某脉石英热压浸出除杂及动力学研究

金属矿山 ›› 2025, Vol. 54 ›› Issue (10): 111-116.

某脉石英热压浸出除杂及动力学研究

邵　辉^1,2　翟振民²　姬梦姣²　杨丙桥¹　罗惠华¹　李佩悦²

1. 武汉工程大学资源与安全工程学院,湖北武汉 430074;2. 中建材玻璃新材料研究院集团有限公司,安徽蚌埠 233018

出版日期:2025-10-15 发布日期:2025-11-06
通讯作者: 杨丙桥(1985—),男,教授,博士,硕士研究生导师。
作者简介:邵　辉(1989—),男,高级工程师,硕士。
基金资助:
国家科技重大专项(编号:2024ZD0605400)。

Hot Pressing Leaching of A Vein Quartz for Impurity Removal and Kinetic Analysis

SHAO Hui^1,2　ZHAI Zhenmin²　JI Mengjiao²　YANG Bingqiao¹　LUO Huihua¹　LI Peiyue²

1. School of Resources and Safety Engineering,Wuhan Institute of Technology,Wuhan 430074,China;
2. CNBM Research Institute for Advanced Glass Materials Group Co. ,Ltd. ,Bengbu 233018,China

Online:2025-10-15 Published:2025-11-06

摘要/Abstract

摘要： 以陕西某地脉石英矿石为研究对象,在选矿预处理基础上,采用盐酸-硝酸-氢氟酸混合体系作为浸出
剂,开展热压浸出试验,系统研究了液固比、反应时间与反应温度对杂质元素浸出行为的影响。结果表明,最佳工艺条
件为液固比3∶1 mL/ g、反应时间5 h、反应温度200 ℃,此条件下Al、Fe、K、Na 的浸出率分别为17. 12%、63. 14%、
50. 26%和55. 96%,所得石英精砂的SiO2 纯度达99. 993%,达到4N3 级(准)高纯石英标准。动力学分析表明,Fe 的
浸出过程符合Avrami 模型,各温度下拟合相关系数R2 均大于0. 97,表观活化能为38. 54 kJ/ mol,揭示其浸出机制受
化学反应与扩散混合控制。本研究为高纯脉石英提纯技术的开发提供了理论依据与工艺参考。

关键词: 脉石英　热压浸出　除杂　动力学分析

Abstract: Taking vein quartz ore from a certain area in Shaanxi as the research object,based on mineral processing pretreatment,
a mixed system of hydrochloric acid-nitric acid-hydrofluoric acid was used as the leaching agent to carry out hotpressure
leaching tests. The effects of liquid-solid ratio,reaction time and reaction temperature on the leaching behavior of impurity
elements were systematically studied. The results show that the optimal process conditions are a liquid-solid ratio of 3∶1
mL/ g,a reaction time of 5 h,and a reaction temperature of 200 ℃. Under these conditions,the leaching rates of Al,Fe,K,and
Na are 17. 12%,63. 14%,50. 26%,and 55. 96% respectively. The SiO2 purity of the obtained quartz concentrate reaches
99. 993%,meeting the 4N3 grade (quasi) high-purity quartz standard. Kinetic analysis shows that the leaching process of Fe
conforms to the Avrami model. The fitting correlation coefficient R2 at each temperature is greater than 0. 97,and the apparent
activation energy is 38. 54 kJ/ mol,which reveals that the leaching mechanism is controlled by the combination of chemical reaction
and diffusion. This study provides a theoretical basis and process reference for the development of high-purity vein quartz
purification technology.

Key words: gangue quartz,hot-press leaching,impurity removal,kinetic analysis

中图分类号:

邵　辉, 　翟振民　姬梦姣　杨丙桥　罗惠华　李佩悦. 某脉石英热压浸出除杂及动力学研究[J]. 金属矿山, 2025, 54(10): 111-116.

SHAO Hui, 　ZHAI Zhenmin　JI Mengjiao　YANG Bingqiao　LUO Huihua　LI Peiyue. Hot Pressing Leaching of A Vein Quartz for Impurity Removal and Kinetic Analysis[J]. Metal Mine, 2025, 54(10): 111-116.

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