Process for producing acicular particles containing an iron carbide
US4668414A · kind A · utility
16Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Oct 22, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/42
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for producing acicular particles containing an iron carbide which comprises, PA0 (a) contacting or not contacting acicular oxyhydroxide or acicular iron oxide with a reducing agent containing no carbon atom and, PA0 (b) contacting the iron compound of the above (a) with a reducing-and-carbonizing agent containing carbon atom or a mixture thereof with a reducing agent containing no carbon atom, (provided that CO is excluded from the reducing-and-carbonizing agent of (b) when the contact in (a) is not conducted).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.