JPS562942A - Preparation of stabilized triethanolamine - Google Patents
Preparation of stabilized triethanolamineInfo
- Publication number
- JPS562942A JPS562942A JP7756879A JP7756879A JPS562942A JP S562942 A JPS562942 A JP S562942A JP 7756879 A JP7756879 A JP 7756879A JP 7756879 A JP7756879 A JP 7756879A JP S562942 A JPS562942 A JP S562942A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- distillation
- triethanolamine
- containing gas
- pref
- 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: To prepare the title compound exhibiting little discoloration by acid neutralization, by distilling the crude title compound obtained from the reaction product of ethylene oxide and ammonia, and contacting the distillate immediately after the distillation, with an oxygen-containing gas in a specific temperature range.
CONSTITUTION: Purified triethanolamine which exhibits little discoloration by acid neutralization, is prepared by (1) separating crude triethanolamine from the reaction product of ethylene oxide and ammonia by vacuum distillation, and (2) contacting the distillate with an oxygen-containing gas at 25W100°C within 50hr from the distillation (pref. immediately after the distillation). The oxygen-containing gas is a mixture of oxygen and other inert gas, pref. air. The contact can be carried out batchwise or continuously.
EFFECT: The purification can be carried out without using complicated apparatuses, or additives.
USE: Raw materials of cosmetics, detergents, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7756879A JPS6013024B2 (en) | 1979-06-21 | 1979-06-21 | Method for producing stabilized triethanolamine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7756879A JPS6013024B2 (en) | 1979-06-21 | 1979-06-21 | Method for producing stabilized triethanolamine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562942A true JPS562942A (en) | 1981-01-13 |
JPS6013024B2 JPS6013024B2 (en) | 1985-04-04 |
Family
ID=13637612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7756879A Expired JPS6013024B2 (en) | 1979-06-21 | 1979-06-21 | Method for producing stabilized triethanolamine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6013024B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234716A (en) * | 1975-09-09 | 1977-03-16 | Fuji Photo Film Co Ltd | Dye containing photographic light sensitive material |
JP2001294562A (en) * | 2000-03-11 | 2001-10-23 | Basf Ag | Method for producing alkanolamine with improved color quality |
-
1979
- 1979-06-21 JP JP7756879A patent/JPS6013024B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234716A (en) * | 1975-09-09 | 1977-03-16 | Fuji Photo Film Co Ltd | Dye containing photographic light sensitive material |
JPS588499B2 (en) * | 1975-09-09 | 1983-02-16 | 富士写真フイルム株式会社 | Senriyouofukumushashinkankouzairiyou |
JP2001294562A (en) * | 2000-03-11 | 2001-10-23 | Basf Ag | Method for producing alkanolamine with improved color quality |
Also Published As
Publication number | Publication date |
---|---|
JPS6013024B2 (en) | 1985-04-04 |
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