摘要
工艺矿物学研究一直是侦破各种矿权转让及矿产品掺假案件的重要手段之一。以MLA(Mineral Liberation Analyser)矿物参数自动分析系统为主要工艺矿物学研究手段,结合扫描电镜、化学多元素分析、能谱分析等方法,为广西某铜铅锌银多金属矿产品掺假案件提供了可靠证据。研究发现,样品中银含量为1 630 g/t,主要以颗粒状金属银存在,还有部分皮壳状硫化银混合物包裹金属银,这些特征是天然矿物或物理选矿矿产品所不具备的。
Process Mineralogy Research has been one of the essential analysis methods in the trans-fer of mineral rights and the case of adulteration in mineral products.The research is mainly undertaken by MLA(Mineral Liberation Analyser),accompanied by SEM,chemical analysis and EDS to evidence the case of mineral product adulteration in Guangxi Province.The chemical assay of Ag is 1 630 g/t in the ore,most of the silver exists in the form of granular,or occurred in the form of grained silver in silver sulphide.All of these forms are not existed in the natural mineral or the products of physical mineral pro-cessing.
出处
《现代矿业》
CAS
2016年第6期59-61,共3页
Modern Mining
