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Production of hydrothermally-stablised zeolite monoliths for fluid purification

Other TitlesElaboración de monolitos zeolíticos estabilizados hidrotermalmente para la depuración de fluidos
AuthorsÁvila García, Pedro ; Rodríguez Fuentes, Gerardo; Blanco Álvarez, Jesús ; Gener Batista, Maritza; Rodríguez Iznaga, Inocente
Issue Date29-Jan-2004
CitationInternational Publication Number: WO 2004/009234 A1R1
AbstractThe 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.
DescriptionFiling Date: 2003-07-07.-- Priority Data: ES P200201702 (2002-07-19)
Appears in Collections:(ICP) Patentes
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