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Microporous crystalline aluminophosphates comprising ti, method for producing same and use thereof as a catalyst

Authors: Alfayate Lanza, Almudena; Sánchez Sánchez, Manuel; Pérez-Pariente, Joaquín;

Microporous crystalline aluminophosphates comprising ti, method for producing same and use thereof as a catalyst

Abstract

[ES] En esta patente se reivindica nuevos materiales aluminofosfatos microporosos cristalinos que comprenden Ti (TAPOs) partiendo de geles que contienen Ti en estado de oxidación inferior a (IV), preferentemente Ti(III). Asimismo, se reivindica el procedimiento de obtención de estos materiales. Los materiales TAPOs resultantes pueden comprender dos tipos de centros, ambos no descritos en aluminofosfatos, dependiendo de la atmósfera a la que se expongan tras su preparación. Así, si se mantienen en ausencia de oxigeno, se obtendrán materiales aluminofosfatos que comprenden Ti(III) (Ti(III) APOs) con propiedades rédox por explotar en catálisis, por ejemplo, en la producción de plásticos. Además, se trata de los primeros materiales TAPOs que no contienen centros ácidos de naturaleza Briinsted coexistiendo con los centros rédox. Por el contrario, si se exponen a oxigeno molecular, se obtienen materiales TAPOs que comprenden Ti(IV) (Ti( IV) APOs ), pero con un entorno diferente al de los TAPOs conocidos: en lugar de entornos Ti(OA1)4 o Ti (OA1)4.n (OTi)n (con O

[EN] The invention relates to novel microporous crystalline aluminophosphate materials comprising Ti (TAPOs) based on gels containing Ti in a state of oxidation lower than (IV), preferably Ti(III). The invention also relates to the method for producing said materials. The resulting TAPO materials can comprise two types of cores, both non-described in aluminium phosphates, depending on the atmosphere to which they are exposed following the production thereof. In this way, if they are kept in the absence of oxygen, aluminophosphates will be produced, comprising Ti(III) (Ti(III) APOs) with redox properties for exploiting in catalysis, for example, in the production of plastics. The invention further relates to the first TAPO materials that do not contain Brönsted acid cores coexisting with the redox cores. On the other hand, if they are exposed to molecular oxygen, TAPO materials comprising Ti(IV) (Ti( IV) APOs ) are produced, but with an environment different from that of the known TAPOs in that, instead of Ti(OA1)4 o Ti (OA1)4-n (OTi)n (con 04, and therefore with a specific catalytic behaviour in acid and oxidation reactions

A1 Solicitud de patente con informe sobre el estado de la técnica

Consejo Superior de Investigaciones Científicas (España)

Peer reviewed

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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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