Method for beneficiating titanium-bearing material containing iron
US5660805A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Jan 26, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B34/1204
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for beneficiating particulate titanium-bearing ore containing iron oxides is disclosed. The first step of the process entails prereducing the ore to convert about 20-90 percent of the iron oxides in the ore to metallic iron. Next, the prereduced ore is introduced into a mechanical reduction kiln and contacted with HCl and particulate carbonaceous reducing material. The turning and cascading of the materials in the kiln, in the presence of HCl and the reducing material, converts at least some remaining iron oxide in the ore to metallic iron and causes metallic iron to be liberated from the ore grains. Particulate metallic iron having a particle size of at least 50 microns is thereby formed. Finally, the particulate iron is separated from the ore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.