Issue 1291-1

US 6,849,248 B2

Porous crystalline material (zeolite ITQ-21), the preparation method thereof and use of same in the catalytic conversion of organic compounds

Avelino Corma Canós, Valencia (Spain); Fernando Rey García, Valencia (Spain); and María José Díaz Cabañas, Valencia (Spain)

Assigned to Consejo Superior de Investigaciones Cientificas, Madrid (Spain); and Universidad Politecnica de Valencia, Valencia (Spain)

Filed on Nov. 14, 2003, as Appl. No. 10/714,571.

Application 10/714571 is a continuation of application No. PCT/ES02/00223, filed on May 10, 2002.

Claims priority of application No. 200101145 (ES), filed on May 14, 2001.

Prior Publication US 2004/0149964 A1, Aug. 05, 2004

Int. Cl.⁷C01B 39/48

U.S. Cl. 423—718 [423/706; 423/708; 423/713; 502/60; 208/46]

13 Claims

1. A porous crystalline material with a chemical composition

X₂O₃:nYO₂:mZO₂

wherein

(n+m) is at least 5,

X is a trivalent element,

Z is Ge,

Y is at least one tetravalent element other than Ge, and

the ratio of m/(n+m) is between 0.0 and 0.5

said material having, in its calcined form, an X-ray diffraction pattern whose most characteristic diffraction peaks appear at values substantially coincident with


		Relative
	d(±0.3 Å)	Intensity

	13.64	vs
	7.87	vs
	4.82	w
	4.55	m
	4.11	m
	3.41	m

wherein d are interplanar spaces d in Ångstrom and the relative intensity of the lines is calculated as a percentage with respect to the most intense peak, with

vs being a very strong relative intensity of 80-100,

m being a medium relative intensity of 40-60, and

w being a weak relative intensity of 20-40.