Process for removing dissolved contaminants from aqueous solutions using reversibly dispersible getters
US5055201A · kind A · utility
10Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for purifying contaminated aqueous solutions without using ion exchange resins or organic solvents is provided. The process comprises contacting an aqueous solution with a non-polymeric getter compound in a dispersed state to remove dissolved contaminants or recover dissolved valuable materials. Suitable getter compounds having pendant long chain hydrocarbon radicals and complexing moieties are disclosed. The process is highly efficient and effective for removing a wide variety of dissolved contaminants such as metal ions, non-metal ions and dissolved organic contaminants such as dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.