上房沟钼矿辉钼矿俄歇能谱分析  

Auger Electron Spectroscopy Analysis of Shangfanggou Molybdenite

作　　者：王守敬[1] 卫敏[1] 赵平[1] 卞孝东[1] 马驰[1] 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所国家非金属矿资源综合利用工程技术研究中心,河南郑州450006

出　　处：《矿物学报》2012年第4期543-547,共5页Acta Mineralogica Sinica

基　　金：地质调查项目(编号1212010816038);国家"十一五"科技支撑计划课题(编号:2008BAB32B11)

摘　　要：通过扫描电镜分析和俄歇能谱分析对上房沟钼矿原矿、浮选精矿和浮选尾矿以及三道庄钼矿(易选矿)中辉钼矿进行了表面元素组成和微形貌研究。结果显示上房沟钼矿中辉钼矿表面呈陡峭阶梯状,且氧化强烈,而三道庄钼矿中辉钼矿表面平整,氧化较弱。综合分析认为上房沟钼矿中辉钼矿陡峭阶梯状表面会增加其表面极性面的比重;表面氧化会增加辉钼矿表面非极性面的表面能,改变其表面疏水性。两者都会降低辉钼矿的可浮性。因此上房沟钼矿中辉钼矿表面氧化程度高、表面不平整是影响其浮选效果的主要因素之一。The surface chemical composition and surface conformation of the molybdenite in the primary mineral, the flotation concentrate and the flotation tailing of Shangfanggou molybdenite and Sandaozhuang molybdenum which is easy to be separated were studied by using AES and SEM. The results show that the surface of Shangfanggou molybdenite is lader-like, and oxidized. As a contrast, the surface of Sandaozhuang molybdenite is flat, with low degree of oxidation. The lader-like surface will increase the ratio polar face in the surface of molybdenum. The surface oxidation will increase the surface energy, and change the hydrophobicity of molybdenum surface. But all of above will decrease the floatability of the molybdenum. Therefore the lader-like surface and surface oxidation are main factors making the flotation of Shangfanggou molybdenum very difficult.

关 键 词：上房沟钼矿 辉钼矿 表面元素组成和微形貌 俄歇能谱分析 扫描电镜分析 

分 类 号：P578.2[天文地球—矿物学] P579[天文地球—地质学]