JPS6416732A - Purification of phenols - Google Patents
Purification of phenolsInfo
- Publication number
- JPS6416732A JPS6416732A JP62172082A JP17208287A JPS6416732A JP S6416732 A JPS6416732 A JP S6416732A JP 62172082 A JP62172082 A JP 62172082A JP 17208287 A JP17208287 A JP 17208287A JP S6416732 A JPS6416732 A JP S6416732A
- Authority
- JP
- Japan
- Prior art keywords
- phenol
- liquid
- water
- hydrous
- liquid separation
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE:To purify a phenol simply and advantageously, by treating a reaction product of alkali melting of an aromatic sulfonic acid with water and an acid to give a hydrous phenol, heating the phenol approximately to the melting point of the formed phenol in a closed container and subjecting to liquid-liquid separation. CONSTITUTION:A reaction product of alkali melting of an aromatic sulfonic acid is treated with water and an acid to give a hydrous phenol, which is heated approximately to the melting point of the formed phenol in a closed container, separated into a liquid organic layer of the molten phenol and a water phase containing salts as by-products, the water phase is separated and removed from the organic phase to purity and collect the aimed phenol from the hydrous phenol without using an organic solvent, by efficiently liquid-liquid separation method instead of solid-liquid separation method at a higher separating rate than that of a well-known method with a small amount of waste water in high recovery ratio and advantageously with respect to both economy and industrial safety.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172082A JPS6416732A (en) | 1987-07-11 | 1987-07-11 | Purification of phenols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172082A JPS6416732A (en) | 1987-07-11 | 1987-07-11 | Purification of phenols |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6416732A true JPS6416732A (en) | 1989-01-20 |
Family
ID=15935203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62172082A Pending JPS6416732A (en) | 1987-07-11 | 1987-07-11 | Purification of phenols |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6416732A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816318A3 (en) * | 1996-06-18 | 1998-03-18 | Bayer Ag | Method for the preparation of 4-hydroxybiphenyl |
-
1987
- 1987-07-11 JP JP62172082A patent/JPS6416732A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816318A3 (en) * | 1996-06-18 | 1998-03-18 | Bayer Ag | Method for the preparation of 4-hydroxybiphenyl |
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