河南信阳上天梯沸石矿工艺矿物学研究

为科学评价和开发利用信阳上天梯沸石矿资源，以上天梯沸石矿为对象，通过光学显微镜观测分析、X射线荧光光谱分析、X射线衍射仪分析、扫描电镜及矿物自动分析仪等分析测试技术，开展了矿石工艺矿物学研究。研究表明，上天梯沸石矿具备较高硅铝比(SiO₂/Al₂O₃)，沸石矿组成矿物达25余种，主要组成矿物为斜发沸石(含量20%~85%)，晶体发育良好，呈板片状或厚板状形态。斜发沸石颗粒90%以上粒径大于150 μm，在+74 μm、-74+45 μm、-45 μm的解离度分别为25.02%、27.99%、56.9%，连生关系主要以与钾长石、石英及蒙脱石的两相连生为主。 

Process Mineralogy Investigations on Zeolite Ore in Xinyang Shangtianti,Henan

In order to scientific assess and proper utilize the zeolite resources of Xinyang Shangtianti, the mineralogy characteristics of zeolite ore were investigated, using various techniques including microscopic analysis, X-ray diffraction analysis, X-ray fluorescence spectrometer analysis, scanning electron microscope and automatic mineral identification and characterization system. The results show that zeolite ore of Shangtianti has high SiO₂/Al₂O₃ ratio and the mineral species detected in zeolite ore are up to 25. Clinoptilolite is the dominant mineral specie (mineral content ranges from 20% to 80%). The crystals of clinoptilolite are well developed, show plate-like or thick plate-like structure. 90 % of the clinoptilolite crystals' size is greater than 150 μm. The monomer dissociation degree of clinoptilolite at +74 μm、-74+45 μm、-45 μm is 25.02%、27.99%、56.9%, respectively, and clinoptilolite has paragenetic relation with orthoclase, quartz and montmorillonite.