Ionically modified cellulose materials for removal of heavy metal ions
US4133929A · kind A · utility
10Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Jun 14, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2508
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A cellulosic absorption material for the removal of heavy metal ions from fluids, which material contains at least one chelate-forming amino acid group which is bonded through the group of the formula ##STR1## to the cellulose portion wherein the carbonyl group is linked to the chelate-forming radical and the oxygen is linked to the cellulose portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.