Method of reducing ores
US4002466A · kind A · utility
12Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Nov 3, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3442
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Iron ore and a mixture of methane and hydrogen are fed into a plasma arc torch and form a swirling film of material that slowly descends the walls of the torch. The ore is reduced in the torch, and metallic iron is collected in a crucible below the torch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.