Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1989-09-15
1991-06-11
Huppert, Michael S.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209930, 241 20, 241DIG38, 521 405, 521 465, 521 498, B03B 544, B29B 1700, C08J 1106
Patent
active
050229850
ABSTRACT:
Plastics are separated and recovered from mixtures containing plastics and other materials, by flotation in an aqueous dispersion, wherein the disperse phase comprises a substance such as for example calcium carbonate having an average mean particle size from about 1 micron to about 75 microns. The process is particularly useful for separating polyethylene and polyvinyl chloride from comminuted wire and cable scrap.
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Huppert Michael S.
Plastic Recovery Systems, Inc.
Wacyra Edward M.
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