Synthesis of aluminosilicates under high pressure and using sulfur as directing agent

• Authors: Sandra Loera , Enrique Lima , Heriberto Pfeiffer , Victor Lara
• Languages of publication: EN

Abstracts

EN

Two aluminosilicates were prepared under hydrothermal conditions. Silica, sodium aluminate, sodium sulfide and sulfur were used as raw materials. Starting with similar reacting mixtures, analcime (zeolite, Na(Si2Al)O6·H2O) and beidellite (clay, Na0.3Al2(Si, Al)4O10(OH)2·2H2O) were synthesized by varying pressures, 2 kbar and 1 kbar, respectively. Sulfur was present in both aluminosilicate surfaces, which confer to them particular adsorption properties. Additionally, water adsorption isotherms, under dynamical conditions, were obtained. Fractal dimension values and SEM micrographs reveal very different textural and morphological properties of the two prepared aluminosilicates

Keywords

EN

Beidellite; Catalysts; Sulfur; Analcime; Small-angle X-ray scattering

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2012
• Volume: 10
• Issue: 1
• Pages: 105-112

Dates

published

1 - 2 - 2012

online

24 - 11 - 2011

Contributors

author

Sandra Loera

• Metropolitan Autonomous University-Azcapotzalco

author

Enrique Lima

• National Autonomous University of Mexico

author

Heriberto Pfeiffer

• National Autonomous University of Mexico

author

Victor Lara

• Metropolitan Autonomous University-Iztapalapa

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Identifiers

DOI

10.2478/s11532-011-0123-6