三水铝土矿活性硅含量测定影响因素  

Study on Influencing Factors of Active Silicon Content Determination in Gibbsite

作　　者：宋飞 岳春雷 孙博 薛妍 冯丽丽 刘美东 张庆建 Song Fei;Yue Chunlei;Sun Bo;Xue Yan;Feng Lili;Liu Meidong;Zhang Qingjian(Technical Center of Qingdao Customs,Qingdao,Shandong,China;Qingdao University of Technology,Qingdao,Shandong,China)

机构地区：[1]青岛海关技术中心,山东青岛266500 [2]青岛理工大学,山东青岛266520

出　　处：《矿产综合利用》2022年第5期181-185,共5页Multipurpose Utilization of Mineral Resources

基　　金：国家重点研发计划(2018YFF0215400);海关总署科研计划项目(2019HK008)。

摘　　要：本文主要研究了影响测定三水铝土矿中活性硅含量的因素。活性硅是三水铝土矿的一个重要指标,利用电感耦合等离子体发射光谱建立测定三水铝土矿活性硅的方法。实验优化了样品前处理条件,确定了较佳称样量、溶样条件、氢氧化钠浓度和体积、定容体积、摇匀频次、煮沸时间等。结果表明,压力溶弹溶样能得到较好的检测结果。利用标准加入法,方法的回收率为99.13%~100.70%,方法的检出限为0.02 mg/L,相对标准偏差为0.0191%。本方法操作简便快速重复性好,准确度高,可以满足三水铝土矿活性硅含量的检测工作。This paper mainly studies the factors affecting the determination of active silicon content in gibbsite.Active silicon is an important index of gibbsite.A method for the determination of active silicon in gibbsite was established by inductively coupled plasma atomic emission spectrometry(ICP-AES).The sample pretreatment conditions were optimized,and the optimal sample weight,sample dissolution conditions,sodium hydroxide concentration and volume,constant volume,shaking frequency and boiling time were determined.The results show that the pressure dissolution sample can get better detection results.The recovery of the method is 99.13%~100.70%,the detection limit is 0.02 mg/L,and the relative standard deviation is 0.0191%.The method is simple,rapid,reproducible and accurate,which can be used for the determination of active silicon content in gibbsite.

关 键 词：三水铝土矿 活性硅 前处理 

分 类 号：TD989[矿业工程—选矿]