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用Ｘ射线衍射方法，研究了Ｃａ２＋、Ｓｒ２＋和Ｂａ２＋离子交换１３Ｘ分子筛的结构。证明离子交换后的分子筛基本结构未变，仍为立方形；但晶胞常数，衍射峰的数目和强度却发生了变化。文章讨论了衍射谱结构与吸附性能之间的关系。
X-ray diffraction method was used to study the structure of 13X molecular sieves exchanged by Ca2 +, Sr2 + and Ba2 + ions. It is proved that the basic structure of the molecular sieve after ion exchange is unchanged and remains cubic. However, the number and intensity of unit cell constant and diffraction peak have changed. The article discusses the relationship between the structure of the diffraction spectrum and the adsorption performance.