Hydrolyzed dasheen starch flocculants
US4560416A · kind A · utility
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3Claims
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Key dates
| Filing date | Nov 19, 1984 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Nov 19, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/5263
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Dasheen starch hydrolyzed in the presence of insoluble metal salts formed in situ is a surprisingly effective flocculant for destabilizing dilute as well as thick sludge suspensions and is 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.