一种定量测定粘土矿物的X射线衍射方法

A QUANTITATIVE DETERMINATION METHOD OF CLAY MINERALS WITH X-RAY DIFFRACTION

对于粘土矿物的定量计算,采用X射线衍射的方法。在加热550℃以后,伊利石、蒙脱石和伊利石/蒙脱石混层矿物在10A形成X射线衍射蜂。在自然定向的X射线衍射图中,高岭石(001)和绿泥石(002)具有7A衍射峰。把7A和10A峰作为新的二元体系,应用绝热理论和乙二醇处理后的X射线衍射谱图,计算出粘士矿物的百分含量。

For quantitative estimation of clay minerals the method of X-ray diffraction is used. after heating at 550℃, illite,montmorillonite and mixed-layer illite-mont morillonite produce 10(?) X-ray diffraction peak. Kaolinite (001) and chlorite (002) have 7(?) X-ray diffraction peak, under the condition that the sample preparation is naturally oriented. Taking 7(?) peak and 10(?) peak as new binary system, percent of clay minerals is estimated conforming to adiabatic theory and X-ray diffraction pattern of sample treated by glycol.