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Hydrothermal synthesis of gallosilicate (MFI) zeolite: Factors influencing crystallization kinetics and crystal size/growth
Author(s) -
Choudhary Vasant R.,
Kinage Anil K.
Publication year - 1998
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199806)72:2<176::aid-jctb891>3.0.co;2-k
Subject(s) - zeolite , crystallization , crystallinity , hydrothermal synthesis , chemical engineering , hydrothermal circulation , materials science , crystal (programming language) , crystal growth , kinetics , inorganic chemistry , mineralogy , chemistry , catalysis , crystallography , organic chemistry , composite material , programming language , physics , quantum mechanics , computer science , engineering
The kinetics of the hydrothermal synthesis of gallosilicate (MFI) zeolite (under autogeneous pressure at 180°C) from a gel containing a source of silica (Na‐trisilicate or fumed silica), gallium nitrate, templating agent (TPA‐Br or TPA‐OH), deionized water and sulfuric acid have been thoroughly investigated in order to understand the influence of various synthesis parameters (viz. gel composition, source of silica, template, method of gel preparation and pH of gel) on the crystallization kinetics and crystal size/growth of the zeolite. The zeolite samples were characterized for their crystallinity by XRD and crystal size and morphology by SEM. The crystallization rate and crystal size of the zeolite were found to be strongly influenced by the above synthesis parameters. © 1998 SCI