摘要
某矿山金矿石样品中存在中粗颗粒金,颗粒金的存在将对分析样品的均匀性和代表性产生影响。通过棒磨、密封粉碎及盘磨等方式研究,选择出最优的样品加工方式,同时通过分析方法比对,选择出最优的样品分析方法。实验确定金矿石采用圆盘细碎机加工至样品粒度不大于0.074 mm,混匀后即获得分析试样。分析试样经王水消解后采用泡沫吸附进行富集,火焰原子吸收光谱法测定。通过研究,取得最优的金矿样品加工和分析方案,为某矿山提供了高品质的金储量评估数据。
There is medium and coarse grain gold in the gold ore sample of a mine.The presence of gold particles will affect the uniformity and representativeness of the sample.Through the research of rod grinding,sealing pulverization and disc grinding,the optimal sample processing method is selected,and the optimal sample analysis method is selected through comparison of analytical methods.Then samples are processed into less than 0.074 mm by disc mill.After mixing,the analytical sample is obtained.Samples are enriched by foam enrichment and determined by flame atomic absorption spectrometry after being digested by aqua regia.Through research,the optimal gold ore sample processing and analysis plan was obtained,which provided high-quality gold reserve evaluation data for this mine.
作者
夏珍珠
林翠芳
XIA Zhenzhu;LIN Cuifang(Zijin Mining Group Co.,Ltd,Shanghang,Fujian 364200,China)
出处
《中国无机分析化学》
CAS
2020年第1期6-9,共4页
Chinese Journal of Inorganic Analytical Chemistry
关键词
中粗粒级金矿石
样品加工
最优条件
medium and coarse-grained gold ore
preparation of samples
optimum condition
作者简介
夏珍珠,女,教授级高级工程师,主要从事分析方法应用研究和实验室管理。E-mail:xia_zhenzhu@zijinmining.com。
