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Crystallization field study for the formation of single phase sodium clinoptilolite: Batch composition, seed and temperature effects
Author(s) -
Güvenir Ö.,
Kalıpçılar H.,
Çulfaz A.
Publication year - 2009
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200800358
Subject(s) - clinoptilolite , crystallization , zeolite , raw material , chemistry , composition (language) , molar ratio , sodium , chemical engineering , phase (matter) , mineralogy , organic chemistry , catalysis , engineering , linguistics , philosophy
Although clinoptilolite is the most abundant zeolite mineral in nature, its synthesis under laboratory conditions has been difficult. A partial crystallization field study was done for the synthesis of clinoptilolite based on a nominal batch composition of 2.1Na 2 O:Al 2 O 3 :10Si 2 O:110H 2 O to delineate the limits of composition and temperature within which sodium clinoptilolite can be produced as a single phase in high yields. Effects of temperature, SiO 2 /Al 2 O 3 molar ratio in the batch composition, and the use of different raw materials in batch preparation were studied. The need for the use of seed crystals for reproducible synthesis of clinoptilolite was established. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)