本工作研究了以水玻璃作为二氧化硅原料合成Y型沸石分子筛。采用添加晶核中心和降低反应混合物碱度,由水玻璃和铝酸钠的水混合物很易制得硅铝比大于4的NaY沸石分子筛。实验结果表明,这个方法具有原料价廉,合成周期短和重复性好的优点。对于晶核中心的性质和作用还作了讨论。 This work has studied the synthesis of Y zeolite from water glass as a raw material of silica. NaY zeolite molecular sieves having a silica to alumina ratio greater than 4 can be easily prepared from aqueous mixtures of sodium silicate and sodium aluminate by adding nuclei centers and reducing the alkalinity of the reaction mixture. Experimental results show that this method has the advantages of cheap raw materials, short synthesis cycle and good repeatability. The nature and role of the nuclei center are also discussed.