CA2022037A1 - Improved carboxylic acid purification and crystallization process - Google Patents
Improved carboxylic acid purification and crystallization processInfo
- 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
Links
Landscapes
- 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.
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) |
-
1990
- 1990-07-26 CA CA 2022037 patent/CA2022037C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2022037C (en) | 2000-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |