利用粉煤灰合成A型沸石分子筛的实验研究  

Experimental Study on Synthesis of Zeolite A from Coal Fly Ash

作　　者：李智专[1] 薛鹏[1] 李伟芳[1] 李晓强[1] 张宏[1] 

机构地区：[1]烟台大学环境与材料工程学院,山东烟台264005

出　　处：《中国资源综合利用》2011年第1期43-45,共3页China Resources Comprehensive Utilization

摘　　要：以烟台某电厂排放的粉煤灰固体废弃物为原料,对原料进行预处理及水热合成实验合成出沸石分子筛,经XRD表征可知产物为A型分子筛。通过试验确定最佳合成条件:焙烧温度为750℃、碱度比为1.3、晶化温度为100℃以及晶化时间为10 h。在此条件下合成的沸石结晶度较高,具有很好的应用前景。Zeolite were synthesized by using coal fly ash as raw material,which were discharged from a power plant in Yantai.Products were obtained by pre-treating and hydrothermal synthesizing procedures and characterized by XRD.The optimal parameters were determined by orthogonal experiments： the calcinating temperature is 750 ℃,the mass ratio of NaOH and fly ash is 1.3,the crystallizing temperature is 100 ℃,and the crystallizing time is 10 h.The synthesized products under these optimum conditions have a broad application.

关 键 词：粉煤灰 A型分子筛 水热合成 废弃物利用 

分 类 号：X705[环境科学与工程—环境工程]