粉煤灰中含有一些活性较差的莫来石(M)和石英(Q)结晶体,在直接水热条件下,它们很难参与沸石晶体的合成反应,应对粉煤灰进行活化处理。通过调整粉煤灰原料的碱料比、Si/Al等参数,进行了湿法加碱-煅烧活化粉煤灰水热合成沸石的实验,实验结果证明湿法加碱-煅烧活化的效果最好,尤其是当碱料比为0.6∶1时,在实验条件下合成了结晶度和白度均在80%左右的P型沸石晶体样品。 Fly ash contains some less active mullite (M) and quartz (Q) crystals, which are difficult to participate in the synthesis of zeolite crystals under direct hydrothermal conditions and should be activated by fly ash. The results of wet-process alkali-calcined activated fly ash hydrothermal synthesis of zeolite by adjusting the ratio of raw materials of fly ash, Si / Al and other parameters, the experimental results show that the best wet-base-calcination activation effect , Especially when the ratio of base to material is 0.6: 1, P-type zeolite crystals with crystallinity and whiteness of about 80% were synthesized under the experimental conditions.