JPS5753423A - Separation of polyhydric phenol - Google Patents
Separation of polyhydric phenolInfo
- Publication number
- JPS5753423A JPS5753423A JP12836280A JP12836280A JPS5753423A JP S5753423 A JPS5753423 A JP S5753423A JP 12836280 A JP12836280 A JP 12836280A JP 12836280 A JP12836280 A JP 12836280A JP S5753423 A JPS5753423 A JP S5753423A
- Authority
- JP
- Japan
- Prior art keywords
- polyhydric phenol
- extractant
- aqueous solution
- ketones
- ethers
- 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: An extractant hard-soluble in water, selected from ethers, ketones and esters, is used to separate polyhydric phenol from an aqueous solution containing polyhydric phenol and cyclohexanepolyols selectively with industrial advantage.
CONSTITUTION: An aqueous solution containing polyhydric phenol and cyclohexane polyol which are difficult to be separated from each other by distillation or crystallization, because of their similarity in physical properties, which is obtained, for example, on the production of polyhydric phenol such as catechol, resorcinol, hydroquinone or pyrogallol by dehydrogenation of cyclohexane polyol, is brought into contact with an extractant selected from ethers, ketones and esters, all of which are hard soluble in water, such as isobutyl methyl ketone to extract the polyhydric phenol selectively. The amount of the extractant is usually 0.05W20 times the volume of the aqueous solution and the extraction is preferably operated in an inert atmosphere such as nitrogen.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12836280A JPS5753423A (en) | 1980-09-16 | 1980-09-16 | Separation of polyhydric phenol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12836280A JPS5753423A (en) | 1980-09-16 | 1980-09-16 | Separation of polyhydric phenol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5753423A true JPS5753423A (en) | 1982-03-30 |
JPS6332053B2 JPS6332053B2 (en) | 1988-06-28 |
Family
ID=14982937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12836280A Granted JPS5753423A (en) | 1980-09-16 | 1980-09-16 | Separation of polyhydric phenol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5753423A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11589564B2 (en) | 2018-06-28 | 2023-02-28 | Mjøs Metallvarefabrikk As | Pump device |
-
1980
- 1980-09-16 JP JP12836280A patent/JPS5753423A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11589564B2 (en) | 2018-06-28 | 2023-02-28 | Mjøs Metallvarefabrikk As | Pump device |
Also Published As
Publication number | Publication date |
---|---|
JPS6332053B2 (en) | 1988-06-28 |
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