Process for beneficiating oxidic ores
US4576636A · kind A · utility
6Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1981 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Feb 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the beneficiation of an iron-containing material is carried out by first chlorinating the iron-containing material. Oxidation of ferrous chloride in the effluent gas from the chlorination is carried out under controlled conditions of oxygen supply so that more than 50% but less than 100% of the ferrous chloride is oxidized. In this way chlorine gas is separated from the process stream in a relatively pure form which can be utilized in a continuous process by recycle to another chlorination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.