Method for producing acrolein
US-9822051-B2 · Nov 21, 2017 · US
Method for preparing acrolein
US11078147B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11078147-B2 |
| Application number | US-201916980934-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2019 |
| Priority date | Mar 21, 2018 |
| Publication date | Aug 3, 2021 |
| Grant date | Aug 3, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Provided is a process for preparing acrolein by catalytic gas phase oxidation comprising (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.01:1 to 0.25:1, and (b) contacting the reaction gas with a mixed metal oxide catalyst comprising one or more of molybdenum, bismuth, cobalt, and iron.
First claim
Opening claim text (preview).
What is claimed is: 1. A process for preparing acrolein by catalytic gas phase oxidation comprising: (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.01:1 to 0.25:1; and (b) contacting the reaction gas with a mixed metal oxide catalyst to form a mixture comprising acrolein, wherein the mixed metal oxide catalyst comprises one or more of molybdenum, bismuth, cobalt, and iron. 2. The process of claim 1 , wherein the fuel mixture comprises methane. 3. The process of claim 1 , wherein the reaction gas comprises propylene in an amount of from 7.5 to 8.2 mol %. 4. The process of claim 1 , wherein the reaction gas comprises propane in an amount of from 0.03 to 0.62 mol %. 5. The process of claim 1 , wherein the reaction gas comprises the fuel mixture in an amount of from 0.5 to 1.4 mol %. 6. The process of claim 2 , wherein the reaction gas comprises methane in an amount of from 1.1 to 1.4 mol %. 7. The process of claim 1 , wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.1:1 to 0.18:1. 8. The process of claim 1 , wherein the mixed metal oxide catalyst comprises (1) a primary component selected from the group consisting of molybdenum, bismuth, and combinations thereof, and (2) a secondary component selected from the group consisting of cobalt, iron, nickel, zinc, tungsten, phosphorous, manganese, potassium, magnesium, silicon, aluminum, and combinations thereof, wherein the primary component and secondary component are in an atomic ratio of from 9:28 to 28:9. 9. The process of claim 1 , wherein the fuel mixture comprises sulfur in an amount of less than 30 parts per million by volume of the fuel mixture. 10. A process for preparing acrolein by catalytic gas phase oxidation comprising: (a) providing a reaction gas comprising (i) 7.5 to 8.2 mol % propylene, (ii) 0.03 to 0.62 mol % propane, and (iii) 0.5 to 1.4 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the fuel mixture comprises sulfur in an amount of less than 30 parts per million by volume of the fuel mixture, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.1:1 to 0.18:1; and (b) contacting the reaction gas with a mixed metal oxide catalyst to form a mixture comprising acrolein, wherein the mixed metal oxide catalyst comprises (1) a primary component selected from the group consisting of molybdenum, bismuth, and combinations thereof, and (2) a secondary component selected from the group consisting of cobalt, iron, nickel, zinc, tungsten, phosphorous, manganese, potassium, magnesium, silicon, aluminum, and combinations thereof, wherein the primary component and secondary component are in an atomic ratio of from 9:28 to 28:9.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11078147B2 cover?
- Provided is a process for preparing acrolein by catalytic gas phase oxidation comprising (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is f…
- Who is the assignee on this patent?
- Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C07C45/35. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 03 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).