Hydrogenation method of phthalate compound
US-2016280629-A1 · Sep 29, 2016 · US
Catalyst for hydrogenation of aromatic compound and preparation method therefor
US11925920B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11925920-B2 |
| Application number | US-201816761898-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2018 |
| Priority date | Nov 6, 2017 |
| Publication date | Mar 12, 2024 |
| Grant date | Mar 12, 2024 |
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Abstract
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The present invention relates to a catalyst for hydrogenation of an aromatic compound, which is capable of greatly reducing the inactivation of a catalyst by using a support including a magnesium-based spinel structure, and a preparation method therefor.
First claim
Opening claim text (preview).
The invention claimed is: 1. A catalyst for hydrogenation of an aromatic compound, the catalyst comprising an active metal and a support, wherein the support includes a compound of Formula 1 having a magnesium-based spinel structure: Mg x Al 2 O 3+x [Formula 1] wherein x is from 0.125 to 0.25, a Mg/Al molar ratio is 0.0625 to 0.125, the active metal is comprised in an amount of 0.3 wt % to 5 wt % in the catalyst, the active metal is ruthenium (Ru), and ruthenium (Ru) or ruthenium oxide (RuO 2 ) is supported on the support having the spinel structure, and wherein the catalyst is an egg-shell type catalyst, and the egg-shell type catalyst has a pore volume of 0.95 ml/g to 1.5 ml/g and a BET surface area of 203.7 m 2 /g to 300 m 2 /g. 2. The catalyst of claim 1 , wherein the support comprises 0 wt % to 5 wt % of magnesium oxide (MgO). 3. The catalyst of claim 1 , wherein the catalyst is in at least one form selected from powder, particle, granular, and molded supports. 4. The catalyst of claim 1 , wherein the active metal is supported on the support in a form of a metal salt solution to prepare a precursor. 5. A hydrogenation method comprising conducting hydrogenation of dioctyl terephthalate (DOTP) in the presence of the catalyst of claim 1 , under 150 bar H 2 and 180° C. to produce Di(2-ethylhexyl)cyclohexane-1,4-dicarboxylate (DEHCH).
Assignees
Inventors
Classifications
more than 1.0 ml/g · CPC title
Egg shell like · CPC title
- B01J23/005Primary
Spinels · CPC title
Ruthenium · CPC title
X-ray diffraction · CPC title
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- What does patent US11925920B2 cover?
- The present invention relates to a catalyst for hydrogenation of an aromatic compound, which is capable of greatly reducing the inactivation of a catalyst by using a support including a magnesium-based spinel structure, and a preparation method therefor.
- Who is the assignee on this patent?
- Hanwha Chemical Corp
- What technology area does this patent fall under?
- Primary CPC classification B01J23/005. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 12 2024 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).