煅烧对粉煤灰合成4A沸石的作用  

Effects of Calcination on Synthesis of 4A Zeolite Using Coal Fly Ash

作　　者：李方文[1] 魏先勋[1] 马淞江[2] 张德见[1] 翟云波[1] 

机构地区：[1]湖南大学环境科学与工程系,长沙410082 [2]湘潭工学院环境工程与化工新技术研究所,湘潭411201

出　　处：《环境科学与技术》2003年第4期13-14,17,共3页Environmental Science & Technology

摘　　要：研究了煅烧对粉煤灰合成4A沸石除炭(有机物)增白和活化的两个作用,试验确定了粉煤灰最佳的锻烧条件:温度为850℃,时间为2h。在此条件下煅烧,通过XRD、SEM分折和白度测定,结果显示:破坏了粉煤灰中的晶相结构和溶解了玻璃体,白度达到了63。Waste fly ash from coal fired power plants is utilized to the synthesis of zeolite. This paper presents the study of calcinations of fly ash and its effects on 4A Zeolite with respect of temperature and time. It is reported that whiteness of 4A Zeolite increases under the optimum condition of calcinations. Instruments such as SEM and XRD are used for investigation.

关 键 词：煅烧 粉煤灰 4A沸石 除炭增白 活化 

分 类 号：X705[环境科学与工程—环境工程]