Method for producing acrylic acid from glycerol
US-2016122272-A1 · May 5, 2016 · US
Heterogeneous catalyst for preparing acrylic acid, and acrylic acid preparation method using same
US10315980B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10315980-B2 |
| Application number | US-201615744687-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 24, 2016 |
| Priority date | Sep 1, 2015 |
| Publication date | Jun 11, 2019 |
| Grant date | Jun 11, 2019 |
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- Title
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Abstract
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The present disclosure relates to a catalyst used in the preparation of acrylic acid and acrylic acid preparation method using the same, and more specifically, discloses a catalyst capable of enhancing selectivity of acrylic acid and a production yield of acrylic acid when preparing acrylic acid from allyl alcohol using a heterogeneous catalyst including bimetallic alloy catalyst particles of gold and another metal, and an acrylic acid preparation method using the same.
First claim
Opening claim text (preview).
The invention claimed is: 1. A heterogeneous catalyst for preparing acrylic acid from allyl alcohol, wherein the heterogeneous catalyst is a bimetallic alloy catalyst deposited on a cerium oxide support, wherein the bimetallic alloy catalyst has the following chemical formula: AuX, wherein X═Pd, and wherein the molar ratio of Au:X is from 20:1 to 40:1. 2. The heterogeneous catalyst for preparing acrylic acid of claim 1 , wherein the bimetallic alloy catalyst has a particle size of 10 nm or less. 3. The heterogeneous catalyst for preparing acrylic acid of claim 1 , wherein the bimetallic alloy catalyst is included in an amount of 5% by weight or less with respect to the total dry weight of the support. 4. A method for preparing acrylic acid from allyl alcohol, the method comprising an oxidation reaction of allyl alcohol in the presence of the heterogeneous catalyst of claim 1 . 5. The method for preparing acrylic acid of claim 4 , wherein the oxidation reaction is carried out in the presence of a base. 6. The method for preparing acrylic acid of claim 5 , wherein the base is at least one selected from the group consisting of NaOH, KOH, NaHCO 3 , Na 2 CO 3 , KHCO 3 , K 2 CO 3 and CaCO 3 . 7. The method for preparing acrylic acid of claim 4 , wherein the oxidation reaction is carried out by injecting oxygen or oxygen-including gas with a pressure of 1 bar to 6 bars. 8. The method for preparing acrylic acid of claim 4 , wherein the oxidation reaction is carried out at 30° C. to 100° C.
Assignees
Inventors
Classifications
Acrylic acid esters; Methacrylic acid esters · CPC title
Use of additives, e.g. for stabilisation · CPC title
Separation; Purification; Stabilisation; Use of additives · CPC title
- B01J37/34Primary
Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves {; Ionic sputtering; Flame or plasma spraying; Particle radiation} · CPC title
Reducing · CPC title
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- What does patent US10315980B2 cover?
- The present disclosure relates to a catalyst used in the preparation of acrylic acid and acrylic acid preparation method using the same, and more specifically, discloses a catalyst capable of enhancing selectivity of acrylic acid and a production yield of acrylic acid when preparing acrylic acid from allyl alcohol using a heterogeneous catalyst including bimetallic alloy catalyst particles of g…
- Who is the assignee on this patent?
- Lg Chemical Ltd, Korea Advanced Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification B01J37/34. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 11 2019 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).