Epoxide compound
US-9505731-B2 · Nov 29, 2016 · US
Method for producing propylene oxide
US9102641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9102641-B2 |
| Application number | US-45031608-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2008 |
| Priority date | Mar 22, 2007 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A method for producing propylene oxide in which the concentration of an organic peroxide in a reaction solution after an epoxidation step is from 20 to 5,000 ppm by weight based on the amount excluding propylene in the reaction solution, the method comprising an epoxidation step of reacting an organic peroxide with propylene in the presence of a catalyst to obtain propylene oxide and an alcohol, a propylene recovery step of recovering the unreacted propylene in the epoxidation step and recycling the resulting propylene as a raw material of the epoxidation step, and a propylene oxide purification step of distilling the propylene oxide obtained in the epoxidation step to obtain purified propylene oxide.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing propylene oxide in which the concentration of an organic peroxide in a reaction solution after an epoxidation step is from 20 to 5,000 ppm by weight based on the amount excluding propylene in the reaction solution, the method comprising the following steps: an epoxidation step of reacting an organic peroxide with propylene in the presence of a catalyst composed of a titanium-containing silicon oxide to obtain a reaction mixture c…
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- C07D301/19Primary
Chemistry & Metallurgy · mapped topic
- C07D303/04Primary
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9102641B2 cover?
- A method for producing propylene oxide in which the concentration of an organic peroxide in a reaction solution after an epoxidation step is from 20 to 5,000 ppm by weight based on the amount excluding propylene in the reaction solution, the method comprising an epoxidation step of reacting an organic peroxide with propylene in the presence of a catalyst to obtain propylene oxide and an alcohol…
- Who is the assignee on this patent?
- Yamamoto Jun, Goto Shigeru, Sumitomo Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C07D301/19. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 11 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).