CA2022037A1 - Improved carboxylic acid purification and crystallization process - Google Patents

Improved carboxylic acid purification and crystallization process

Info

Publication number
CA2022037A1
CA2022037A1 CA 2022037 CA2022037A CA2022037A1 CA 2022037 A1 CA2022037 A1 CA 2022037A1 CA 2022037 CA2022037 CA 2022037 CA 2022037 A CA2022037 A CA 2022037A CA 2022037 A1 CA2022037 A1 CA 2022037A1
Authority
CA
Canada
Prior art keywords
carboxylic acid
solution
crystallization process
acid purification
undersaturated
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA 2022037
Other languages
French (fr)
Other versions
CA2022037C (en
Inventor
Kris A. Berglund
Ponnampalam Elankovan
David A. Glassner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Michigan Biotechnology Institute
Original Assignee
Michigan Biotechnology Institute
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
Priority claimed from US07/385,638 external-priority patent/US5034105A/en
Application filed by Michigan Biotechnology Institute filed Critical Michigan Biotechnology Institute
Priority to CA 2022037 priority Critical patent/CA2022037C/en
Publication of CA2022037A1 publication Critical patent/CA2022037A1/en
Application granted granted Critical
Publication of CA2022037C publication Critical patent/CA2022037C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

A process for preparing a carboxylic acid of high purity comprises preparing an undersaturated solution of a salt of the carboxylic acid; subjecting the undersaturated salt solution to water-splitting electrodialysis to form base and a supersaturated solution of the carboxylic acid; and, then crystallizing the carboxylic acid from the supersaturated solution. In the preferred embodiment, the undersaturated solution is a fermentation broth containing sodium succinate and sodium acetate and the carboxylic acid obtained is succinic acid.
CA 2022037 1989-07-27 1990-07-26 Improved carboxylic acid purification and crystallization process Expired - Fee Related CA2022037C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2022037 CA2022037C (en) 1989-07-27 1990-07-26 Improved carboxylic acid purification and crystallization process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/385,638 US5034105A (en) 1989-07-27 1989-07-27 Carboxylic acid purification and crystallization process
US07/385,638 1989-07-27
CA 2022037 CA2022037C (en) 1989-07-27 1990-07-26 Improved carboxylic acid purification and crystallization process

Publications (2)

Publication Number Publication Date
CA2022037A1 true CA2022037A1 (en) 1991-01-28
CA2022037C CA2022037C (en) 2000-02-15

Family

ID=25674221

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2022037 Expired - Fee Related CA2022037C (en) 1989-07-27 1990-07-26 Improved carboxylic acid purification and crystallization process

Country Status (1)

Country Link
CA (1) CA2022037C (en)

Also Published As

Publication number Publication date
CA2022037C (en) 2000-02-15

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