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Pretreatment, Leaching Process and Mechanism of a Certain Quartzite in Gansu Province
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Yilin BAI1, 2, Liuyi REN1, 2, Bo CHEN1, 2, Siyuan YANG1, 2, Qiang SHEN3, Lianmeng ZHANG4, Shenxu BAO1, 2
Hydrometallurgy of China | 2026, 45(1) : 63 - 73
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Hydrometallurgy of China | 2026, 45(1): 63-73
• Experiment Research •
Pretreatment, Leaching Process and Mechanism of a Certain Quartzite in Gansu Province
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Yilin BAI1, 2, Liuyi REN1, 2, Bo CHEN1, 2, Siyuan YANG1, 2, Qiang SHEN3, Lianmeng ZHANG4, Shenxu BAO1, 2
Affiliations
  • 1.Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan　430070, China
  • 2.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan　430070, China
  • 3.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan　430070, China
  • 4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan　430070, China
Published: 2026-02-20 doi: 10.13355/j.cnki.sfyj.2026.01.010
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For the raw material of quartzite-type quartz ore in Gansu Province, the pretreatment process of “magnetic separation-flotation-roasting and water quenching” was adopted, and then the purification process was carried out by atmospheric pressure acid leaching. The effects of leaching agent type, leaching temperature, liquid volume to solid mass ratio and leaching time on the impurity removal rate of quartz sand were investigated. The research results show that in the mixed acid system of 2 mol/L HF+2 mol/L HCl+2 mol/L HNO3, under the conditions of leaching temperature of 80 ℃, liquid volume to solid mass ratio of 3 mL/1 g, and leaching time of 7 h, the purity of SiO2 in the product can be increased from 99.80% of the raw ore to 99.98% and the total impurity removal rate can reach 90%. The results of leaching kinetics analysis indicate that the leaching processes of Al and Fe are controlled by internal diffusion, with apparent activation energies of 7.2 and 21.1 kJ/mol, respectively. The method can provide a certain technology reference for the preparation of high-purity quartz from quartzite-type quartz ore.

high-purity quartz  /  quartzite  /  pre-treatment  /  aluminum  /  iron  /  acid leaching  /  purification  /  kinetics
白乙霖, 任浏祎, 陈波, 杨思原, 沈强, 张联盟, 包申旭. 甘肃某石英岩预处理与浸出工艺及机制研究. 湿法冶金, 2026 , 45 (1) : 63 -73 . DOI: 10.13355/j.cnki.sfyj.2026.01.010
Yilin BAI, Liuyi REN, Bo CHEN, Siyuan YANG, Qiang SHEN, Lianmeng ZHANG, Shenxu BAO. Pretreatment, Leaching Process and Mechanism of a Certain Quartzite in Gansu Province[J]. Hydrometallurgy of China, 2026 , 45 (1) : 63 -73 . DOI: 10.13355/j.cnki.sfyj.2026.01.010
Appendix
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Year 2026 volume 45 Issue 1
144
32
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.01.010
  • Receive Date：2025-06-25
  • Online Date：2026-09-28
  • Published：2026-02-20
Article Data
Affiliations
History
  • Received：2025-06-25
  • Revised：2025-08-15
Funding
Affiliations
    1.Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan　430070, China
    2.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan　430070, China
    3.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan　430070, China
    4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan　430070, 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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