本文選題：高純度ZSM-型沸石 + 粉煤灰　； 參考：《人工晶體學報》2017年07期

【摘要】：采用經(jīng)堿熔融-離心提取處理后的粉煤灰為原料,經(jīng)水熱反應研究兩步法合成高純度ZSM-5型沸石的過程,探討了堿灰比、焙燒溫度對硅鋁溶出量的影響,研究了堿度、晶化時間、晶化溫度與硅鋁比對合成ZSM-5型沸石的影響。結果表明:堿灰比為2.3∶1,焙燒溫度為680℃時可獲得最高的硅鋁溶出量;當SiO_2/Na_2O=7(摩爾比),SiO_2/Al_2O_3=45(摩爾比),晶化時間為68 h,晶化溫度為180℃時可獲得高純度的ZSM-5型沸石。
[Abstract]:High purity ZSM-5 zeolite was synthesized by hydrothermal reaction with fly ash extracted by alkali melt and centrifugation. The effects of alkali / fly ash ratio and calcination temperature on the dissolution amount of silicon and aluminum were discussed. The alkalinity and crystallization time were studied. Effect of crystallization temperature and Si / Al ratio on synthesis of ZSM-5 zeolite. The results show that the highest amount of dissolution of Si-Al can be obtained when the ratio of alkali to cement is 2.3: 1 and the calcination temperature is 680 鈩，

本文編號：1824294