goto contents


Riaz Muhammad

Green natural zeolite catalyst-preparation, characterization and acid catalytic performance

Universität Rostock, 2018

https://doi.org/10.18453/rosdok_id00002519

Abstract: Natural clinoptilolite zeolite-CLIN was acidified by ammonium ion exchange followed by calcination and HCl treatment under soft conditions. The influence of the modification type and treatment conditions on the structure, morphology and acidity was studied by XRD, SEM, FTIR, ICP-AES, TG/DSC, ammonia-TPD, 1H, 27Al and 29SI MAS NMR and N2-ads-des. High temperature calcination of NH4-CLIN and concentrated acid has a more severe impact on the clinoptilolite structure. H-CLIN catalysts are potential and active acid catalysts and synthesis-structure-porosity-acidity-activity relationship was found.

doctoral thesis   free access    


Portals

OPACGVKDataCite Commons

Rights

all rights reserved

This work may only be used under the terms of the German Copyright Law (Urheberrechtsgesetz).