Methods of desulphurizing iron and steel and gases, such as stack gases and the like
US4084960A · kind A · utility
4Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Jul 15, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C7/064
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for desulphurizing iron, steel, stack gases and the like is provided in which rare earth oxides are reacted, in the presence of an agent, such as carbon, vacuum, reducing gases, etc. for reducing the oxygen level, with the sulphur to be removed to form one of the group consisting of rare earth sulphides, rare earth oxysulphides and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.