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Process for removing, isolating and purifying dicarboxylic acids
US8957249B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8957249-B2 |
| Application number | US-201113806904-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2011 |
| Priority date | Jun 25, 2010 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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A process for removing, isolating and purifying dicarboxylic acid from fermentation broths, which includes the following steps: 1) removal of the biomass and any solids present from the fermentation broth in two successive stages, 2) removal of the dicarboxylic acid solution from the biomass-free fermentation broth by simulated moving bed (SMB) chromatography, 3) fine purification of the dicarboxylic acid solution, 4) multistage evaporative concentration and crystallization, and 5) separation and drying of the crystals.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for separating, recovering, and purifying dicarboxylic acids from a fermentation broth containing biomass, comprising the following steps: a) separating biomass from a dicarboxylic acid moiety-containing fermentation broth in at least two steps, by a)1) continuously separating coarse biomass components from the fermentation broth to produce a liquid dicarboxylic acid moiety-containing separation stream having a biomass concentration of 1 g/l…
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- C07C51/47Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8957249B2 cover?
- A process for removing, isolating and purifying dicarboxylic acid from fermentation broths, which includes the following steps: 1) removal of the biomass and any solids present from the fermentation broth in two successive stages, 2) removal of the dicarboxylic acid solution from the biomass-free fermentation broth by simulated moving bed (SMB) chromatography, 3) fine purification of the dicarb…
- Who is the assignee on this patent?
- Tietz Wolfgang, Schulze Joachim, Thyssenkrupp Uhde Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C07C51/47. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 17 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).