Method for separation of plastic mixtures based on magneto-archimedes levitation
AssigneeJapan Society for the Promotion of Science
InventorsTsunehisa Kimura, Shogo Mamada, Masafumi Yamato, Koichi Kitazawa
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Abstract
Under a magnetic field gradient, solid plastic particles floating and/or sinking in a suspending liquid (most suitably a paramagnetic one) are levitated or anti-levitated at different locations depending on their densities and diamagnetic susceptibilities.
Claims5
A method for separating different kinds of solid plastic particles in a solid plastic mixture, said method comprising the steps of preparing a solid plastic mixture comprising plural kinds of diamagnetic solid plastic particles, floating, suspending or precipitating said solid plastic particles in a supporting liquid, applying a magnetic field gradient to the solid plastic mixture, and leviating or anti-leviating said the plastic particles at different locations in the supporting liquid under a magnetic field gradient, depending upon their densities and diamagnetic susceptibilities.
Dependencies are inferred from the claim text.