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Particulate Properties of the Zeolite Crystals

Zeolites’ particulate properties (crystal size distribution and crystals’ morphology) often have a very important role in use of zeolites in many applications: the mode and efficiency of their use as catalysts, adsorbents, cation exchangers, and molecular sieves. The influence of physico-chemical parameters (reaction mixture starting chemical composition of liquid and solid phase, system alkalinity, reaction temperature, stirring conditions, way of components adding, template presence, etc.), which have an impact on particulate properties of synthesized zeolites, is discussed. Special attention is given to the most important basic processes in zeolite crystallization - nucleation and crystal growth. The collected knowledge about mentioned synthesis processes and crystallization parameters, helps us in their modeling as well as in the designing of the products (crystals) having desired phase and particulate properties, needed for specific applications.

Zeolite synthesis; Particulate properties; Nucleation; Autocatalytic crystallization

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