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    • 27. 发明申请
    • ZEOLITE COMPOSITIONS AND METHODS FOR TAILORING ZEOLITE CRYSTAL HABITS WITH GROWTH MODIFIERS
    • 用增长改性剂对沸石晶体进行定制的沸石组合物和方法
    • WO2012106675A2
    • 2012-08-09
    • PCT/US2012/023877
    • 2012-02-03
    • UNIVERSITY OF HOUSTON SYSTEMRIMER, Jeffrey D.
    • RIMER, Jeffrey D.
    • C01B39/02C01B39/50C01B39/54C07C211/63
    • C01B39/40C01B37/02C01B37/08C01B39/265C01B39/32C01B39/445C01B39/54Y10T428/24273
    • Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/µm 2 or greater.
    • 本发明的实施方案通常提供具有定制晶体习性的结晶沸石材料的组合物和形成这种结晶沸石材料的方法。 形成结晶沸石材料的方法包括将一种或多种沸石生长调节剂(ZGM)结合到沸石晶体的表面上,这导致沿不同晶向的晶体生长速率的改变,导致形成具有定制的沸石 水晶习惯。 与通过传统方法制备的具有天然晶体习性的沸石相比,由定制的晶体习性实现的改善的性质包括最小化的晶体厚度,缩短的内部扩散路径长度和更大的阶梯密度。 定制的晶体习性提供具有约4或更大的纵横比的结晶沸石材料和具有约25步/μm2或更大的台阶密度的晶体表面。