Classification by ferrofluid density separation
US3951785A · kind A · utility
7Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C1/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of separating non-magnetic particles of different densities by using a ferrofluid to produce levitation wherein compensation is made for the magnetic attraction or interaction of the particles by removing particles too small for the desired sharpness of separation or by maintaining the ratio of the interaction force to the separation force outside of theoretical limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.