Catalyst for production of conjugated diolefin and method for producing same
US-2018208685-A1 · Jul 26, 2018 · US
Catalyst for oxidative dehydrogenation of butene and method for producing the same
US11648536B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11648536-B2 |
| Application number | US-201816756561-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2018 |
| Priority date | Nov 28, 2017 |
| Publication date | May 16, 2023 |
| Grant date | May 16, 2023 |
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Abstract
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The present invention relates to a catalyst for oxidative dehydrogenation of butene and a method for producing the same. The catalyst for oxidative dehydrogenation of butene has a large amount of Mo—Bi phase acting as a reaction active phase on the surface, and therefore, can exhibit high catalytic activity, high conversion rate and high butadiene selectivity in the oxidative dehydrogenation of butene.
First claim
Opening claim text (preview).
The invention claimed is: 1. A catalyst for oxidative dehydrogenation of butene, which is represented by the following Composition Formula 1, wherein a surface composition of the catalyst, measured by X-ray photoelectron spectroscopy (XPS), has a molar content of bismuth (Bi) that is higher than a molar content of cobalt (Co), Mo a Bi b Co c (M1) d (M4) e O f [Composition Formula 1] in Composition Formula 1, Mo is molybdenum, Bi is bismuth, Co is cobalt, O is oxygen, M1 is one or more of potassium (K) and cesium (Cs), M4 is one or more of iron (Fe), manganese (Mn), and copper (Cu), a is from 9 to 25, b is from 0.5 to 2, c is from 1 to 10, d is from 0.01 to 1, e is from 0.5 to 5, and f is from 30 to 50, wherein the catalyst satisfies the following Calculation Formula 1 BARS/BART>6, [Calculation Formula 1] in Calculation Formula 1 BARS is the molar content of bismuth/the molar content of cobalt according to the surface composition of the catalyst, measured by XPS, and BART is a molar content of bismuth/a molar content of cobalt in the entire catalyst, measured by inductively coupled plasma optical emission spectroscopy (ICP-OES). 2. The catalyst for oxidative dehydrogenation of butene according to claim 1 , wherein M4 is Fe. 3. The catalyst for oxidative dehydrogenation of butene according to claim 1 , wherein M1 is Cs and M4 is Fe.
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Classifications
X-ray diffraction · CPC title
characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00) · CPC title
characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77) · CPC title
Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title
Grinding · CPC title
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- What does patent US11648536B2 cover?
- The present invention relates to a catalyst for oxidative dehydrogenation of butene and a method for producing the same. The catalyst for oxidative dehydrogenation of butene has a large amount of Mo—Bi phase acting as a reaction active phase on the surface, and therefore, can exhibit high catalytic activity, high conversion rate and high butadiene selectivity in the oxidative dehydrogenation of…
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J23/8876. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 16 2023 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).