...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Recrystallization of zeolite Y to analcime and zeolite P with D-methionine as structure-directing agent (SDA)
【24h】

Recrystallization of zeolite Y to analcime and zeolite P with D-methionine as structure-directing agent (SDA)

机译：以D-蛋氨酸为结构导向剂（SDA）将Y沸石重结晶为Analcime和P沸石

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, the synthesis of template free zeolite Y and its recrystallization to two types of pure zeolite P and analcime in the presence of the amino acid d-methionine as structure-directing agent were investigated. The recrystallization occurred solely when specific heating cycles were applyed. A completely crystallized phase ofzeolite Y for the mixture of zeolite P and analcime was observed in the presence of d-methionine at a concentration of 0.015 m. The effect of different Si/Al ratios (2.3-9.3), crystallization temperatures (40-160 °C), and crystallization times (28-96 hours) on the achievement of two different zeolite types were studied as well. Pure zeolite P was obtained during conventional heating to 100 °C for 42 hours, whereas pure anal-cime zeolite was achieved by heating the mixture to 160 °C for 96 hours. The products were characterized by X-ray diffraction, scanning electron microscopy, and IR spectroscopy.
机译：在这项研究中，研究了游离模板Y的合成及其在氨基酸d-蛋氨酸作为结构导向剂存在下的重结晶为两种类型的纯沸石P和analcime。仅当施加特定的加热循环时才发生重结晶。在浓度为0.015m的d-甲硫氨酸存在下，观察到沸石Y和沸石的混合物的沸石Y的完全结晶相。还研究了不同的Si / Al比（2.3-9.3），结晶温度（40-160°C）和结晶时间（28-96小时）对获得两种不同沸石类型的影响。在常规加热至100℃下42小时的过程中获得了纯沸石P，而通过将混合物加热至160℃下96小时而获得了纯肛门-Cime沸石。通过X射线衍射，扫描电子显微镜和IR光谱对产物进行表征。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号