X射线衍射增量法在三水铝石定量分析中的应用--以桂西堆积型铝土矿中的红土为例

简述了X射线衍射增量法进行定量分析的原理、实验过程和实验条件,并用该方法对桂西堆积型铝土矿中的红土三水铝石进行了定量分析.实验表明,在红土样品中加入一定量的标准样品后,利用X射线衍射增量法测定红土样品中三水铝石的含量,与原有的利用化学物相分析方法相比,具有不受红土样品中物相数量和矿物组合限制的优点;同时,X射线射线衍射增量法具有简便、快速、准确、经济的特点,是测定桂西堆积型铝土矿中的红土中三水铝石最为理想的定量分析方法.

APPLICATION OF X-RAY DIFFRACTION INCREMENT METHOD TO QUANTITATIVE ANALYSIS FOR GIBBSITE:AN EXAMPLE OF RED SOIL FROM ACCUMULATED TYPE BAUXITE IN WESTERN GUANGXI

The paper has briefly described the basic principle of X-ray diffraction increment method, experiment process and conditions and successfully applied the method in quantitative analysis on gibbsite in red soil from accumulated type bauxite in Western Guangxi. The experiment has proved that if the red soil is as mixed with certain standard sample, the gibbsite content measured by X-ray diffraction increment method would not be affected by the mineral phases number and mineral assemblage in the red soil by comparison with the result of the analysis on chemical phases. On the other hand, the method is also characterized by simple process, fast speed, high accuracy and low cost. Therefore,X-ray diffraction increment method is an ideal method for quantitative analysis on gibbsite in the red soil from accumulated type of bauxite in the region.