Process for removing dissolved contaminants from aqueous solutions using getters and reversibly dispersible carriers
US5078900A · kind A · utility
27Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldOrganic fine chemistry
- 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 getter compound and a non-polymeric carrier compound in a dispersed state to remove dissolved contaminants or recover dissolved valuable materials. Suitable carrier compounds having pendant long chain hydrocarbon radicals and hydrophilic 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.