Method of manufacturing, concentrating, and separating enhanced magnetic parameter material from other magnetic co-products
US4834811A · kind A · utility
6Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Jun 19, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/057
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for separating initially non-magnetized ferromagnetic material. The material has a distribution of magnetic parameters, and is separated into a first fraction having relatively high magnetic parameters and a second fraction having relatively low magnetic parameters. The method comprises applying a magnetic field to the materials, the magnetic field being high enough to magnetize the low magnetic parameter fraction, but low enough to avoid substantial magnetization of the high parameter fraction. Thereafter the fractions of material are magnetically separated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.