Process for making starch flocculants of improved efficiency
US4508627A · kind A · utility
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5References
17Claims
0Family size
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Key dates
| Filing date | Sep 15, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Sep 15, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B30/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for making an improved starch flocculant by heating an aqueous dispersion comprising about 4 to about 12% starch solids, lime and alum until maximum vicosity is obtained, adding a metal salt and finally effecting hydrolysis by additional heating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.