Process for preparing ferric sulfate
US5766566A · kind A · utility
6Cited by
4References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 2, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G49/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process of preparing ferric sulfate by forming a slurry which contains ferrous sulfate and sulfuric acid, the slurry containing bivalent iron in both the solution phase and the solid phase, and by oxidizing this slurry to form a ferric sulfate slurry. When so desired, the obtained ferric sulfate slurry is solidified to form solid ferric sulfate. The obtained ferric sulfate may, as such or dissolved in water, be used for the treatment of waste waters or for preparing pure tap water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.