粉煤灰合成分子筛的研究  

Synthesis of Zeolites from Coal Fly Ash

作　　者：訾昌毓 李艳红[1] 赵文波[1] 杨荣[1] 晋振东 ZI Chang-yu;LI Yan-hong;ZHAO Wen-bo;YANG Rong;JIN Zhen-dong(School of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500,China;Shandong Chambroad Petrochemicals Co.,Ltd.,Binzhou 256500,China)

机构地区：[1]昆明理工大学化学工程学院,昆明650500 [2]山东京博石油化工有限公司,滨州256500

出　　处：《硅酸盐通报》2018年第12期4001-4006,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(21766013);昆明理工大学实验室建设与管理研究项目(SYYJ31);煤科学与技术省部共建国家重点实验室培育基地开放课题资助项目(mkx201403)

摘　　要：在中国,粉煤灰合成分子筛是处理粉煤灰的一个重要方法,粉煤灰正成为沸石合成的一个重要原料。比较了水浴合成和微波合成制备分子筛的特点。XRD和SEM分析表明,微波晶化合成的沸石外观形状更加规则,均为圆形或者椭圆形的小球,且微波晶化合成的沸石分布均匀,结构致密。微波晶化可以快速晶化产生沸石,但随着晶化时间的推移,由于微波晶化的晶化反应太过剧烈,不利于核的增长。The synthesis of zeolites from fly ash has become an increasingly promising remedy to the crisis of coal fly ash production and disposal in China.In recent studies,coal fly ash was proven to be a suitable feedstock for the synthesis of essential industrially used zeolite.The process of practical application of fly ash derived from coal combustion by means of its synthesis into zeolite materials.Two methods of such sunthesis of fly ash were examined,namely the hydrotherma synthesis and microwave synthesis.The synthesized samples were characterized by XRD,SEM.The shape of the zeolite synthesized by microwave crystallization is more regular,and all of them are round or oval globules,and it is evenly distributed and dense in structure.The microwave crystallization can rapidly crystallize to produce zeolite,but as the crystallization time goes by,the crystallization reaction due to microwave crystallization is too severe,but it is not conducive to nuclear growth.

关 键 词：粉煤灰 沸石合成 微波合成 

分 类 号：TQ172[化学工程—水泥工业]