Method of preparing magnesium oxide spheroids
US3943211A · kind A · utility
7Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1973 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Jun 11, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making sized refractory spheroids of magnesium oxide having consistent electrical resistance properties directly from particulate magnesium ore without crust and substantially free from contaminates by feeding particulate magnesium ore from a supply reservoir into a plasma zone of a plasma generator capable of melting particulate solids from the outside inwardly. The melted particles of the refractory magnesium ore are collected directly from the plasma zone in individual particulate and substantially spherical forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.