Process for recovering organic hydroxides from waste solutions
US5951845A · kind A · utility
8Cited by
10References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Mar 4, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In one embodiment, the present invention relates to a process for recovering an organic hydroxide from waste solutions containing the organic hydroxide and impurities including the steps: contacting the waste solution with a metal ion scavenger to remove metal ion impurities; charging the waste solution to an electrochemical cell containing at least two compartments, a cathode, an anode and a divider and passing a current through the cell whereby the organic hydroxide is regenerated; and recovering the organic hydroxide from the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.