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Acidity of Silica-Alumina Catalysts By Amine Titration Using Hammett Indicators and FT-IR Study of Pyridine Adsorption
Acidity of Silica-Alumina Catalysts Amine Titration Hammett Indicators FT-IR Study Pyridine Adsorption
2010/6/30
In this study, characterization and surface acidity of Siral (SiO2-Al2O3) compounds were investigated with Hammett acidity functions, the n-butylamine titration method and FTIR analysis of the spectra...
Effects of the Structure of Silica-Alumina Gel on the Hydrothermal Synthesis of Kaolinite
Gel structure Hydrothermal synthesis Kaolinite Nuclear magnetic resonance Silica-alumina gel
2011/12/29
Kaolinite was hydrothermally synthesized from two kinds of silica-alumina gels to examine the effect of the structure of the starting material. Two kinds of gels were prepared by precipitation at diff...
Formation of Phyllosilicates and Zeolites from Pure Silica-Alumina Gels
Phyllosilicates Zeolites Pure Silica-Alumina Gels
2012/2/13
The hydrothermal aging of pure silica—alumina gels in presence of 10 ml of 0.1 N sodium hydroxide solution at 175, 150 and 130°C for 8–30 days led to the synthesis of zeolites and the phyllosilicates,...