Zeolite is extensively synthesized for the application in a large variety of catalysis processes such as ion exchange, hydrocarbon cracking, and organic synthesis. In order to satisfy the serious terms of sustainability that denotes to the reduction of costs and chemical waste, kaolinite‐based zeolites were produced from cheap natural resources as against to the conventional process that employs pure sodium silicate and sodium aluminate. This review paper is to highlight the current trends in the synthesis of zeolite. Prior to previous reviews, great concern is focused on the impurities effect on the catalytic performance of kaolinite‐based zeolites. This study reveals that the impact of impurities in a catalytic reaction was in fact, underestimated or neglected. For instance, it was found that Fe ion concentration as small as 60 ppm gives significant catalytic output. Hence, a new practice to report the concentration of impurities in the research publication is suggested. This undoubtedly will generate a better interpretation of the catalytic activity from the zeolite framework.

中文翻译：

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高岭土沸石的合成及杂质的影响研究进展

广泛合成了沸石，用于各种催化过程，例如离子交换，烃裂化和有机合成。为了满足严重的可持续性要求，即降低成本和减少化学废物，与传统的采用纯硅酸钠和铝酸钠的传统工艺相比，由廉价的自然资源生产了高岭石基沸石。这篇综述文章将重点介绍沸石合成的当前趋势。在进行之前的审查之前，人们非常关注杂质对高岭石基沸石催化性能的影响。这项研究表明，杂质在催化反应中的影响实际上被低估或忽略了。例如，已经发现，Fe离子浓度低至60ppm可提供显着的催化输出。因此，提出了一种新的方法来报告研究出版物中的杂质浓度。毫无疑问，这将对沸石骨架的催化活性产生更好的解释。