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 PDF

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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
Application number
FI880105A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI880105A0 (en
FI93857C (en
FI93857B (en
Inventor
Santi Kulprathipanja
Original Assignee
Uop Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uop Inc filed Critical Uop Inc
Priority to FI880105A priority Critical patent/FI93857C/en
Publication of FI880105A0 publication Critical patent/FI880105A0/en
Publication of FI880105A publication Critical patent/FI880105A/en
Application granted granted Critical
Publication of FI93857B publication Critical patent/FI93857B/en
Publication of FI93857C publication Critical patent/FI93857C/en

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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.
FI880105A 1988-01-11 1988-01-11 A method for separating citric acid from a fermentation broth using a polymeric adsorbent FI93857C (en)

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)

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FI (1) FI93857C (en)

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