Miniatura

Fitxers

710433.pdf (1.6 MB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2020-03-31

Llicència de publicació

cc-by (c) Novembre, Daniela et al., 2020
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/175879

Improvement in the synthesis conditions and characterizations of the zeolite Li-A(BW) obtained from a kaolinitic rock

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

https://doi.org/10.1038/s41598-020-62702-8

Resum

Crystallization of zeolite Li-A(BW) from kaolinite (Standard Porcelain by the IMERYS Minerals Ltd) through a conventional hydrothermal treatment is here achieved for the first time with no additives as reported in the literature. Moreover lower kaolin calcination temperatures and lower synthesis temperatures are tested and verified in this work. The synthesis process is rather simple as the reaction of kaolinite with alkali occurs very readily after calcination of at 650 °C. Metakaolin is mixed with calculated amount of aluminum hydroxide and lithium hydroxide and the experiment is performed at ambient pressure and 180 ± 0.1 °C. Li-A(BW) is characterized by powder X-ray diffraction, high temperature X-ray diffraction, scanning electron microscopy, inductively coupled plasma optical emission spectrometry, thermal analysis and infrared spectroscopy. Calculation of cell parameters (through Rietveld Refinement) and density, specific surface and pore size are also achieved. The amount of amorphous phase in the synthesis powders is estimated with quantitative phase analysis using the combined Rietveld and reference intensity ratio methods. The results become notably attractive in view of a possible industrial transfer of the synthesis protocol.

Matèries

Mineralogia, Cristal·lització, Jaciments hidrotermals

Matèries (anglès)

Mineralogy, Crystallization, Hydrothermal deposits

Citació

Col·leccions

Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)

Citació

NOVEMBRE, Daniela, GIMENO TORRENTE, Domingo, DEL VECCHIO, A.. Improvement in the synthesis conditions and characterizations of the zeolite Li-A(BW) obtained from a kaolinitic rock. _Scientific Reports_. 2020. Vol. 10, núm. 5715, pàgs. 1-9. [consulta: 15 de gener de 2026]. ISSN: 2045-2322. [Disponible a: https://hdl.handle.net/2445/175879]

Exportar metadades

JSON - METS

Compartir registre