Reactivation of spent alkanolamine
US4970344A · kind A · utility
20Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J39/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aqueous alkanolamine solution containing alkali metal salts of anions which form heat stable salts with such alkanolamine is reactivated by contacting the solution sequentially with a basic anion exchange resin to remove such anions and an acidic cation ion exchange resin to remove alkali metal ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.