JPS5615694A - Purification of dicarboxylic acid - Google Patents
Purification of dicarboxylic acidInfo
- Publication number
- JPS5615694A JPS5615694A JP8930779A JP8930779A JPS5615694A JP S5615694 A JPS5615694 A JP S5615694A JP 8930779 A JP8930779 A JP 8930779A JP 8930779 A JP8930779 A JP 8930779A JP S5615694 A JPS5615694 A JP S5615694A
- Authority
- JP
- Japan
- Prior art keywords
- dicarboxylic acid
- aromatic hydrocarbon
- solvent
- extract
- liquid
- 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.)
- Pending
Links
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
PURPOSE: To separate and purify a dicarboxylic acid with a good hue containing small amounts of impurities, by extracting the dicarboxylic acid with an aromatic hydrocarbon solvent, and bringing the extract into contact with a small amount of a treating liquid, e.g. a solvent which is soluble in water and insoluble in the aromatic hydrocarbon.
CONSTITUTION: A fungus body is removed from a fermentation liquid, and an inorganic acid is added to adjust the pH of the liquid to 4.0 or lower. The free dicarboxylic acid is deposited, and the liquid is brought into contact with an aromatic hydrocarbon solvent at 60W100°C to extract the dicarboxylic acid preferentially in the aromatic hydrocarbon phase. The extract is then brought into contact with a small amount of a treating liquid consisting of a solvent which is soluble in water and substantially insoluble in the aromatic hydrocarbon or an aqueous solution thereof at 60W100°C to shift impurities to the treating liquid phase. The extract is concentrated and cooled to crystallize and recover the dicarboxylic acid. Ethylene glycol, glycerol, 1,3-propanediol, etc. may be cited as the solvent which is soluble in water and substantially insoluble in the aromatic hydrocarbon.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8930779A JPS5615694A (en) | 1979-07-16 | 1979-07-16 | Purification of dicarboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8930779A JPS5615694A (en) | 1979-07-16 | 1979-07-16 | Purification of dicarboxylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5615694A true JPS5615694A (en) | 1981-02-14 |
Family
ID=13967001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8930779A Pending JPS5615694A (en) | 1979-07-16 | 1979-07-16 | Purification of dicarboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5615694A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904389A (en) * | 1987-06-19 | 1990-02-27 | Henkel Kommanditgesellschaft Auf Aktien | Process for the separation of dicarboxylic acids |
| EP1991515A2 (en) * | 2006-02-10 | 2008-11-19 | DuPont Tate & Lyle Bio Products Company, LLC | Bio-derived 1,3-propanediol and its conjugate esters as natural and non irritating solvents for biomass-derived extracts fragrance concentrates, and oils |
| JP2021038157A (en) * | 2019-08-30 | 2021-03-11 | 住友ベークライト株式会社 | Production method of cyclic compound or derivative thereof |
-
1979
- 1979-07-16 JP JP8930779A patent/JPS5615694A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904389A (en) * | 1987-06-19 | 1990-02-27 | Henkel Kommanditgesellschaft Auf Aktien | Process for the separation of dicarboxylic acids |
| EP1991515A2 (en) * | 2006-02-10 | 2008-11-19 | DuPont Tate & Lyle Bio Products Company, LLC | Bio-derived 1,3-propanediol and its conjugate esters as natural and non irritating solvents for biomass-derived extracts fragrance concentrates, and oils |
| EP1991515A4 (en) * | 2006-02-10 | 2013-03-06 | Dupont Tate & Lyle Bio Products Company Llc | Bio-derived 1,3-propanediol and its conjugate esters as natural and non irritating solvents for biomass-derived extracts fragrance concentrates, and oils |
| EP3085683A1 (en) * | 2006-02-10 | 2016-10-26 | DuPont Tate & Lyle Bio Products Company, LLC | Bio-derived 1,3-propanediol as natural and non irritating solvents for biomass-derived extracts, fragrance concentrates, and oils |
| US9668951B2 (en) | 2006-02-10 | 2017-06-06 | Dupont Tate & Lyle Bio Products Company, Llc | Pharmaceutical compositions comprising renewably-based biodegradable 1,3-propanediol |
| JP2021038157A (en) * | 2019-08-30 | 2021-03-11 | 住友ベークライト株式会社 | Production method of cyclic compound or derivative thereof |
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