摘要
研究了膨润土的成分,采用加碱在400℃下碱融2h的方法,活化了膨润土中的蒙脱石和石英,获得了合成P型沸石的高活性原料,采用水热合成的方法,通过单因素实验,确定了合成P型沸石的适宜条件为:n(SiO2)/n(Al2O3)=5、n(Na2O)/n(SiO2)=1.4、n(H2O)/n(Na2O)=50、老化时间2h、老化温度30℃、在90℃下晶化9h。XRD和SEM分析结果表明,产物为纯净的P型沸石,多呈球形,粒径约为2μm。
The chemical composition of the bentonite was analyzed, the montmorillonite and the silica of the bentonite were activated by alkali melt at 400 ℃ for 2 h, then the high active pretreated materials was obtained. The optimum conditions of synthesis P zeolites were determined by single factor experiments as follows： n（SiO2）/n（Al2O3）=5, n（Na2O）/n（SiO2）= 1.4, n（H2O）/n（Na2O）=50, aging at 30 ℃ for 2 h, crystallization at 90 ℃ for 9 h. The XRD and SEM analysis results showed that the products were pure P zeolites, most of them were spherical and the average particle size was 2 μm.
出处
《非金属矿》
CAS
CSCD
北大核心
2013年第1期18-20,共3页
Non-Metallic Mines
基金
贵州省煤炭资源清洁高效利用科研实验平台(黔科平台[2011]4003)
六盘水市科技创新人才团队建设(52020-2012-04-01-02)
关键词
膨润土
碱融
水热合成
P型沸石
bentonite alkali melt hydrothermal synthesis P zeolites
