GB998457A - Improvements relating to ethanolamines - Google Patents
Improvements relating to ethanolaminesInfo
- Publication number
- GB998457A GB998457A GB18054/64A GB1805464A GB998457A GB 998457 A GB998457 A GB 998457A GB 18054/64 A GB18054/64 A GB 18054/64A GB 1805464 A GB1805464 A GB 1805464A GB 998457 A GB998457 A GB 998457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethanolamine
- ethanolamines
- borohydride
- containers
- alkali metal
- 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.)
- Expired
Links
- 150000002169 ethanolamines Chemical class 0.000 title abstract 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 abstract 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 238000002845 discoloration Methods 0.000 abstract 1
- 239000008188 pellet Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
- C07C213/10—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises compositions containing one or more ethanolamines and an alkali metal borohydride in sufficient quantity to prevent substantial discoloration of the ethanolamine(s) in the presence of ferrous metal. Said compositions are obtained by adding the alkali metal borohydride, which may be in the form of dry pellets, a dry powder, or, preferably, an aqueous or aqueous alkaline solution, to the ethanolamine(s), preferably at 30 DEG to 70 DEG C., whilst agitating the system. When the ethanolamine(s) are to be stored in ferrous metal containers the borohydride may be added to the ethanolamine(s) before or after said ethanolamines are introduced into said containers. Specified amounts of borohydride employed are 0.001 to 0.05% by weight of the ethanolamine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US277719A US3159276A (en) | 1963-05-03 | 1963-05-03 | Ethanolamines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB998457A true GB998457A (en) | 1965-07-14 |
Family
ID=23062079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18054/64A Expired GB998457A (en) | 1963-05-03 | 1964-04-30 | Improvements relating to ethanolamines |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3159276A (en) |
| BE (1) | BE647398A (en) |
| DE (1) | DE1265757B (en) |
| GB (1) | GB998457A (en) |
| NL (1) | NL6404799A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3327898A (en) * | 1964-10-19 | 1967-06-27 | Bioconsultants Inc | Titration means and method |
| US3373174A (en) * | 1964-12-17 | 1968-03-12 | Armour & Co | A method for improving color and the color and odor stability of fatty amides |
| US3742059A (en) * | 1971-05-24 | 1973-06-26 | Dow Chemical Co | Color-stabilized alkanolamines |
| US4379024A (en) * | 1981-07-23 | 1983-04-05 | Pennwalt Corporation | Process for the manufacture of alkylaminoalkanol |
| US5133838A (en) * | 1991-02-28 | 1992-07-28 | E. I. Du Pont De Nemours And Company | Purification of 6-aminocapronitrile |
| DE19622269A1 (en) * | 1996-06-03 | 1997-12-04 | Basf Ag | Process for the purification of sterically hindered 4-aminopiperidines |
| DE19622268C1 (en) * | 1996-06-03 | 1997-10-23 | Basf Ag | Suppressing dimerisation of hindered 4-amino-piperidine compounds |
| US11203568B2 (en) | 2015-12-29 | 2021-12-21 | Sabic Global Technologies B.V. | Methods of reducing color in alkanolamine compositions and compositions produced thereby |
-
1963
- 1963-05-03 US US277719A patent/US3159276A/en not_active Expired - Lifetime
-
1964
- 1964-04-29 NL NL6404799A patent/NL6404799A/xx unknown
- 1964-04-30 BE BE647398A patent/BE647398A/xx unknown
- 1964-04-30 DE DEA45921A patent/DE1265757B/en active Pending
- 1964-04-30 GB GB18054/64A patent/GB998457A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6404799A (en) | 1964-11-04 |
| US3159276A (en) | 1964-12-01 |
| BE647398A (en) | 1964-08-17 |
| DE1265757B (en) | 1968-04-11 |
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