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Elaboración de monolitos zeolíticos estabilizados hidrotermalmente para la depuración de fluidos

Authors: Ávila García, Pedro; Rodríguez Fuentes, Gerardo; Blanco Álvarez, Jesús; Gener Batista, Maritza; Rodríguez Iznaga, Inocente;

Elaboración de monolitos zeolíticos estabilizados hidrotermalmente para la depuración de fluidos

Abstract

[ES]Se ha desarrollado un procedimiento para la elaboraci6n de monolitos de zeolitas naturales o sint6ticas, utilizando otros silicatos como aditivos que aporten propiedades reológicas que permitan el moldeo por extrusi6n en estructuras tipo 'panal de abeja'. Los monolitos obtenidos son estabilizados en sus propiedades mecánicas mediante el tratamiento hidrotermal con soluciones de silicato de sodio. El producto asi obtenido es un monolito tipo panal de abeja que mantiene prácticamente inalteradas las propiedades fisicas y quimicas de la zeolita contenida, lo que permite su utilizaci6n como catalizador, adsorbente o intercambiador iónico en procesos industriales de depuración de fluidos. Los monolitos asi obtenidos superan las deficiencias de otros estabilizados mediante tratamientos térmicos, que pueden dafiar sensiblemente las propiedades de la zeolita, limitando su eficiencia en procesos de depuración de fluidos.

[ES]The invention relates to a method for the production of natural or synthetic zeolite monoliths, using other silicates as additives which provide rheological properties that enable extrusion moulding of honeycomb-type structures. The mechanical properties of the monoliths obtained are stabilised by means of hydrothermal treatment with sodium silicate solutions. The product thus obtained is a honeycomb-type monolith which retains the physical and chemical properties of the zeolite contained therein practically unaltered, such that it can be used as a catalyst, absorbent or ionic exchanger in industrial fluid purification processes. Moreover, the monoliths thus obtained overcome the shortcomings of other monoliths stabilised using thermal treatments which can significantly damage the properties of the zeolite, limiting the effectiveness thereof in fluid purification processes.

Filing Date: 2003-07-07.--Priority Data: ES P200201702 (2002-07-19)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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