| 唐志诚.低成本原料一步直接合成小晶粒ZSM-5分子筛[J].分子催化,2013,(3):227-234 |
| 低成本原料一步直接合成小晶粒ZSM-5分子筛 |
| Low cost raw material for one step synthesis of small crystal ZSM-5 molecular sieve |
| 投稿时间：2013-03-29 修订日期：2013-06-13 |
| DOI： |
| 中文关键词: 小晶粒分子筛 ZSM-5 合成 |
| 英文关键词:Small crystal molecular sieve ZSM-5 Synthesis |
| 基金项目: |
|
| 摘要点击次数: 2081 |
| 全文下载次数: 3003 |
| 中文摘要: |
| 以硫酸铝、水玻璃、正丁胺、水、晶种、NaCl、浓硫酸等低成本试剂为原料，一步直接合成法制备了高结晶度小晶粒ZSM-5分子筛，详细考察了凝胶陈化方式、滴加顺序、晶化时间、晶化温度、水量及原料硅铝比对分子筛结晶度及粒度的影响。通过XRD、SEM等对合成的分子筛进行了详细表征。研究结果表明：采用低温水浴回流搅拌陈化方式、在160~170℃、晶化30h可获得高结晶度小晶粒ZSM-5分子筛。正反加顺序对分子筛结晶度影响不大。 |
| 英文摘要: |
| In this paper, high crystallinity small crystal ZSM-5 molecular sieves were prepared by one step direct synthesis method using low cost raw materials such as aluminum sulfate, water glass, n-butylamine, water, seed, NaCl, concentrated sulfuric acid, etc. Effect of gel aging process, solution addition sequence, crystallization time, crystallization temperature, water content and SiO2/Al2O3 ratio on the crystallinity and crystal size of molecular sieve were investigated. By means of XRD and SEM on the characterization of synthesized ZSM-5 molecular sieve was investigated in detailed. Research results showed that a high crystallinity small crystal ZSM-5 molecular sieve were obtained under the crystallization condition of 160~170℃ for 30h with low temperature water bath reflux stir-aging method. The solution addition sequence has little effect on the crystallinity of molecular sieve. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
