Catalyst and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10005068-B2
Application number	US-201615374294-A
Country	US
Kind code	B2
Filing date	Dec 9, 2016
Priority date	Dec 9, 2014
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

A catalyst is provided. The catalyst includes a carrier and a metal. The carrier is represented by a formula: M x Al (1-x) O (3-x)/2 , where M is an alkaline earth metal, and x is between 0.09 and 0.24. The metal is loaded on the carrier. A method for manufacturing the catalyst is also provided.

First claim

The invention claimed is:

1. A catalyst, comprising:
a carrier, represented by a formula: M x Al (1-x) O (3-x)/2 , wherein M is an alkaline earth metal, and x is between 0.09 and 0.24; and
a metal, loaded on the carrier.

2. The catalyst according to claim 1 , wherein the alkaline earth metal comprises Mg or Ca.

3. The catalyst according to claim 2 , wherein the metal comprises Pd metal.

4. The catalyst according to claim 3 , wherein the Pd metal is contained in an amount of between 0.5 wt % and 3 wt % based on the carrier.

5. The catalyst according to claim 1 , wherein the metal comprises Pd metal.

6. The catalyst according to claim 5 , wherein the Pd metal is contained in an amount of between 0.5 wt % and 3 wt % based on the carrier.

7. The catalyst according to claim 1 , wherein the carrier is in amorphous phase.

8. A method for manufacturing a catalyst, comprising:
preparing a carrier represented by a formula: M x Al (1-x) O (3-x)/2 , wherein M is an alkaline earth metal, and x is between 0.09 and 0.24; and
loading a metal on the carrier.

9. The method for manufacturing the catalyst according to claim 8 , wherein the step of preparing the carrier comprises:
preparing a first solution comprising an alkaline earth metal salt, an aluminum salt, an alkaline and a solvent;
preparing a second solution comprising the first solution and aluminum oxide; and
coprecipitating, filtering, water washing and baking the second solution to form the carrier.

10. The method for manufacturing the catalyst according to claim 9 , wherein the step of loading the metal on the carrier comprises:
loading a precursor containing the metal on a surface of the carrier to form a catalyst precursor; and
coprecipitating, filtering, baking and calcining the catalyst precursor in order to form the catalyst.

11. The method for manufacturing the catalyst according to claim 8 , wherein the alkaline earth metal comprises Mg or Ca.

12. The method for manufacturing the catalyst according to claim 11 , wherein the metal comprises Pd metal.

13. The method for manufacturing the catalyst according to claim 12 , wherein the Pd metal is contained in an amount of between 0.5 wt % and 3 wt % based on the carrier.

14. The method for manufacturing the catalyst according to claim 8 , wherein the carrier is in amorphous phase.

15. The method for manufacturing the catalyst according to claim 11 , wherein the alkaline earth metal salt comprises an alkaline earth metal nitrate, an alkaline earth metal sulfate, an alkaline earth metal carbonate, or an alkaline earth metal chloride; and the aluminum salt comprises an aluminum nitrate, an aluminum sulfate, an aluminum carbonate, an aluminum oxide, an aluminum hydroxide, or an aluminum chloride.

16. The method for manufacturing the catalyst according to claim 8 , wherein the metal comprises Pd metal.

17. The method for manufacturing the catalyst according to claim 16 , wherein the Pd metal is contained in an amount of between 0.5 wt % and 3 wt % based on the carrier.

Assignees

• Ind Tech Res Inst

Inventors

• Wu Kuo-Ching
• Lee Chiou-Hwang

Classifications

• B01J37/009 Primary

  Preparation by separation, e.g. by filtration, decantation, screening · CPC title

• C07C67/303

  by hydrogenation of unsaturated carbon-to-carbon bonds · CPC title

• B01J23/44 Primary

  Palladium · CPC title

• B01J21/10

  Magnesium; Oxides or hydroxides thereof · CPC title

• B01J37/035

  Precipitation on carriers · CPC title