Synthesis of zeolites from different kaolin deposits worldwide

IF 5.3 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-02-22 DOI:10.1016/j.clay.2025.107757

Abdulsalami S. Kovo , Stuart M. Holmes , Carlos A. Rios , Abdulrazak J. Otaru , Ambali S. Abdulkareem , Victoria C. Eluwa

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Abstract

The present study examines advancements in the synthesis of various zeolites utilizing non-conventional sources, with a particular emphasis on kaolinite deposits sourced from diverse regions globally. The study compares the suitability of kaolinite deposits from different geographical locations for zeolite synthesis and investigates the reaction conditions conducive for their formation. Notably, the study underscores the successful synthesis of zeolites from kaolin deposits worldwide, highlighting the importance of leveraging resources to mitigate the nation's reliance on imported zeolites. The paper also examines various types of zeolites developed from kaolinite in previous years, with particular emphasis on recent reports and key synthesis factors such as the SiO₂/Al₂O₃ molar ratio, metakaolinization parameters, aging conditions, alkalinity, and crystallization conditions. The analysis incorporates the most up-to-date research on kaolinite-based zeolites published to date, with a brief discussion on the evolution of zeolites.

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从全球不同高岭土矿床中合成沸石

本研究考察了利用非常规来源合成各种沸石的进展，特别强调了来自全球不同地区的高岭石矿床。研究比较了不同地理位置的高岭石矿床对沸石合成的适宜性，探讨了有利于其形成的反应条件。值得注意的是，该研究强调了从全球高岭土矿床成功合成沸石的重要性，强调了利用资源减轻国家对进口沸石的依赖。本文还考察了近年来由高岭石开发的各种类型的沸石，特别强调了最近的报道和关键的合成因素，如SiO2/Al2O3的摩尔比、偏高岭石化参数、老化条件、碱度和结晶条件。该分析结合了迄今为止发表的关于高岭石基沸石的最新研究，并简要讨论了沸石的演变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...