| 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 | 单位 | E-mail | | 张恕 | 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, 天津 300130 | | | 郭宏飞 | 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, 天津 300130 | | | 刘秀伍 | 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, 天津 300130 | | | 陈学青 | 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, 天津 300130 | | | 赵斌 | 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, 天津 300130 | 1990014@hebut.edu.cn | | 曹吉林 | 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, 天津 300130 | caojilin@eyou.com |
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| 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、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。 |
| 关键词: 类固相法 P型分子筛 水硅比 钙镁离子交换性能 |
| 基金项目: 河北省自然科学基金（No.B2018202330）和河北省高等学校科学技术研究项目（No.ZD2019042）资助。 |
| Abstract: 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/nAl2O3 of the silicon aluminum xerogels was 5, the crystallization time and crystallization temperature were 3 h and 140℃, and the nNa2O/nSiO2 and nH2O/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. |
| Keywords: like-solid phase method zeolite P water-silicon ratio calcium and magnesium ion exchange properties |
| 投稿时间：2019-07-21 修订日期：2019-09-29 |
| 摘要点击次数: 1690 |
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| 张恕,郭宏飞,刘秀伍,陈学青,赵斌,曹吉林.类固相法快速合成高钙镁离子交换性能的P型分子筛[J].无机化学学报,2019,35(12):2323-2330. |
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