ZSM-4 crystallization via faujasite metamorphosis

Journal Article · Sat Sep 01 00:00:00 EDT 1979 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/S0021-9517(79)80030-5· OSTI ID:6463071

Dwyer, F G; Chu, P

Chemical analyses, X-ray diffraction studies, and high-resolution scanning electron microscopy studies were performed of the crystallization processes which transformed amorphous aluminosilicate to Y faujasite and the faujasite to zeolite P in the absence, and to ZSM-4 in the presence, of tetramethylammonium cations. The recrystallization of the faujasite to ZSM-4 proceeded by nucleation of the ZSM-4 crystal on the faujasite surface and dissolution of the faujasite without an intermediate amorphous phase.

• Research Organization: Mobil Res. Dev. Corp.
• OSTI ID: 6463071
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 59:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
AMMONIUM COMPOUNDS
AMORPHOUS STATE
CATIONS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CRYSTALLIZATION
FAUJASITE
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
MATERIALS
MINERALS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
RECRYSTALLIZATION
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
STRUCTURAL CHEMICAL ANALYSIS
ZEOLITES