ITQ-49 material, method for the production thereof and use of same

Patent metadata

Field	Value
Publication number	US-10427140-B2
Application number	US-201715678636-A
Country	US
Kind code	B2
Filing date	Aug 16, 2017
Priority date	Apr 18, 2012
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

The present invention refers to a microporous crystalline material, to the method for the production thereof and to the use of same, the material having a composition:

x X 2 O 3 :z ZO 2 :y YO 2

in which: X is a trivalent element such as Al, B, Fe, In, Ga, Cr, or mixtures thereof, where (y+z)/x can have values of between 9 and infinity; Z corresponds to a tetravalent element selected from Si, Ge or mixtures thereof; and Y corresponds to a tetravalent element such as Ti, Sn, Zr, V or mixtures thereof, where z/y can have values of between 10 and infinity.

First claim

The invention claimed is:

1. A process for the preparation of a material, comprising at least the following steps:
a) preparing a mixture containing H 2 O, a source of fluoride ions, an oxide or
another source of the tetravalent material Z and a structure directing agent (R), a source of the trivalent element X, an oxide or other source of the tetravalent material Y, wherein the synthesis mixture has a molar composition of oxides within the following ranges:

(YO 2 + ZO 2 )/X 2 O 3
higher than 2

H 2 O/(YO 2 + ZO 2 )
 1-50

R/(YO 2 + ZO 2 )
0.05-3.0

F − /(YO 2 + ZO 2 )
0.01-3.0

ZO 2 /YO 2
higher than 5

SiO 2 /GeO 2
higher than 1

b) maintaining the mixture at a temperature between 80 and 200° C. until crystals of the material are formed;
c) recovering the crystalline material;
wherein the microporous crystalline material has the following chemical composition:
x X 2 O3 : yYO 2 : zZO 2 , wherein: X is a trivalent element selected from Al, B, Fe, In, Ga, Cr, or mixtures thereof; Y is a tetravalent element tetravalent selected from Ti, Sn, Zr, V or mixtures thereof; Z is a tetravalent element tetravalent selected from Si, Ge and mixtures thereof the value of (y+z)/x is comprised between 9 and infinity; the value of z/y is comprised between 10 and infinity; and an X-ray diagram shown in Table 3.

2. The process for the preparation of a material according to claim 1 , wherein Z is Si, Ge or a mixture of both.

3. The process for the preparation of a material according to claim 1 , wherein the strucure directing agent R is a compound that contains P.

4. The process for the preparation of a material according to claim 3 , wherein R is an alkylphosphonium salt.

5. The process for the preparation of a material according to claim 4 , wherein R is 1,4-butanediyl-bis(tritertbutyl)phosphonium hydroxide or one of its salts.

6. The process for the preparation of a material according to claim 1 , that further comprises the calcination of the crystalline material obtained.

7. The process for the preparation of a material according to claim 6 , wherein the calcination is carried out at a temperature between 200 and 1200° C.

8. The process for the preparation of a material according to claim 1 , that further comprises one or more post-synthesis processes.

9. The process for the preparation of a material according to claim 8 , wherein said post-synthesis treatment comprises at least:
a) suspending the material in a solution that contains at least a trivalent element X selected from the group consisting of Al, Ga, B, Cr, Fe, In and mixtures thereof;
b) recovering of the solid through filtration, centrifugation or any other technique for solids-liquids separation;
c) activating the material through calcination at temperatures higher than 200° C.

10. The process for the preparation of a material according to claim 9 , wherein the solution is selected from the group consisting of an aqueous solution, an alcoholic solution, an organic solution and mixtures thereof.

11. The process for the preparation of a material according to claim 9 , wherein the post-synthesis treatment is carried out at a temperature between 0 and 200° C.

12. Method of catalysing a reaction comprising subjecting the reagents to a catalyst comprising a microporous crystalline material, having a chemical composition:
x X 2 O 3 :y YO 2 :z ZO 2

wherein:
X is a trivalent element selected from Al, B, Fe, In, Ga, Cr, or mixtures thereof;
Y is a tetravalent element tetravalent selected from Ti, Sn, Zr, V or mixtures thereof;
Z is a tetravalent element tetravalent selected from Si, Ge and mixtures thereof; the value of (y+z)/x is comprised between 9 and infinity; the value of z/y is comprised between 10 and infinity; and
an X-ray diagram shown in Table 3.

13. Method of catalysing according to claim 12 , wherein said material was obtained through a process comprising at least the following steps:
a) preparing a mixture containing H 2 O, a source of fluoride ions, an oxide or another source of the tetravalent material Z and a structure directing agent (R), a source of the trivalent element X, an oxide or other source of the tetravalent material Y, wherein the synthesis mixture has a molar composition of oxides within the following ranges:

(YO 2 + ZO 2 )/X 2 O 3
higher than 2

H 2 O/(YO 2 + ZO 2 )
 1-50

R/(YO 2 + ZO 2 )
0.05-3.0

F − /(YO 2 + ZO 2 )
0.01-3.0

ZO 2 /YO 2
higher than 5

SiO 2 /GeO 2
higher than 1

b) maintaining the mixture at a temperature between 80 and 200° C. until crystals of the material are formed;
c) recovering the crystalline material.

14. Method of converting hydrocarbons comprising subjecting the hydrocarbons to a catalyst comprising the material described in claim 12 .

15. Method of dewaxing hydrocarbons comprising subjecting the hydrocarbons to a catalyst comprising the material described in claim 12 .

16. Method of converting hydrocarbons comprising subjecting the alcohols to a catalyst comprising the material described in claim 12 .

17. Method for converting alcohols with less than four carbon atoms, into olefins comprising subjecting said alcohols to a catalyst comprising the material described in claim 12 .

18. Method for removing nitrogenated pollutants in gaseous or liquid streams comprising subjecting said gaseous or liquid streams to a catalyst comprising the material described in claim 12 .

19. Method for removing nitrogen oxides in gaseous streams comprising subjecting said gaseous stream to a catalyst comprising the material described in claim 12 .

20. Method for removing nitrogen oxides in gaseous streams

Assignees

• Corma Canos Avelino
• Rey Garcia Fernando
• Hernandez Rodriguez Manuel
• Jorda Moret Jose Luis
• Exxonmobil Res & Eng Co

Inventors

• Corma Canos Avelino
• Rey Garcia Fernando
• Hernandez Rodriguez Manuel
• Jorda Moret Jose Luis

Classifications

• B01J20/10

  comprising silica or silicate · CPC title

• C01B39/54

  Phosphates, e.g. APO or SAPO compounds · CPC title

• B01J29/70

  of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 · CPC title

• C07C1/22

  by reduction · CPC title

• B01D2255/50

  Zeolites · CPC title