US 7,008,611 B2 · Microporous crystalline zeolite material (ITQ-20) and production method thereof

Abstract

The invention relates to a microporous crystalline zeolite material having the empirical formula x(M1/nXO2):yYO2:(1−y)SiO2 wherein x has a value less than 0.02; y has a value less than 0.1; M is at least an inorganic cation with a +n charge; X is at least a chemical element having oxidation state +3, preferably selected from the group consisting of Al, Ga, B, Cr, Fe, and Y is at least a chemical element with oxidation state +4, preferably selected from the group consisting of Ge, Ti, Sn, V. The inventive material can be obtained by means of a process comprising: preparing a laminar precursor, crystallized from a reaction mixture; swelling the precursor in a solution in order to obtain a swollen laminar material; which is then washed and dried to obtain a swollen solid; delaminating the solid to obtain a delaminated material in suspension; separating the delaminating material and eliminating the organic remnants by cationic exchange and/or calcination.

Claims22

Dependent claims

A microporous crystalline material of zeolitic nature, wherein the material has, in a anhydrous state calcinated at temperatures between 300° C. and 800° C., an X-ray diffraction pattern according to

d (Å)
(I/IO) *100
32.82 ± 0.02
vs
11.97 ± 0.03
w
10.05 ± 0.04
w
9.39 ± 0.06
m
7.05 ± 0.05
w
6.93 ± 0.02
w
6.56 ± 0.05
w
5.64 ± 0.07
w
4.77 ± 0.08
w
4.27 ± 0.04
w
3.98 ± 0.08
w
3.89 ± 0.08
w
3.72 ± 0.03
w
3.53 ± 0.05
w
3.46 ± 0.07
w
3.34 ± 0.06
w
2.90 ± 0.08
w
wherein
w is a weak relative intensity between 0 and 20%;
m is an average relative intensity between 20 & 40%;
s is an average relative intensity between 40 and 60%;
vs is an average relative intensity between 60 and 100%
and in that it has an empirical formula
x(M1/nXO2):yYO2:(1−y)SiO2
wherein
x has a value less than 0.2;
y has a value less than 0.1:
M is at least one +n charge inorganic cation,
X is at least one chemical element with a +3 oxidation state
Y is at least one chemical element with a +4 oxidation state.

46 more elements

Dependencies are inferred from the claim text.

Microporous crystalline zeolite material (ITQ-20) and production method thereof

Life of this patent

Microporous crystalline zeolite material (ITQ-20) and production method thereof

Life of this patent

Abstract

Claims22