晶化条件对SAPO分子筛合成及性能的影响  

EFFECTS OF CRYSTALLIZATION CONDITION ON SYNTHESIS AND PROPERTIES OF SAPO MOLECULAR SIEVES

作　　者：付晔[1] 李雪辉[1] 王乐夫[1] 谭宇新[2] 

机构地区：[1]华南理工大学,广州510640 [2]广州市交通委员会,广州510640

出　　处：《环境工程》2001年第1期53-55,共3页Environmental Engineering

基　　金：广东省自然科学基金!资助项目 (980 51 2 )

摘　　要：用水热晶化法合成SAPO分子筛 ,通过XRD分析表明 ,在原料及合成物料配比不变的条件下 ,采用不同的晶化时间和晶化温度可以合成出纯的SAPO 5分子筛、纯的SAPO 34分子筛以及SAPO 5和SAPO 34的混合物。以不同的SAPO分子筛为载体的催化剂在NO选择性还原为N2 反应中的催化性能也不同 ,并且耐湿热稳定性也不同。The SAPO molecular sieves were synthesized by hydrothermal crystallization.The products were characterized by XRD.The results indicated that pure SAPO 34,SAPO 5+SAPO 34 and pure SAPO 5 can be synthesized by using different time and temperature of crystallization,in condition of using same sources and same ratio of the reactants.The catalytic properties in selective reduction of NO and hydrothermal stability of the catalysts,which were prepared by using SAPO 34 and SAPO 5 as supports,were different.

关 键 词：SAPO 分子筛 晶化条件 合成 性能 

分 类 号：TQ426[化学工程]