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Synergistic Leaching of Zinc and Germanium from Germanium-rich Zinc Concentrate
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Zhichao FENG1, Peiyan PANG2, Xuexian JIANG2, Guixiang HE2, Jierong ZHOU2, Zhonglin LI1, Yibing LI1
Hydrometallurgy of China | 2026, 45(1) : 31 - 38
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Hydrometallurgy of China | 2026, 45(1): 31-38
• Experiment Research •
Synergistic Leaching of Zinc and Germanium from Germanium-rich Zinc Concentrate
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Zhichao FENG1, Peiyan PANG2, Xuexian JIANG2, Guixiang HE2, Jierong ZHOU2, Zhonglin LI1, Yibing LI1
Affiliations
  • 1.College of Materials Science and Engineering, Guilin University of Technology, Guilin　541004, China
  • 2.College of Metallurgical and Resources Engineering, Guilin University of Technology at Nanning, Nanning　530001, China
Published: 2026-02-20 doi: 10.13355/j.cnki.sfyj.2026.01.005
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The leaching of zinc and germanium from germanium-rich zinc concentrate by oxygen pressure leaching process was studied. The effects of key factors such as the initial acidity of sulfuric acid, reaction temperature, leaching time, oxygen partial pressure, sodium lignosulfonate addition amount, liquid volume to solid mass ratio, and stirring speed on the leaching rates of zinc and germanium were systematically investigated. The optimal process conditions for oxygen pressure leaching are determined through single-factor experiments as follows:leaching temperature is 160 ℃, leaching time is 150 min, initial acidity of sulfuric acid is 160 g/L, partial pressure of oxygen is 1.2 MPa, addition amount of sodium lignosulfonate is 1 g, liquid volume to solid mass ratio is 8/1, and stirring speed is 600 r/min. Under the conditions, the germanium leaching rate reaches 94.86% and the zinc leaching rate reaches 99.98%. Compared with the traditional atmospheric pressure leaching, the optimized oxygen pressure process can increase the germanium leaching rate by more than 15%, shorten the leaching time by 40%, and also avoid the emission of high-concentration H2S gas, reducing environmental pollution and providing a technical reference for the comprehensive utilization of valuable elements in zinc concentrate.

germanium-rich zinc concentrate  /  oxygen pressure leaching  /  zinc  /  germanium  /  sulfuric acid
俸智超, 庞沛彦, 蒋学先, 何贵香, 周街荣, 李中林, 李义兵. 富锗锌精矿协同浸出锌锗工艺研究. 湿法冶金, 2026 , 45 (1) : 31 -38 . DOI: 10.13355/j.cnki.sfyj.2026.01.005
Zhichao FENG, Peiyan PANG, Xuexian JIANG, Guixiang HE, Jierong ZHOU, Zhonglin LI, Yibing LI. Synergistic Leaching of Zinc and Germanium from Germanium-rich Zinc Concentrate[J]. Hydrometallurgy of China, 2026 , 45 (1) : 31 -38 . DOI: 10.13355/j.cnki.sfyj.2026.01.005
Appendix
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Year 2026 volume 45 Issue 1
141
35
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.01.005
  • Receive Date：2025-07-28
  • Online Date：2026-09-28
  • Published：2026-02-20
Article Data
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History
  • Received：2025-07-28
  • Revised：2025-08-25
Funding
Affiliations
    1.College of Materials Science and Engineering, Guilin University of Technology, Guilin　541004, China
    2.College of Metallurgical and Resources Engineering, Guilin University of Technology at Nanning, Nanning　530001, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
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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