Removal of humate from bayer alumina liquors
US5133874A · kind A · utility
8Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Dec 24, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/473
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for reducing the turbidity of a Bayer process liquor containing a cationic polymer-humate complex comprising adding to said liquor a higher molecular weight, cationic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.