Method for activating a fixed catalyst bed which contains monolithic shaped catalyst bodies or consists of monolithic shaped catalyst bodies
US-2020016579-A1 · Jan 16, 2020 · US
Method for the preparation of C3—C12-alcohols by catalytic hydrogenation of the corresponding aldehydes
US11401224B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11401224-B2 |
| Application number | US-201916969607-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 11, 2019 |
| Priority date | Feb 14, 2018 |
| Publication date | Aug 2, 2022 |
| Grant date | Aug 2, 2022 |
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Abstract
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The present invention relates to a process for preparing C 3 -C 12 alcohols by catalytically hydrogenating the corresponding aldehydes at a temperature in the range of 50-250° C. and a pressure in the range of 5-150 bar in the presence of a supported activated Raney-type catalyst, characterized in that the support body is a metal foam and the metal is selected from the group consisting of cobalt, nickel and copper and mixtures thereof.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for preparing C 3 -C 12 alcohols by catalytically hydrogenating the corresponding aldehydes at a temperature in the range of 50-250° C. and a pressure in the range of 5-150 bar in the presence of a supported activated Raney-type catalyst, wherein the supported activated Raney-type catalyst comprises a support body that is a metal foam and the metal is selected from the group consisting of: cobalt; nickel; copper; and mixtures thereof. 2. The process of claim 1 , wherein a C 3 -C 9 aldehyde is used in the hydrogenation. 3. The process of claim 1 , wherein isononanal or butyraldehyde is used as the aldehyde in the hydrogenation. 4. The process of claim 1 , wherein the metal is nickel. 5. The process of claim 1 , wherein the supported activated Raney-type catalyst contains 85-95% by weight of nickel and 5-15% by weight of aluminium, based on the total weight of the catalyst. 6. The process of claim 5 , wherein the supported activated Raney-type catalyst additionally contains up to 3% by weight of molybdenum, based on the total weight of the catalyst. 7. The process of claim 1 , wherein the supported activated Raney-type catalyst has the following properties: a) a BET surface area of 1-200 m 2 /g, and b) macroscopic pores in the range of 100-5000 μm. 8. The process of claim 1 , wherein the supported activated Raney-type catalyst is cylindrical, annular, cuboidal, parallelepipedal or cubic. 9. The process of claim 8 , wherein the supported activated Raney-type catalyst is used in the form of a fixed bed of bulk material. 10. The process of claim 9 , wherein the supported activated Raney-type catalyst is cuboidal and has a maximum edge length of 50 mm. 11. The process of claim 1 , wherein the hydrogenation is conducted continuously. 12. The process of claim 1 , wherein the aldehyde is obtained by an oxo process. 13. The process of claim 5 , wherein the supported activated Raney-type catalyst has the following properties: a) a BET surface area of 1-200 m 2 /g, and b) macroscopic pores in the range of 100-5000 μm. 14. The process of claim 13 , wherein the supported activated Raney-type catalyst is cylindrical, annular, cuboidal, parallelepipedal or cubic. 15. The process of claim 14 , wherein the supported activated Raney-type catalyst is used in the form of a fixed bed of bulk material. 16. The process of claim 15 , wherein the supported activated Raney-type catalyst is cuboidal and has a maximum edge length of 50 mm. 17. The process of claim 13 , wherein the hydrogenation is conducted continuously. 18. The process of claim 13 , wherein the aldehyde is obtained by an oxo process. 19. The process of claim 13 , wherein a C 3 -C 9 aldehyde is used in the hydrogenation. 20. The process of claim 13 , wherein isononanal or butyraldehyde is used as the aldehyde in the hydrogenation.
Assignees
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Classifications
Raney nickel · CPC title
- C07C29/141Primary
with hydrogen or hydrogen-containing gases · CPC title
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US11401224B2 cover?
- The present invention relates to a process for preparing C 3 -C 12 alcohols by catalytically hydrogenating the corresponding aldehydes at a temperature in the range of 50-250° C. and a pressure in the range of 5-150 bar in the presence of a supported activated Raney-type catalyst, characterized in that the support body is a metal foam and the metal is selected from the group consisting of coba…
- Who is the assignee on this patent?
- Evonik Operations Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C07C29/141. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 02 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).