Combinatorial Synthesis of Zeolite Beta Using Various Kinds of Chiral Amines as Secondary SDA, pp. 637-645
Authors: (Yukio Takagi, Takayuki Miyaji, Yasuyoshi Kitabata, Hiroyuki Itoh, Takayuki Komatsu - Technical Center of Chemical Catalysts, N.E. Chemcat Corp., Shizuoka, Japan and others)
Abstract: A combinatorial high throughput method was applied to the hydrothermal synthesis and XRD characterization of zeolite beta in order to search appropriate amines for preferential crystallization of the chiral polymorph A. Zeolite beta was crystallized in an acidic medium using TEAF (Tetraethylammonium fluoride) and 46 kinds of chiral amines as an additional SDA. The operations treated 48 templates (46 kinds of chiral amines and 2 blank tests), 4 kinds of silica sources and 2 temperatures of hydrothermal synthesis and obtained 384 samples. Some of the amines having C2 symmetry directed the structure of zeolite beta which somewhat enriched in polymorph A.
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