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“分子筛”最初是指无水晶体沸石,其临界直径具有选择性地分离物质分子的能力。沸石有晶体和非晶体之分。自然界中,大约有40种沸石。人们较为熟悉的有钠沸石、菱沸石、方沸石、插晶沸石、八面沸石、毛沸石和丝光沸石。
“Molecular sieve” originally refers to an anhydrous crystalline zeolite whose critical diameter has the ability to selectively separate substance molecules. Zeolite crystal and non-crystalline points. There are about 40 types of zeolite in nature. People are more familiar with sodium zeolite, chabazite, analcime, crystalline zeolite, faujasites, erionite and mordenite.