Process for the chemoselective reduction of terminally saturated carboxylic esters
US-9193651-B2 · Nov 24, 2015 · US
Reduction of acid within column through esterification during the production of alcohols
US9150474B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9150474-B2 |
| Application number | US-201213456521-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 26, 2012 |
| Priority date | Jul 9, 2010 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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Abstract
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Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves the esterification of acetic acid in a column used for recovering the ethanol.
First claim
Opening claim text (preview).
We claim: 1. A process for producing ethanol comprising: hydrogenating acetic acid from an acetic acid feedstream in a reactor to produce a crude product stream comprising ethanol and acetic acid; reacting acetic acid and ethanol in a reactive distillation column; withdrawing an overhead stream comprising ethyl acetate and a bottom stream comprising ethanol and water; and recovering ethanol from the bottom stream. 2. The process of claim 1 , wherein a…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C07C29/149Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9150474B2 cover?
- Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves the esterification of acetic acid in a column used for recovering the ethanol.
- Who is the assignee on this patent?
- Zhou Zhenhua, Johnston Victor J, Lee David, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C07C29/149. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 06 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).