Catalyst for hydrogen peroxide decomposition, process for producing the same, and method for decomposing hydrogen peroxide using the catalyst
US-2017341060-A1 · Nov 30, 2017 · US
Heterogeneous catalyst for preparing acrylic acid, and acrylic acid preparation method using same
US2018201569A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018201569-A1 |
| Application number | US-201615744687-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 24, 2016 |
| Priority date | Sep 1, 2015 |
| Publication date | Jul 19, 2018 |
| Grant date | — |
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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.
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1 . A heterogeneous catalyst for preparing acrylic acid in order to prepare acrylic acid from allyl alcohol, which is a bimetallic alloy catalyst represented by AuX (X═Pd, Ru, Rh, Os, Ir or Pt) deposited on a support. 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 5% by weight or less with respect to a total dry weight of the support. 4 . The heterogeneous catalyst for preparing acrylic acid of claim 1 , wherein the support includes one or more types selected from the group consisting of activated carbon, titanium oxide, aluminum oxide, silicon oxide, zinc oxide, zirconium oxide, manganese oxide, iron oxide, vanadium oxide, tin oxide, tungsten oxide and cerium oxide. 5 . The heterogeneous catalyst for preparing acrylic acid of claim 1 , wherein the support is cerium oxide or a composite oxide including cerium oxide. 6 . A method for preparing acrylic acid from allyl alcohol by an oxidation reaction using the heterogeneous catalyst for preparing acrylic acid of claim 1 . 7 . The method for preparing acrylic acid of claim 6 , wherein the oxidation reaction is carried out under the presence of a base. 8 . The method for preparing acrylic acid of claim 7 , wherein the base is one or more types selected from the group consisting of NaOH, KOH, NaHCO 3 , Na 2 CO 3 , KHCO 3 , K 2 CO 3 and CaCO 3 . 9 . The method for preparing acrylic acid of claim 6 , wherein the oxidation reaction is carried out by injecting oxygen or oxygen-including gas with a pressure of 1 bar to 6 bars. 10 . The method for preparing acrylic acid of claim 6 , wherein the oxidation reaction is carried out at 30° C. to 100° C.
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- What does patent US2018201569A1 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 Thu Jul 19 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).