铜时,首先发生Fe3+与S2-的氧化还原反应,其次是As5+与S2-的氧化还原反应,最后是Cu2+的硫化沉淀反应;硫化砷渣加入量为理论量的1.4倍时,沉铜率较高,但砷溶出率较低。

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马云聪(1991—),男,湖南岳阳人,工程师,主要从事矿产资源湿法冶金资源回收利用研究。

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马云聪(1991—),男,湖南岳阳人,工程师,主要从事矿产资源湿法冶金资源回收利用研究。

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马云聪(1991—),男,湖南岳阳人,工程师,主要从事矿产资源湿法冶金资源回收利用研究。

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铜冶炼电收尘酸浸液硫化砷渣沉铜行为研究
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马云聪 1 , 许俊 2 , 佘宗华 1 , 罗豪 1
矿冶工程杂志 | 冶金 2023,43(6): 116-118
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矿冶工程杂志 | 冶金 2023, 43(6): 116-118
铜冶炼电收尘酸浸液硫化砷渣沉铜行为研究
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马云聪1, 许俊2, 佘宗华1, 罗豪1
作者信息
  • 1.长沙矿冶研究院有限责任公司,湖南 长沙 410012
  • 2.广西金川有色金属有限公司,广西 防城港 538000
  • 马云聪(1991—),男,湖南岳阳人,工程师,主要从事矿产资源湿法冶金资源回收利用研究。

Copper Precipitation Process with Arsenic Sulfide Residue for Acid Leaching Solution of Electrostatic Precipitator Dust from Copper Smelting Production
Yuncong MA1, Jun XU2, Zonghua SHE1, Hao LUO1
Affiliations
  • 1.Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China
  • 2.Guangxi Jinchuan Nonferrous Metals Co Ltd, Fangchenggang 538000, Guangxi, China
出版时间: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.025
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针对高硫酸浓度且铁、砷以高价态Fe3+、As5+形式存在的酸浸液,采用硫化砷渣为沉铜剂沉铜。首先开展了不同酸浓度下单一Cu2+、Fe3+溶液中硫化砷渣加入量实验,在此基础上再进行了实际酸浸液沉铜、浸出砷实验。结果表明,采用硫化砷渣沉铜时,首先发生Fe3+与S2-的氧化还原反应,其次是As5+与S2-的氧化还原反应,最后是Cu2+的硫化沉淀反应;硫化砷渣加入量为理论量的1.4倍时,沉铜率较高,但砷溶出率较低。

铜冶炼  /  电收尘  /  硫化砷渣  /  沉铜  /  溶出  /  砷  /  铁  /  高酸度

The acid leaching solution of electrostatic precipitator dust from copper smelting has a high concentration of sulfuric acid, in which the iron and arsenic exist in the form of Fe3+and As5+, thus it is decided to adopt arsenic sulfide residue as the precipitant for copper precipitation. Firstly, an experiment was performed on the addition of arsenic sulfide residue in single Cu2+ and Fe3+ solution with different acid concentrations. Based on that, an experiment was performed for copper precipitation and arsenic leaching in the actual acid leaching solution. The results show that in the process of copper precipitation with arsenic sulfide residue, oxidation and reduction reactions between Fe3+ and S2- occur firstly, which is followed by oxidation and reduction reactions of As5+ and S2-, and finally a sulfurization reaction for precipitation of Cu2+. When the addition of arsenic sulfide residue is at an amount of 1.4 times the theoretical amount, it is shown that the copper precipitation rate is relatively higher, but the rate of arsenic dissolution is lower.

copper smelting  /  electrostatic precipitator dust  /  arsenic sulfide residue  /  copper precipitation  /  dissolution  /  arsenic  /  iron  /  high acidity
马云聪, 许俊, 佘宗华, 罗豪. 铜冶炼电收尘酸浸液硫化砷渣沉铜行为研究. 矿冶工程杂志, 2023 , 43 (6) : 116 -118 . DOI: 10.3969/j.issn.0253-6099.2023.06.025
Yuncong MA, Jun XU, Zonghua SHE, Hao LUO. Copper Precipitation Process with Arsenic Sulfide Residue for Acid Leaching Solution of Electrostatic Precipitator Dust from Copper Smelting Production[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 116 -118 . DOI: 10.3969/j.issn.0253-6099.2023.06.025
  • 国家重点研发计划课题(2018YFC1903304-03)
2023年第43卷第6期
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doi: 10.3969/j.issn.0253-6099.2023.06.025
  • 接收时间:2023-07-01
  • 首发时间:2026-03-05
  • 出版时间:2023-12-01
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  • 收稿日期:2023-07-01
基金
国家重点研发计划课题(2018YFC1903304-03)
作者信息
    1.长沙矿冶研究院有限责任公司,湖南 长沙 410012
    2.广西金川有色金属有限公司,广西 防城港 538000
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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