Concentrating and reclaiming magnetic fluids
US4435302A · kind A · utility
2Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Concentration and reclaiming of magnetic fluids is accomplished by (1) flocculation of the magnetic particles by addition of hydrochloric acid, (2) separation of the resulting flocculated particles, and (3) redispersion of the flocculated particles by addition of an aqueous suspension of ammonia, preferably with heating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.