高纯高白石英砂提纯机理研究  

Study on Purification Mechanism of High Purity and High White Quartz Sand

作　　者：温云峰 陈杨 李义兵[1,2] 张伟光[1,2] 曹雪娇 吕宁宁 Wen Yunfeng;Chen Yang;Li Yibing;Zhang Weiguang;Cao Xuejiao;LüNingning(College of Materials Science and Engineering,Guilin University of Technology,Guilin,Guangxi 541004;Key Laboratory of New Technology for Non Ferrous Metals and Materials Processing,Guilin University of Technology,Guilin,Guangxi 541004;Key Laboratory of Metallurgical Emission Reduction and Comprehensive Utilization of Resources,Anhui University of Technology,Maanshan,Anhui 243002)

机构地区：[1]桂林理工大学材料科学与工程学院,广西桂林541004 [2]桂林理工大学有色金属及材料加工新技术教育部重点试验室,广西桂林541004 [3]安徽工业大学冶金减排与资源综合利用教育部重点试验室,安徽马鞍山243002

出　　处：《非金属矿》2024年第6期6-8,13,共4页Non-Metallic Mines

基　　金：国家自然科学基金联合基金项目(U23A20557);冶金工程与资源综合利用安徽省重点试验室开放基金(SKF24-01)。

摘　　要：以广西灌阳石英砂为研究对象,探究酸对石英砂的最优浸出方式,研究了酸浸时间、酸浸温度、酸浸浓度、粒径大小等对石英砂提纯效果的影响。结果表明,混酸对Fe等金属杂质去除效果显著,酸浸温度40℃,酸浸时间5 h,4%草酸+1%HF对石英砂提纯效果最佳,白度达到87.8%,SiO_(2)含量(质量分数,下同)达到99.91%,Fe_(2)O_(3)含量降至0.0220%。此外,还与企业传统工艺对比分析了经济价值与可行性。Taking Guanyang quartz sand in Guangxi as the research object,the optimal leaching method of acid on quartz sand was explored.Under the optimal leaching method,the effects of acid leaching time,acid leaching temperature,acid leaching concentration and particle size on the purification effect of quartz sand are studied.The results show that the mixed acid has a significant effect on removing metallic impurities such as Fe.The best purification effect of quartz sand is achieved by acid leaching temperature of 40℃,acid leaching time of 5 h,and 4%oxalic acid+1%HF.The whiteness reaches 87.8%,the SiO_(2) content reaches 99.91%and the Fe_(2)O_(3) content decreases to 0.0220%.In addition,the economic value and feasibility is analyzed and compared with the traditional technology.

关 键 词：石英砂 提纯 酸浸 杂质 白度 高纯石英砂 

分 类 号：TD985[矿业工程—选矿] TQ420.6[化学工程]