高砂膨润土碱融水热合成P型沸石的实验研究  

Experimental Study on the Synthesis of PZeolites from High Content Silica of Bentonite byAlkali Melt and Hydrothermal Methods

作　　者：孔德顺[1] 李志[1] 吴红[1] 连明磊[1] 陈坤[1] 

机构地区：[1]六盘水师范学院化学与化工系,贵州六盘水553004

出　　处：《非金属矿》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)

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.

关 键 词：膨润土 碱融 水热合成 P型沸石 

分 类 号：TQ424.25[化学工程] TD985[矿业工程—选矿]