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Preparation of High-purity Quartz Sand by Leaching with Mixed Acids
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Xuesong ZHAO1, Xin LIU1, Caixia LI1, Yan HONG1, Dongxu WANG1, Min LIU2
Journal of the Chinese Ceramic Society | 2021, 49(3) : 581 - 589
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Journal of the Chinese Ceramic Society | 2021, 49(3): 581-589
Preparation of High-purity Quartz Sand by Leaching with Mixed Acids
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Xuesong ZHAO1, Xin LIU1, Caixia LI1, Yan HONG1, Dongxu WANG1, Min LIU2
Affiliations
  • 1.College of Mining, Liaoning Technical University, Fuxin 123000, Liaoning, China
  • 2.College of Sciences, Liaoning Technical University, Fuxin 123000, Liaoning, China

    • LIU Xin (1996-), male, Master candidate. E-mail:

About Author:

LIU Xin (1996-), male, Master candidate. E-mail:

Published: 2021-03-20 doi: 10.14062/j.issn.0454-5648.20200367
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A high-purity quartz sand was prepared by a mixed acid leaching method with quartz sand in Donghai County as a raw material, hydrochloric acid, oxalic acid and citric acid as leaching agents. The influences of acid concentration, liquid-solid mass ratio, acid leaching temperature and acid leaching time on the phase structure and leaching efficiency of quartz sand were investigated, and the kinetic model of leaching quartz sand with mixed hydrochloric acid, oxalic acid and citric acid was deduced. The results show that the acid concentration, liquid-solid mass ratio, acid leaching temperature and acid leaching time all have an effect on the efficiency of acid leaching. The mixed acid leaching process follows a diffusion control model, and Ea is 13.22 kJ/mol. Fe content in quartz sand decreases from 342.62 mg/kg to 90.21 mg/kg, and the iron removal rate is 73.67% a after leaching at a hydrochloric acid concentration of 4.5 mol/L, an oxalic acid concentration of 0.05 mol/L and a citric acid concentration of 0.01 mol/L under normal pressure at 80℃ for 6 h. In this case, the total impurity content decreases from 523.79 mg/kg to 194.39 mg/kg, the impurity removal rate is 62.89%, and the purity of SiO2 is 99.97%, which meets the requirements for the use of crystalline glass.

quartz sand  /  acid leaching  /  purification  /  leaching kinetics
赵雪淞, 刘鑫, 李彩霞, 洪琰, 王冬旭, 刘民. 混酸提纯制备高纯石英砂及浸出动力学分析. 硅酸盐学报, 2021 , 49 (3) : 581 -589 . DOI: 10.14062/j.issn.0454-5648.20200367
Xuesong ZHAO, Xin LIU, Caixia LI, Yan HONG, Dongxu WANG, Min LIU. Preparation of High-purity Quartz Sand by Leaching with Mixed Acids[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (3) : 581 -589 . DOI: 10.14062/j.issn.0454-5648.20200367
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Article Info
doi: 10.14062/j.issn.0454-5648.20200367
  • Receive Date：2020-05-25
  • Online Date：2026-10-30
  • Published：2021-03-20
Article Data
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History
  • Received：2020-05-25
  • Revised：2020-06-18
Funding
Affiliations
    1.College of Mining, Liaoning Technical University, Fuxin 123000, Liaoning, China
    2.College of Sciences, Liaoning Technical University, Fuxin 123000, Liaoning, China

Corresponding:

ZHAO Xuesong (1971-), female, Ph.D., Professor. E-mail:
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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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