Tableted catalyst for methanol synthesis having increased mechanical stability
US-11000833-B2 · May 11, 2021 · US
Molded catalyst, production method for same, and method for producing cyclic ketone using same
US12478953B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12478953-B2 |
| Application number | US-202117778644-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 8, 2021 |
| Priority date | Oct 27, 2020 |
| Publication date | Nov 25, 2025 |
| Grant date | Nov 25, 2025 |
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- Title
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Abstract
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A catalyst molded body, a production method thereof and a method for preparing cyclic ketone using the same, including: (a) producing a mixed powder including a catalyst powder and a binder; (b) producing a slurry by mixing an aqueous alkali hydroxide solution with the mixed powder; and obtaining a catalyst molded body by molding and heat-treating the slurry.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for producing a catalyst molded body for producing cyclic ketone, the method comprising: (a) producing a mixed powder comprising a catalyst powder and a binder; (b) producing a slurry by mixing a first aqueous solution with the mixed powder; and (c) molding and heat-treating the slurry to obtain the catalyst molded body, wherein the catalyst powder comprises oxides of magnesium and aluminum, and the first aqueous solution comprises alkali hydroxide in an amount of 0.1 to 1 part by weight based on 100 parts by weight of the catalyst molded body. 2 . The method of claim 1 , wherein the catalyst powder further comprises at least one oxide selected from the group consisting of manganese, iron, cobalt, nickel, copper and zinc. 3 . The method of claim 2 , wherein the catalyst powder has a molar ratio (Mg/Al) of magnesium and aluminum of 1.0 to 5.0. 4 . The method of claim 1 , wherein the binder comprises an inorganic binder in an amount of 1 to 20 parts by weight based on 100 parts by weight of the catalyst molded body. 5 . The method of claim 1 , wherein the binder comprises an organic binder in an amount of 0.1 to 4.5 parts by weight based on 100 parts by weight of the catalyst molded body.
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Classifications
Cylinders or rings · CPC title
Mechanical strength · CPC title
characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77) · CPC title
Magnesium; Oxides or hydroxides thereof · CPC title
Alumina · CPC title
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- What does patent US12478953B2 cover?
- A catalyst molded body, a production method thereof and a method for preparing cyclic ketone using the same, including: (a) producing a mixed powder including a catalyst powder and a binder; (b) producing a slurry by mixing an aqueous alkali hydroxide solution with the mixed powder; and obtaining a catalyst molded body by molding and heat-treating the slurry.
- Who is the assignee on this patent?
- Korea Kumho Petrochemical Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J21/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 25 2025 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).