Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1987-03-12
1988-05-24
Bashore, S. Leon
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209 17, 209173, 209211, B03B 534, B03B 544
Patent
active
047464224
ABSTRACT:
The present invention relates to a method for the separation of a mixture of plastic particles and contaminant. According to the invention, a two-phase solution composed of a halogenated hydrocarbon and water are applied to the mixture of plastic and contaminant. The two-phase solution and mixture are placed in a separator. The two-phase solution and mixture are rotated in the separator. During rotation, the plastic contained in the mixture of plastic and contaminant, which has a density less than the halogenated hydrocarbon contained in the two-phase solution, is separated by gravitation from the contaminant and carried by the water of the two-phase solution. Also during rotation, the contaminant contained in the mixture of plastic and contaminant, which has a density greater than the halogenated hydrocarbon of the two-phase solution, is separated by gravitation from the plastic and carried by the halogenated hydrocarbon of the two-phase solution. The plastic and water are ejected from one part of the separator. The contaminant and halogenated hydrocarbon are ejected from another part of the separator. The plastic is then recovered for recycling purposes.
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Bashore S. Leon
Lithgow Thomas M.
Rutgers University
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