Use of material based on organic and/or inorganic fibres and chitosan for fixing metal ions
US7189326B2 · kind B2 · utility
2Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2002 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Jul 15, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/006
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention concerns the use of a material based on organic and/or inorganic fibres and chitosan for fixing metal ions contained in an effluent. The invention is characterised in that chitosan represents between 0.01 and 20% by dry weight of fibres and its degree of deacetylation is higher than 90%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.