类固相法快速合成高钙镁离子交换性能的P型分子筛  

Rapid Synthesis of Zeolite P with High Calcium and Magnesium Ion Exchange Properties by Like-Solid Phase Method

作　　者：张恕 郭宏飞[1] 刘秀伍[1] 陈学青[1] 赵斌[1] 曹吉林[1] ZHANG Shu;GUO Hong-Fei;LIU Xiu-Wu;CHEN Xue-Qing;ZHAO Bin;CAO Ji-Lin(Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving,School of Chemical Engineering and Technology,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北省绿色化工与高效节能重点实验室河北工业大学化工学院

出　　处：《无机化学学报》2019年第12期2323-2330,共8页Chinese Journal of Inorganic Chemistry

基　　金：河北省自然科学基金(No.B2018202330);河北省高等学校科学技术研究项目(No.ZD2019042)资助

摘　　要：以硅铝干凝胶为硅源和铝源,氢氧化钠为碱源,采用类固相法快速合成了P型分子筛,并通过X射线衍射(XRD)、扫描电镜(SEM)等手段对产品进行了表征分析。结果表明,硅铝干凝胶的组成nSiO2/nAl2O3=5,晶化时间和晶化温度分别为3 h、140℃,原料的组成nNa2O/nSiO2=0.26、nH2O/nSiO2=18.51时,可制备形貌均一、结晶良好的P型分子筛产品。与传统水热法相比,该方法极大地减少了合成过程的用水量,缩短了晶化时间,提高了产品的钙镁离子交换性能,从整体上优化了P型分子筛的合成工艺。The synthesis of zeolite P by like-solid phase method was studied,using silicon aluminum xerogels as silicon source and aluminum source,and the sodium hydroxide as the alkali source.The products were characterized and analyzed by methods such as X-ray diffraction(XRD) and scanning electron microscopy(SEM).The results showed that the zeolite P product with uniform morphology and good crystallinity can be prepared,when the nSiO2/nAl2 O3 of the silicon aluminum xerogels was 5,the crystallization time and crystallization temperature were 3 h and 140℃,and the nNa2 O/nSiO2 and nH2 O/nSiO2 of the raw material were 0.26 and 18.51,respectively.Compared with the traditional hydrothermal method,the like-solid phase method greatly reduces the amount of water used in the synthesis process,shortens the crystallization time,improves the ion exchange performances of Ca2+and Mg2+,and overall optimizes the synthesis process of zeolite P.

关 键 词：类固相法 P型分子筛 水硅比 钙镁离子交换性能 

分 类 号：O614.31[理学—无机化学] O613.51[理学—化学]