煤系高岭土微波合成NaA分子筛干燥剂  

Microwave Assisted Synthesis of NaA Zeolite Dryer Using Coal Kaolinite

作　　者：江露英[1] 吴丽芳[1] 张巍[1] 万林[1] 郑昆鹏[1] 

机构地区：[1]武汉科技大学资源与环境工程学院,武汉430081

出　　处：《硅酸盐通报》2010年第6期1263-1268,1274,共7页Bulletin of the Chinese Ceramic Society

基　　金：武汉科技大学绿色制造与节能减排科技研究中心开放基金(项目编号:B0917)

摘　　要：本文是以内蒙煤系高岭土为原料,在不同的陈化时间、不同的成核时间、不同的晶化时间以及不同的晶种添加量条件下微波合成NaA分子筛;并通过SEM,XRD测试手段对合成产物的形貌和结晶情况进行了表征,以此对实验结果和各合成因素进行了分析和研究。结果表明,四个因素均会影响分子筛静态吸水量,其中晶化时间影响最大;并发现了微波合成需要高岭土充分的溶解;微波加热强度大,易发生转晶。本文合成的NaA分子筛的静态吸水量最高可达28.26wt%。In this paper,coal kaolinite was used as raw material to synthesize NaA zeolite by microwave assisted.NaA zeolite had been synthesized in different conditions of ageing time,nucleation time,crystallization time,the dosage of seed.Then the NaA zeolite were charactered by SEM and XRD.And the synthesis factors which effected the experimental results were analyzed.The results showed that these factors all effected the static water absorption especially the crystallization time.The fully complete dissolution of kaolin in microwave synthesis of NaA zeolite was necessary.The heating intensity of microwave was so great that the NaA zeolite was easy to transform into the other phases.The static water adsorption of the NaA zeolite reached 28.26wt%.

关 键 词：煤系高岭土 微波合成 NaA分子筛干燥剂 

分 类 号：TQ425[化学工程]