Process for production of magnetite spheres with an arc heater
US4071588A · kind A · utility
6Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Dec 9, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/61
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of magnetic spheres from grit of magnetite ore by introducing the grit into an arc heated gas jet, thus heating the grit to a temperature of at least 1600.degree. C, and allowing the melted magnetite droplets to spheroidize and cool to a solid state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.