JPS5444625A - Production of tribromophenol - Google Patents
Production of tribromophenolInfo
- Publication number
- JPS5444625A JPS5444625A JP11048477A JP11048477A JPS5444625A JP S5444625 A JPS5444625 A JP S5444625A JP 11048477 A JP11048477 A JP 11048477A JP 11048477 A JP11048477 A JP 11048477A JP S5444625 A JPS5444625 A JP S5444625A
- Authority
- JP
- Japan
- Prior art keywords
- organic solvent
- water
- tribromophenol
- heterogeneous
- hydrogen chloride
- 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
Abstract
PURPOSE: The bromination of phenol is conducted in a heterogeneous system consisting of water and an organic solvent and the hydrogen chloride, by-product, is recovered by heating under refluxing, thereby producing high-purity tribromophenol in high yield.
CONSTITUTION: Phenol is brominate by using bromine chloride in a heterogeneous solvent system consisting of water and an organic solvent at 5W45°C. After addition of bromine chloride, the reaction mixture is heated under refluxing and hydrogen chloride is removed out of the system and recovered. The tribromophenol dissolving in the organic solvent is, without isolation, used for other purposes. When necessary, the tribromophenol in the organic solvent is reacted with an aqueous alkali to form its sodium salt. The heterogeneous solvent is composed of water containing more than 5 moles of hydrochloric acid per 1kg and an organic solvent which is less soluble in water and contains halogen.
EFFECT: Hydrogen chloride formed during the reaction is immediately absorbed in water and does not accumulate in the organic solvent in which the bromination occurrs, thereby preventing the reduction of reaction rate.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11048477A JPS6033096B2 (en) | 1977-09-16 | 1977-09-16 | Method for producing tribromophenol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11048477A JPS6033096B2 (en) | 1977-09-16 | 1977-09-16 | Method for producing tribromophenol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5444625A true JPS5444625A (en) | 1979-04-09 |
JPS6033096B2 JPS6033096B2 (en) | 1985-08-01 |
Family
ID=14536889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11048477A Expired JPS6033096B2 (en) | 1977-09-16 | 1977-09-16 | Method for producing tribromophenol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6033096B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0725801A (en) * | 1993-07-09 | 1995-01-27 | Dai Ichi Kogyo Seiyaku Co Ltd | Highly concentrated aqueous solution of tribromophenolate and its preparation |
JPH0725800A (en) * | 1993-07-09 | 1995-01-27 | Dai Ichi Kogyo Seiyaku Co Ltd | Tribromophenolate aqueous solution and preparation thereof |
CN1319922C (en) * | 2005-01-06 | 2007-06-06 | 化学工业部连云港设计研究院 | Post treatment of bromophenisic acid |
CN103275025A (en) * | 2013-06-17 | 2013-09-04 | 山东寿光神润发海洋化工有限公司 | Optimized production method of Tri (tribromophenyl) cyanurate |
CN114230444A (en) * | 2021-12-16 | 2022-03-25 | 大连盐化集团有限公司 | Preparation method of tribromophenol |
-
1977
- 1977-09-16 JP JP11048477A patent/JPS6033096B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0725801A (en) * | 1993-07-09 | 1995-01-27 | Dai Ichi Kogyo Seiyaku Co Ltd | Highly concentrated aqueous solution of tribromophenolate and its preparation |
JPH0725800A (en) * | 1993-07-09 | 1995-01-27 | Dai Ichi Kogyo Seiyaku Co Ltd | Tribromophenolate aqueous solution and preparation thereof |
CN1319922C (en) * | 2005-01-06 | 2007-06-06 | 化学工业部连云港设计研究院 | Post treatment of bromophenisic acid |
CN103275025A (en) * | 2013-06-17 | 2013-09-04 | 山东寿光神润发海洋化工有限公司 | Optimized production method of Tri (tribromophenyl) cyanurate |
CN114230444A (en) * | 2021-12-16 | 2022-03-25 | 大连盐化集团有限公司 | Preparation method of tribromophenol |
Also Published As
Publication number | Publication date |
---|---|
JPS6033096B2 (en) | 1985-08-01 |
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