Adsorption process for organic base recovery from aqueous brine solutions
US5759406A · kind A · utility
9Cited by
5References
9Claims
0Family size
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Key dates
| Filing date | Aug 15, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Aug 15, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/86
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adsorption process uses a non-ion-exchangeable adsorbent polymeric resin of a monoethylenically unsaturated monomer such as styrene and a polyvinylidene monomer such as divinylbenzene for the adsorption of organic bases, such amines, amine salts and guanidinium salts, from high ionic strength aqueous solutions. Desorption may be employed for the recovery of said organic bases, and said adsorbent resin may be regenerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.