Removal of acids from phenol using anionic exchange resins
US5124490A · kind A · utility
13Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Jun 17, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/82
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Acid contaminants leached from acidic ion-exchange resins and carried in process streams with phenol are separated from the phenol by passing the process stream in contact with an anionic exchange resin, whereby the acid contaminants react with and bond to the anionic exchange resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.