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Synthesis and characterization of Mu-14: an aluminosilicate zeolite with ITE-type topology

✍ Scribed by V Valtchev; J.-L Paillaud; T Lefèbvre; D Le Nouen; H Kessler

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
570 KB
Volume
38
Category
Article
ISSN
1387-1811

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✦ Synopsis

A new structure-directing agent (SDA), 1-azoniatricyclo[4.4.4.0 1Y6 ]tetradecane hydroxide, was synthesized and its performance in the synthesis of aluminosilicate molecular sieve materials was investigated. 1-azoniatricyclo[4.4.4.0 1Y6 ]tetradecane was found to lead to the ITE and IFR topologies. The ITE-type zeolite named Mulhouse No. 14 (Mu-14) was synthesized as a single phase when the Si/Al ratio of the starting gel varied between 15 and 30. Increasing the Si/Al ratio over 45 led to the formation of an IFR-type material, and quartz or a layered silicate as coproducts. Mu-14 was characterized by XRD, SEM, TG/DTA, N 2 adsorption, 29 Si MAS and CP-MAS MNR, 27 Al MAS NMR, 13 C MAS and liquid NMR, and chemical analyses.

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