Water disinfection method using metal-ligand complexes
US5632904A · kind A · utility
28Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Apr 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/50
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Metal-ligand complexes produced by coordination chemistry for use as a biocide and a method for detoxifying water or effluent are disclosed. Metallic biocides are bound with acceptable complexing agents as a type of coordination compound to shield the metal ions from other reactants in the water supply being treated while keeping the metal ions available for biocidal action. In particular, pre-mixed solutions of metal-ligand complexes are added as a disinfectant to water containing ions such as calcium, iron, carbonates, chlorides, nitrates, phosphates, and sulfates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.