Process for production of acrylic acid or its derivatives
US-9452967-B2 · Sep 27, 2016 · US
Method for the production of acrylic acid or its derivatives
US9505697B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9505697-B2 |
| Application number | US-201313839986-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2013 |
| Priority date | Apr 11, 2012 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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Methods for catalytically dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed monophosphates.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of making acrylic acid, acrylic acid derivatives, or mixtures thereof comprising contacting a stream comprising hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof with a catalyst comprising: a. monohydrogen monophosphate anion described by formula (I): [HPO 4 ] 2− (I), b. and dihydrogen monophosphate anions described by formula (II): [H 2 PO 4 ] − (II), and c. at least two different cations, wherein t…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B01J27/1806Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US9505697B2 cover?
- Methods for catalytically dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed monophosphates.
- Who is the assignee on this patent?
- Procter & Gamble
- What technology area does this patent fall under?
- Primary CPC classification B01J27/1806. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 29 2016 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).