Crystalline MWW-type titanosilicate catalyst for producing oxidized compound, production process for the catalyst, and process for producing oxidized compound by using the catalyst

• US 20040092757A1
• Filed: 10/27/2003
• Published: 05/13/2004
• Est. Priority Date: 09/29/2000
• Status: Abandoned Application

• Current Assignee: Showa Denko KK
• Original Assignee: Showa Denko KK
• Inventors: Wu, Peng, Tatsumi, Takashi, Tsuji, Katsuyuki, Oguchi, Wataru
• Application Number:
  US10/692,685
• Publication Number:
  US 20040092757A1
• Time in Patent Office: Days
• US Class Current: 549/533
• CPC Class Codes: B01J 29/70 of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
• CPC Class Codes: B01J 29/89 Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium B01J29/005 takes precedence
• CPC Class Codes: C01B 37/005 Silicates, i.e. so-called metallosilicalites or metallozeosilites
• CPC Class Codes: C07C 29/03 by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by simultaneous introduction of -OH groups and halogens C07C29/64
• CPC Class Codes: C07C 31/225 Glycerol
• CPC Class Codes: C07D 301/12 with hydrogen peroxide or inorganic peroxides or peracids

Abstract

A crystalline titanosilicate catalyst which is usable as a catalyst in the oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group, a process for producing the catalyst, and a process for producing an oxidized compound by an oxidation reaction using the catalyst. It has been found that a crystalline titanosilicate having a structural code of MWW effectively functions as a catalyst in an oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group wherein the carbon-carbon double bond of the compound is oxidized by using a peroxide as an oxidizing agent, thereby to highly selectively provide an intended oxidized compound.

Claims

1. A crystalline MWW-type titanosilicate catalyst for producing an oxidized compound, which is usable in producing an oxidized compound by an oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group wherein the carbon-carbon double bond of the compound is oxidized by using a peroxide as an oxidizing agent;

the catalyst having an MWW structure and being represented by the following composition formula (1);

xTiO₂.(1-x)SiO₂  

 

Composition formula (1)

wherein x is a number of 0.0001 to 0.2;

2. A crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 1, wherein x is a number of 0.005 to 0.2.

7. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 1, said production process comprising:

a first step of heating a mixture comprising a template compound, a titanium-containing compound, a boron-containing compound, a silicon-containing compound and water, to thereby obtain a precursor; and

a second step of calcining the precursor obtained in the first step, to thereby obtain a crystalline titanosilicate.

8. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the template compound is a nitrogen-containing compound.

9. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 8, wherein the nitrogen-containing compound is at least one compound selected from the group consisting of piperidine, hexamethyleneimine and a mixture thereof.

10. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the titanium-containing compound is at least one compound selected from the group consisting of titanium oxide, titanium halide and tetraalkyl orthotitanates.

11. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the boron-containing compound is at least one compound selected from the group consisting of boric acid, boric acid salt, boron oxide, boron halide and trialkylborons.

12. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the silicon-containing compound is at least one compound selected from the group consisting of silicic acid, silicic acid salt, silicon oxide, silicon halide, fumed silicas, tetraalkylorthosilicates and colloidal silica.

13. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the ratio between titanium and silicon in the mixture to be used in the first step is 0.001 to 0.3:

1 (titanium;

silicon) in terms of the molar ratio therebetween.

14. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the ratio between boron and silicon in the mixture to be used in the first step is 0.3 to 10:

1 (boron;

silicon) in terms of the molar ratio therebetween.

15. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the ratio between water and silicon in the mixture to be used in the first step is 5 to 200:

1 (water;

silicon) in terms of the molar ratio therebetween.

16. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the ratio between the template compound and silicon in the mixture to be used in the first step is 0.1 to 5:

1 (template compound;

silicon) in terms of the molar ratio therebetween.

17. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the heating temperature in the first step is in the range from 110 to 200°

C.

18. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the calcining temperature in the second step is in the range from 200 to 700°

C.

19. A process for producing a crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 7, wherein the precursor obtained in the first step is contacted with an acid, and thereafter the second step is performed.

3. A crystalline MWW-type titanosilicate catalyst for producing an oxidized compound, which is usable in producing an oxidized compound by an oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group wherein the carbon-carbon double bond of the compound is oxidized by using a peroxide as an oxidizing agent;

the catalyst having an MWW structure and being represented by the following composition formula (2);

xTiO₂.yM₂O₃.(1-x-2y)SiO₂  

 

Composition formula (2)

wherein M represents at least one element selected from the group consisting of aluminum, boron, chromium, gallium and iron, x is a number of 0.0001 to 0.2 and y is a number of 0.0001 to 0.1.

4. A crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 3, wherein M in the composition formula (2) is boron.

5. A crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 3, wherein x is a number from 0.005 to 0.2.

6. A crystalline MWW-type titanosilicate catalyst for providing an oxidized compound according to claim 3, wherein y is a number from 0.0001 to 0.05.