JPS5520749A - Method of separating glycols - Google Patents
Method of separating glycolsInfo
- Publication number
- JPS5520749A JPS5520749A JP9439478A JP9439478A JPS5520749A JP S5520749 A JPS5520749 A JP S5520749A JP 9439478 A JP9439478 A JP 9439478A JP 9439478 A JP9439478 A JP 9439478A JP S5520749 A JPS5520749 A JP S5520749A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- polar solvent
- mixture
- liquid
- glycols
- 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)
Abstract
PURPOSE: A mixture of aliphatic glycols and nonglycols that boil at temperatures near the boiling points of glycol is subjected to liquid-liquid extraction with a specific polar solvent and nonpolar solvent, thus separating title compounds, a starting material of synthetic resins, inexpensively and efficiently.
CONSTITUTION: Aliphatic glycols of 5W19 carbon atoms and nonglycols boiling at temperatures near the boiling points of glycols are separated from each other by liquid-liquid extraction using a polar solvent and a nonpolar solvent as hexane or heptane wherein a mixture of over 65wt% of methanol and less than 35wt% of water is used as the polar solvent. The ratio of the extraction solvent (polar solvent + nonpolar solvent) to the mixture to be extracted is about over 1(ml/g), preferably over 3. The temperature is 20W40°C.
USE: Lubricant, coating, adhesive, raw material of perfumes.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9439478A JPS5520749A (en) | 1978-08-02 | 1978-08-02 | Method of separating glycols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9439478A JPS5520749A (en) | 1978-08-02 | 1978-08-02 | Method of separating glycols |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5520749A true JPS5520749A (en) | 1980-02-14 |
JPS6220172B2 JPS6220172B2 (en) | 1987-05-06 |
Family
ID=14109045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9439478A Granted JPS5520749A (en) | 1978-08-02 | 1978-08-02 | Method of separating glycols |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5520749A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076896A (en) * | 1988-06-13 | 1991-12-31 | Henkel Kommanditgesellschaft Auf Aktien | Process for the separation of propylene glycol from fatty alcohols |
KR20190056764A (en) * | 2017-11-17 | 2019-05-27 | 주식회사비앤비 | anufacturing Method of High Purity 1,2-Octanediol |
-
1978
- 1978-08-02 JP JP9439478A patent/JPS5520749A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076896A (en) * | 1988-06-13 | 1991-12-31 | Henkel Kommanditgesellschaft Auf Aktien | Process for the separation of propylene glycol from fatty alcohols |
KR20190056764A (en) * | 2017-11-17 | 2019-05-27 | 주식회사비앤비 | anufacturing Method of High Purity 1,2-Octanediol |
Also Published As
Publication number | Publication date |
---|---|
JPS6220172B2 (en) | 1987-05-06 |
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