Patent ID: 6103107
Filing Date: 2000-08-15
Classification: B03C,H01F

Abstract:
A system for reclaiming ferrofluid having ferrofluid particles suspended in a carrier liquid from materials coated with ferrofluid having ferrofluid particles suspended in a carrier liquid produced by a ferrofluid materials separation process, the system comprising:the materials coated with ferrofluid having ferrofluid particles suspended in a carrier liquid a solvent which is the same as the carrier liquid;a washing bath which washes the materials coated with ferrofluid having ferrofluid particles suspended in a carrier liquid in the solvent which is the same as the carrier liquid until the materials coated with ferrofluid having ferrofluid particles suspended in a carrier liquid are clean and the solvent becomes contaminated with ferrofluid particles;distillation apparatus which distills the solvent contaiminated with ferrofluid particles to recover clean solvent and the distillation apparatus produces a distillation residue;a mixer which mixes an additional amount of the solvent with the distillation residue to form a slurry; andan attritor which converts the slurry to the ferrofluid having ferrofluid particles suspended in a carrier liquid.