化学物相分析法测定瓮福磷尾矿中钙镁磷元素形态含量  

Determination of Occurrence States of Calcium,Magnesium,Phosphorus in Wengfu Phosphorus Tailings by Chemical Phase Analysis

作　　者：金绍祥[1] 

机构地区：[1]贵州有色地质化验监测中心,贵州都匀558004

出　　处：《岩矿测试》2011年第3期357-360,共4页Rock and Mineral Analysis

摘　　要：用化学物相分析法测定瓮福磷尾矿中钙、镁、磷元素形态含量。结果表明,磷尾矿中钙主要以白云石的形式赋存,并有少量以方解石、磷酸盐形式存在;镁主要以白云石的形式赋存,并有少量以磷酸盐、硅酸盐形式存在;磷主要以磷灰石的形式赋存,并有少量以铁氧化物、独居石、磷钇矿形式存在。各元素形态加标回收率为97.6%-107.2%,相对标准偏差（RSD,n=12）为0.77%-4.85%。各元素形态分析结果表现出较好的稳定性,表明采用化学物相分析法测定瓮福磷尾矿中钙、镁、磷元素形态含量结果准确可靠。The contents of calcium,magnesium and phosphorus species in Wengfu Phosphorus Tailings were determined by chemical phase analysis method.The results showed that calcium existed mainly as dolomite with a few as calcite and phosphate,magnesium existed mainly as dolomite with a few as phosphate and silicate and phosphorus existed mainly as phosphate with a few as iron oxides,monazite and xenotime.Standard recoveries for all species of the elements were 97.6%-107.2% with precision of 0.77%-4.85% RSD（n=12）.Speciation analysis results presented a good stability,which indicated that the analytical results of ccurrence states of Ca,Mg and P in Wengfu Phosphorus Tailings by chemical phase analysis method were accurate and reliable.

关 键 词：钙 镁 磷 化学物相分析 元素赋存状态 磷尾矿 

分 类 号：P575.9[天文地球—矿物学]