Preparation and characterization of MCM-22 zeolite and its layered precursor

Quimica nova

Corma, Avelino¹  Fornés, Vicente¹  Pergher, Sibele B. C.² 

[1] Universidad Politécnica de Valencia, Valencia, España;Universidade Regional Integrada do Alto Uruguai e das Missões, Erechim

关键词: MCM-22;    layered precursor;    zeolites.;   

DOI  :  10.1590/S0100-40422003000600003

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The layered precursor of MCM-22 was preparedwith different Si/Al ratios: 15, 25, 50, 100 and ¥. Upon heat treatmentthese precursors form MCM-22 zeolite. Both layered precursor and MCM-22 zeolitewere characterized by several techniques: Chemical Analysis by Atomic AbsorptionSpectroscopy (AAS), X-Ray Diffraction (XRD), Thermo-gravimetric Analysis (TGA),Pore Analysis by N2 and Ar adsorption, Scanning Electron Microscopy(SEM), Infrared Spectroscopy (IR) and Temperature Programmed Desorption of ammonium (TPD).

【 授权许可】

CC BY