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METHOD AND APPARATUS FOR RECYCLING FERROFLUID CONSTITUENTS USED IN A MATERIALS SEPARATION PROCESS
METHOD AND APPARATUS FOR RECYCLING FERROFLUID CONSTITUENTS USED IN A MATERIALS SEPARATION PROCESS
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机译:回收材料分离过程中使用的铁氟化合物的方法和装置
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摘要
Ferrofluid coated particles resulting from a ferrofluid materials separation process are washed with a solvent which is the same material as the liquid carrier employed in the ferrofluid. The result is a 'dirty' solvent which is a very weak ferrofluid. The dirty solvent is then filtered or centrifuged to remove dust particles and other impurities and then the solvent is recovered by distillation in a distillation unit. The solvent can then be reused in the materials reclamation process. The residue in the distillation unit is surfactant-coated particles or ferrofluid. This residue is mixed with either clean or unprocessed solvent in the right proportion and the slurry is passed through an attritor to convert it to a high grade ferrofluid. The ferrofluid can also be reused in the materials separation process.
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