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handle: 10261/34390
[ES] Material cristalino microporoso de naturaleza zeolítica, zeolita ITQ-32, procedimiento de preparación y uso. La presente invención se refiere a un material cristalino microporoso de naturaleza zeolítica, ITQ-32, caracterizado porque tiene, en estado calcinado y en ausencia de defectos en su red cristalina manifestados por la presencia de silanoles, la fórmula empírica en la que M está seleccionado entre H+, al menos un catión inorgánico de carga +n, X es al menos un elemento químico de estado de oxidación +3, Y es al menos un elemento químico con estado de oxidación +4 distinto de Si, x toma un valor comprendido entre O y 0,2, ambos incluidos, y toma un valor comprendido entre O y 0,1, ambos incluidos, y porque el material, tal y como se sintetiza, tiene un patrón de difracción de rayos X con, al menos, los valores de ángulo 28 (grados) e intensidades relativas mostrados en la tabla 1, a su procedimiento de preparación y a su uso en procesos de transformación, adsorción y separación de compuestos orgánicos.
[EN] A zeolitic, crystalline, microporous material (A; ITQ-32) characterized by empirical formula and X-ray diffraction data is new. A zeolitic, crystalline. microporous material (A) having an empirical formula (when calcined and in absence of any defects in the crystal lattice) x M1/nXO2:y YO2: SiO2 is new. It is characterized by having, as synthesized, the following X-ray diffraction pattern (2theta +- 0.5, relative intensity):7.3, f; 8.8, mf; 9.7, d; 16.4, d; 19.6, f; 20.2, f; 21.0, f; 21.9, f; 24.2, m; 26.0, m; 27.0, m; 27.5, m; where d = 0-20%; m = 20-40%; f = 40-60% and mf = 60-100%. M = hydrogen cations and/or at least one inorganic cation of charge n; X = at least one element in +3 oxidation state; Y = at least one element in +4 oxidation state, other than Si; x = 0-0.2; y = 0-0.1. An independent claim is included for the preparation of (A)
Fecha de presentación internacional: 02.02.2005. - Titulares: Consejo Superior de Investigaciones Científicas (CSIC). - Universidad Politécnica de Valencia
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