Use of alginates to treat bauxite red mud
US5478477A · kind A · utility
14Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1994 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Nov 4, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Alginic acid is used in combination with high molecular weight synthetic water soluble polymers to flocculate red mud from Bayer process liquors. Superior clarity of supernatant liquor is achieved using the process of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.