某硫磷铝锶矿工艺矿物学研究

硫磷铝锶矿是一种尚未充分开发利用的矿产资源。以四川地区某硫磷铝锶原矿为研究对象，通过扫描电镜矿物自动定量分析系统(AMICS)、扫描电镜能谱分析(SEM-EDS)、X射线衍射分析(XRD)、偏光显微镜和激光剥蚀电感耦合等离子体质谱仪(LA-ICP-MS)等方法，对该矿的化学元素组成、矿物组成及含量、粒度特征、单体解离情况及连生关系等进行了详细研究。结果表明：该矿为磷质岩型矿石，主要组成矿物为胶磷矿，同时含有少量硫磷铝锶石、高岭石、磷铝钙石及黄铁矿；矿石中的磷主要以胶磷矿的形式存在，连生关系较简单，主要以与白云母、高岭石等矿物的两相连生为主；其次为硫磷铝锶石，硫磷铝锶石含有硫杂质，部分硫磷铝锶石与磷铝钙石包裹嵌布，复杂连生，是造成该硫磷铝锶矿资源化利用困难的主要原因。

Study on Process Mineralogy of a Svanbergite ore in Sichuan

Svanbergite is a mineral resource that has not been fully developed and utilized. Taking a svanbergite in Sichuan as the research object, through scanning electron microscope mineral automatic quantitative analysis system (AMICS), scanning electron microscope energy spectrum analysis (SEM-EDS), X-ray diffraction analysis (XRD), polarizing microscope, polarizing Microscopy and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and other testing methods were used to study the chemical element composition, mineral composition and content, particle size characteristics, monomer liberation and intergenerational relationship of the ore in detail. The research results show that: the ore is phosphate rock type, the main mineral is collophanite, and it also contains a small amount of svanbergite, kaolinite, phosphocalcite and pyrite. The phosphorus in the ore is mainly collophanite. The intergenerational relationship is relatively simple. Svanbergite mainly associated with minerals such as muscovite and kaolinite. Svanbergite contains sulfur impurities and part of svanbergite are wrapped and embedded with phosphomolyme. The complex intergrowth accounts for the difficulty in resource utilization of svanbergite ore.