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从化学组成看,分子节是一种人造沸石——多水合铝硅酸盐;从结构和性能看,是一种新型选择性吸附剂。沸石是人们所熟知的无机天然矿物,它具有晶体结构。这类矿物在自然界中由于形成条件不同,作用于阴离子骨架(由Si-O和Al-O四面体构成)上的力可以不同。按照湼马尔克等的说法,如沸石阴离子骨架中三个相互垂直的力相等,则形成稳定的三度空间网状结构的晶格,否则形成层状或纤维状结构的晶格。常见的天然沸石列于表1中。在天然沸石中,当它们晶沟中的水分被除去时,纤维状和层状沸石的晶体骨架会强
From the chemical composition, the molecular section is an artificial zeolite - hydrated aluminum silicate; from the structure and performance, is a new type of selective adsorbent. Zeolite is a well-known inorganic natural mineral that has a crystalline structure. The forces acting on the anionic framework (composed of Si-O and Al-O tetrahedra) may vary due to the different formation conditions of these minerals in nature. According to Neelekke et al., If the three mutually perpendicular forces in the zeolite anion backbone are equal, a stable lattice of three-dimensional reticular structures is formed, otherwise a lattice of layered or fibrous structures is formed. Common natural zeolites are listed in Table 1. In natural zeolites, the crystalline framework of fibrous and layered zeolites is strong when the moisture in their gutters is removed