Hydrolyzed yam starch flocculants
US4566909A · kind A · utility
5Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Nov 19, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/5263
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Certain yam starches hydrolyzed in the presence of insoluble metal salts formed in situ are surprisingly effective flocculants for destabilizing dilute as well as thick sludge suspensions and are particularly effective when used in the treatment of bituminous tar sands tailings and in phosphate slimes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.