FI880105A - A method for separating citric acid from a fermentation broth using a polymeric adsorbent - Google Patents
A method for separating citric acid from a fermentation broth using a polymeric adsorbent Download PDFInfo
- Publication number
- FI880105A FI880105A FI880105A FI880105A FI880105A FI 880105 A FI880105 A FI 880105A FI 880105 A FI880105 A FI 880105A FI 880105 A FI880105 A FI 880105A FI 880105 A FI880105 A FI 880105A
- Authority
- FI
- Finland
- Prior art keywords
- citric acid
- exchange resin
- fermentation broth
- water
- basic anion
- Prior art date
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- Treatment Of Liquids With Adsorbents In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a process for the separation of citric acid from a fermentation medium with the aid of a water-soluble polymeric adsorption agent formed by a neutral cross-linked polystyrene, a non-ionic hydrophobic polyacrylic acid ester, a weakly basic anion-exchange resin with tertiary amino or pyridine functional groups, and a strongly basic anion-exchange resin with quaternary functional amino groups. The invention also relates to the resulting compositions and to a desorption agent formed by water and an inorganic acid or ketone, or mixtures thereof. The pH of the mixture introduced is regulated and is preferably kept below the first ionization constant pKa1 of citric acid in order to ensure the required selectivity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI880105A FI93857C (en) | 1988-01-11 | 1988-01-11 | A method for separating citric acid from a fermentation broth using a polymeric adsorbent |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI880105 | 1988-01-11 | ||
FI880105A FI93857C (en) | 1988-01-11 | 1988-01-11 | A method for separating citric acid from a fermentation broth using a polymeric adsorbent |
Publications (4)
Publication Number | Publication Date |
---|---|
FI880105A0 FI880105A0 (en) | 1988-01-11 |
FI880105A true FI880105A (en) | 1989-07-12 |
FI93857B FI93857B (en) | 1995-02-28 |
FI93857C FI93857C (en) | 1995-06-12 |
Family
ID=8525704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI880105A FI93857C (en) | 1988-01-11 | 1988-01-11 | A method for separating citric acid from a fermentation broth using a polymeric adsorbent |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI93857C (en) |
-
1988
- 1988-01-11 FI FI880105A patent/FI93857C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI880105A0 (en) | 1988-01-11 |
FI93857C (en) | 1995-06-12 |
FI93857B (en) | 1995-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: KOSKINEN, KIM JOHAN |
|
BB | Publication of examined application | ||
BB | Publication of examined application | ||
FG | Patent granted |
Owner name: UOP INC. |
|
MA | Patent expired |