Method and catalyst for producing alcohol

Patent metadata

Field	Value
Publication number	US-12139449-B2
Application number	US-202117154118-A
Country	US
Kind code	B2
Filing date	Jan 21, 2021
Priority date	Jul 23, 2018
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

An alcohol production method in which an alcohol is produced from a carbonyl compound, the method including producing an alcohol by using a catalyst, the catalyst including a metal component including rhenium having an average valence of 4 or less and a carrier supporting the metal component, the carrier including zirconium oxide. A catalyst for producing an alcohol by hydrogenation of a carbonyl compound, the catalyst including a carrier including zirconium oxide and a metal component supported on the carrier, the metal component including rhenium having an average valence of 4 or less.

First claim

The invention claimed is:

1. An alcohol production method in which an alcohol is produced from a carbonyl compound, the method comprising producing an alcohol by using a catalyst, the catalyst including a metal component including rhenium having an average valence of 4 or less, wherein a content of a metal of groups 8 to 10 of the periodic table except iron and nickel included in the catalyst is less than 0.2 in terms of atomic mass ratio to the rhenium atoms, and a carrier supporting the metal component, the carrier including zirconium oxide.

2. The alcohol production method according to claim 1 , wherein the carrier includes at least monoclinic and/or tetragonal zirconium oxide.

3. The alcohol production method according to claim 2 , wherein the carrier includes at least monoclinic zirconium oxide.

4. The alcohol production method according to claim 3 , wherein the carrier further includes tetragonal zirconium oxide, and wherein a mass ratio of the tetragonal zirconium oxide to the monoclinic zirconium oxide is 3 or less.

5. The alcohol production method according to claim 1 , wherein the carrier is zirconium oxide.

6. The alcohol production method according to claim 1 , wherein the carrier has a specific surface area of 30 m2/g or more.

7. The alcohol production method according to claim 1 , wherein the metal component includes one or more elements selected from elements of Groups 13 to 15 in the third and higher periods of the periodic table, the one or more elements being used as a second component.

8. The alcohol production method according to claim 7 , wherein a mass ratio of the elements used as the second component to the rhenium element included in the metal component is 0.1 or more and 3 or less.

9. The alcohol production method according to claim 7 , wherein the metal component includes germanium that is an element used as the second component.

10. The alcohol production method according to claim 1 , wherein the carbonyl compound is one or more compounds selected from carboxylic acids, carboxylic acid esters, carboxylic anhydrides, and aldehydes.

11. The alcohol production method according to claim 1 , wherein alcohol is produced in the presence of hydrogen gas.

12. The alcohol production method according to claim 1 , wherein an action in the method is a reduction reaction in a liquid phase using a solvent.

13. The alcohol production method according to claim 12 , wherein the solvent is water.

14. The alcohol production method according to claim 12 , wherein the solvent is an alcohol.

15. The alcohol production method according to claim 12 , wherein the solvent is an ether.

16. The alcohol production method according to claim 12 , wherein the solvent is a hydrocarbon.

17. The alcohol production method according to claim 1 , wherein the reaction temperature is 100 to 300° C. and the reaction pressure is 1 to 30 MPa G.

18. The alcohol production method according to claim 1 , wherein a carbon-oxygen double bond in the carbonyl compound is converted to obtain a corresponding alcohol.

Assignees

• Mitsubishi Chem Corp

Inventors

• Matsuo Takeshi
• Yoshikawa Yumiko
• Sakamoto Naoyuki
• Aoshima Takayuki

Classifications

• B01J2235/00

  Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title

• B01J2235/15

  X-ray diffraction · CPC title

• B01J35/70

  characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00) · CPC title

• C01P2006/12

  Surface area · CPC title

• C01G25/02

  Oxides · CPC title