碱性活化法合成粉煤灰沸石的研究进展  

Research Process on the Zeolite Synthesis by Fly Ash Used Alkaline-Activation Method

作　　者：邓慧[1] 张启凯[1] 白英芝[1] 

机构地区：[1]辽宁石油化工大学化学化工环境学部,抚顺113001

出　　处：《硅酸盐通报》2014年第7期1706-1714,共9页Bulletin of the Chinese Ceramic Society

摘　　要：粉煤灰碱性活化是粉煤灰沸石合成的有效途径,本文综述了粉煤灰沸石碱性活化的方法,比较了干法和湿法的活化效果及对生成的沸石类型和沸石CEC交换能力的影响,并介绍了碱性活化方法中的重要影响要素。碱性试剂主要通过破坏粉煤灰中的惰性晶相物质使其得到活化,湿法因为有水的介入活化效果优于干法,NaOH的活化作用优于KOH,不同Si、Al组成的粉煤灰合成的沸石类型不同,水热温度和水的含量影响合成沸石的类型,高温煅烧可以细化晶粒的粒度。The alkali-activation of fly ash is an effectient way for zeolite synthesis. This paper summarized alkali-activation methods of flyash, compared the effect of dry method and wet method and their influence on zeolite type and CEC exchange ability, and at the same time, introduced the important factors of alkali-activation methods. Alkaline reagents activate flyash mainly through destructing the inert crystalline substances. Wet method was batter than dry method due to intervention of water, and activation of NaOH was superior to KOH. Different Si, Al composition generated different zeolite, and hydrothermal temperature and water content affect the type of synthetic zeolite. High temperature calculation could refine the grain size.

关 键 词：粉煤灰 碱性活化 沸石 

分 类 号：TQ649[化学工程—精细化工]