Dynamic properties of a magnetic particulate in a fluid.
Abstract
The fluidized bed is a mainstay technique of chemical separations. In this method a particulate, functionalized to adsorb a desired molecule is suspended against gravity in a flowing fluid containing this molecule in solution. The efficacy of fluidized beds can often be improved by introducing a magnetic degree of freedom into the functionalized particles: Application of an external magnetic field tends to stabilize the flow, increasing contact between the particulate and the fluid phase. We have conducted preliminary experiments on settled (i.e. nonflowing) beds. In particular, ac and dc magnetic measurements have been performed on settled beds in order to determine the extent of rotational freedom of the particulate, and it's relationship to the magnetic signature of the bed.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 1997
- Bibcode:
- 1997APS..MAR.D4172F