Use of molybdenum and vanadium mixed oxides as catalysts for the oxidation of unsaturated alcohols into unsaturated carboxylic acids
US-2018215696-A1 · Aug 2, 2018 · US
Production of acrolein or acrylic acid from allyl alcohol with high yield and low impurity
US12565464B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12565464-B2 |
| Application number | US-202017632653-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 10, 2020 |
| Priority date | Sep 18, 2019 |
| Publication date | Mar 3, 2026 |
| Grant date | Mar 3, 2026 |
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Abstract
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Acrolein is produced by selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst.
First claim
Opening claim text (preview).
I claim: 1 . A method comprising: selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of water and oxygen in the vapor phase to produce acrolein wherein a mass ratio of propionaldehyde to acrolein is less than 0.001, and selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase to produce acrylic acid at a yield of acrylic acid based on allyl alcohol feed of greater than 80% wherein a mass ratio of propionic acid to acrylic acid is less than 0.001; wherein the first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth; and wherein the second mixed metal oxide has a different composition from the first mixed metal oxide catalyst. 2 . The method according to claim 1 , wherein the second mixed metal oxide catalyst comprises oxides of molybdenum and vanadium. 3 . The method according to claim 2 , wherein the second mixed metal oxide catalyst further comprises at least one additional element selected from the group consisting of tungsten, copper, iron, antimony, and phosphorus. 4 . The method according to claim 1 , wherein the first mixed metal oxide catalyst further comprises at least one additional element selected from the group consisting of iron, cobalt, and nickel. 5 . The method according to claim 1 , wherein the oxygen is present in the form of purified oxygen, air, or lattice oxygen of the mixed metal oxide. 6 . The method according to claim 1 , wherein the allyl alcohol is produced from biomass-derived feedstock selected from glycerol, 1,2-propanediol, and 1,3-propanediol. 7 . The method according to claim 1 , wherein the acrolein has a ratio of 14 C: 12 C of at least 0.5×10 −13 .
Assignees
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Classifications
of propene, butenes, acrolein or methacrolein · CPC title
Acrylic acid; Methacrylic acid · CPC title
acyclic · CPC title
- C07C45/38Primary
being a primary hydroxyl group · CPC title
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- What does patent US12565464B2 cover?
- Acrolein is produced by selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed met…
- Who is the assignee on this patent?
- Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C07C45/38. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 03 2026 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).