JPS6490157A - Method for preventing diethanolamine from discoloring - Google Patents
Method for preventing diethanolamine from discoloringInfo
- Publication number
- JPS6490157A JPS6490157A JP24770087A JP24770087A JPS6490157A JP S6490157 A JPS6490157 A JP S6490157A JP 24770087 A JP24770087 A JP 24770087A JP 24770087 A JP24770087 A JP 24770087A JP S6490157 A JPS6490157 A JP S6490157A
- Authority
- JP
- Japan
- Prior art keywords
- diethanolamine
- reducing agent
- discoloration
- diethylamine
- products
- 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
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 title abstract 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 3
- 238000002845 discoloration Methods 0.000 abstract 3
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 abstract 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 230000005587 bubbling Effects 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 229910052987 metal hydride Inorganic materials 0.000 abstract 1
- 150000004681 metal hydrides Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE:To prevent diethylethanolamine which is used as a synthetic intermediate of coatings, medicines and a variety of chemicals, from being discolored, by allowing diethanolamine synthesized from diethylamine and ethylene oxide to contact with a reducing agent. CONSTITUTION:The crude mixture resulting from the reaction between diethylamine and ethylene dioxide is distilled to remove low boiling components such as ethylamine, alcohols or the like. Then, a reducing agent such as a metal hydride such as aluminum borohydride is used to avoid the discoloration of the diethanolamine. A trace amount of oxygen dissolved in the product which cannot be removed by bubbling an inert gas oxidizes by-products such as ethers or ketones formed by the reaction to cause discoloration, and the reducing agent removes these by-products, thus discoloration is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24770087A JPS6490157A (en) | 1987-09-30 | 1987-09-30 | Method for preventing diethanolamine from discoloring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24770087A JPS6490157A (en) | 1987-09-30 | 1987-09-30 | Method for preventing diethanolamine from discoloring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6490157A true JPS6490157A (en) | 1989-04-06 |
Family
ID=17167351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24770087A Pending JPS6490157A (en) | 1987-09-30 | 1987-09-30 | Method for preventing diethanolamine from discoloring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6490157A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01160947A (en) * | 1987-12-17 | 1989-06-23 | Mitsubishi Gas Chem Co Inc | Method for purifying dialkylaminoethanol |
| JP2008013465A (en) * | 2006-07-04 | 2008-01-24 | Sanyo Chem Ind Ltd | Manufacturing method of aliphatic amine alkylene oxide adduct |
| JP2010168348A (en) * | 2008-12-26 | 2010-08-05 | Sanyo Chem Ind Ltd | Method for producing aliphatic amine alkylene oxide adduct |
-
1987
- 1987-09-30 JP JP24770087A patent/JPS6490157A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01160947A (en) * | 1987-12-17 | 1989-06-23 | Mitsubishi Gas Chem Co Inc | Method for purifying dialkylaminoethanol |
| JP2008013465A (en) * | 2006-07-04 | 2008-01-24 | Sanyo Chem Ind Ltd | Manufacturing method of aliphatic amine alkylene oxide adduct |
| JP2010168348A (en) * | 2008-12-26 | 2010-08-05 | Sanyo Chem Ind Ltd | Method for producing aliphatic amine alkylene oxide adduct |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5528968A (en) | Production of amine oxide | |
| CA2084198A1 (en) | Peroxy acid generator | |
| GB8811009D0 (en) | Chemical process | |
| EP0388857A3 (en) | Process for production of alkyl glycoside excellent in hue | |
| JPS5695126A (en) | Removing method of oxygen from gas containing unsaturated hydrocarbon | |
| JPS6490157A (en) | Method for preventing diethanolamine from discoloring | |
| JPS5481211A (en) | Production of dicarboxylic diester | |
| GB1060708A (en) | Process for producing iodine pentafluoride | |
| JPS5439791A (en) | Operation method of reactor | |
| AU630289B2 (en) | Process for the production of alkyltetrahydroanthrahydroquinones and working solutions containing the latter for the production of hydrogen peroxide according to the anthraquinone process | |
| JPS56109805A (en) | Removal organic purities from phosphoric acid | |
| GB1298386A (en) | Process for the preparation of tertiary phosphine oxides | |
| EP0387913A3 (en) | Process for production of alkyl glycoside stable in hue and odor | |
| GB478141A (en) | Improvements in and relating to processes for the manufacture of butyl alcohol from ethyl alcohol | |
| AU640033B2 (en) | Process for the recovery of rhodium from the residues of the distillation of products of the oxo process | |
| Van Tilborg | Pro-oxidant action of sulfur compounds: Catalysis of autoxidation by onium salts | |
| GB1210780A (en) | A method of preparing a bis(2 hydroxyethyl) ester of an alkali metal salt of 3,5-dicarboxy-benzene sulphuric acid | |
| JPS5431015A (en) | Manufacture of free cutting zirconium steel | |
| GB1523979A (en) | Process for reducing chlorate content of aqueous alkali metal hydroxide solution which contains chlorate | |
| ES445290A1 (en) | Process for polymerization of ethylene | |
| MY108019A (en) | Process for producing desulfurized fats & oils or fatty acid esters & process for producing alcohols by using said desulfurized fats & oils or fatty acid esters. | |
| JPS643152A (en) | Production of glycol esters | |
| JPS52217A (en) | Process for removal formaldehyde in aqueous solution | |
| JPS5210233A (en) | Process for oxidation of aromatic alcohols | |
| JPS55147234A (en) | Preparation of (+)-2-isopropyl-5-methyl-cyclohexanone |