Water purification material, process therefor, and device for the removal of heavy metal toxins
US4789475A · kind A · utility
23Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Jun 23, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/516
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A filter bed material for the removal of heavy metal ions from water and process for the manufacture thereof. The bed material includes a charcoal bed having a chelating agent adsorbed thereto utilizing a polymer to aid in the adsorption of the chelating compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.