Trend of arsenic for the arsenic-containing gold ores or concentrates in the process of pretreatment

WANG Hui; WANG Jian; WANG Ping; PAN Yue; WANG Ruixiang; XU Zhifeng

doi:10.13264/j.cnki.ysjskx.2023.03.005

Volume 14 Issue 3

Jun. 2023

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Nonferrous Metals Science and Engineering > 2023 > 14(3): 329-337. > DOI: 10.13264/j.cnki.ysjskx.2023.03.005

WANG Hui, WANG Jian, WANG Ping, PAN Yue, WANG Ruixiang, XU Zhifeng. Trend of arsenic for the arsenic-containing gold ores or concentrates in the process of pretreatment[J]. Nonferrous Metals Science and Engineering, 2023, 14(3): 329-337. DOI: 10.13264/j.cnki.ysjskx.2023.03.005

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Trend of arsenic for the arsenic-containing gold ores or concentrates in the process of pretreatment

WANG Hui^1a,
WANG Jian^{1a, 1b, ,},
WANG Ping²,
PAN Yue^{1a, 1b},
WANG Ruixiang^{1a, 1b},
XU Zhifeng³

1a.
Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
1b.
Ganzhou Engineering Technology Research Center of Green Metallurgy and Process Intensification, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
2.
Shandong Gold Group Co., Ltd., Jinan 250014, China
3.
Jiangxi College of Applied Technology, Ganzhou 341000, Jiangxi, China

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Received Date: March 15, 2022
Revised Date: June 08, 2022
Available Online: June 30, 2023

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Abstract

In recent years, the resources for free-milling gold ores have been nearly exhausted with the large-scale mining of gold deposits. Complex and refractory gold ores have become the main raw materials for gold production from ores in China's gold industry, such as arsenic-containing gold ores or concentrates. For arsenic-containing gold ores or concentrates, fine-grained gold is usually distributed in submicroscopic structures and encapsulated in sulfide minerals, such as pyrite and arsenopyrite, which means that gold recovery by leaching is extremely difficult without pretreatment. The pretreatment methods for arsenic-containing gold ores or concentrates include bio-oxidation, pressure oxidation, chemical oxidation, two-stage roasting, etc. In this paper, the trend of arsenic in the process of pretreatment is discussed by reviewing the basic mechanism and relevant research for the main pretreatment methods. In addition, future research directions on pretreatment methods are also proposed for arsenic-containing gold ores or concentrates.
- arsenic-containing gold ores or concentrates,
- pretreatment,
- trend of arsenic

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References

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Trend of arsenic for the arsenic-containing gold ores or concentrates in the process of pretreatment

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