Vapor phase fluidized bed sulfation of titaniferous materials
US5618331A · kind A · utility
2Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Dec 4, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An economic, non-polluting vapor-phase system of extracting titanium values from titanium ore or slag comprises solubilizing titanium (in ore or slag) with sulfuric acid to form titanyl sulfate, hydrolyzing the titanyl sulfate to form titanium oxide hydrate, converting the latter to pigment, and recycling sulfuric acid for extracting titanium values from further ore or slag. Methodology and equipment are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.