Appeal No. 1997-1869
Application 08/215,462
e) separating said residual material from said aqueous solvent and
recycling said aqueous solvent through said cleaning process,
and
f) recovering cleaned plastic pieces from said process suitable for
recycling said plastic.
21. A process for reclaiming and preparing plastic containers for recycling
said plastic which containers have associated therewith residual material such as
an organic liquid phase and a solid waste phase comprising the steps of:
a) dividing said containers into relatively large pieces of plastic that
are small enough to allow aqueous solvent to reach each area
of said plastic pieces,
b) loading said cut plastic pieces into a vessel with as aqueous
based solvent adapted to loosen and suspend said residual
material,
c) agitating said aqueous solvent by rotating or reciprocating a
part of said vessel to loosen, suspend and remove said residual
material from said plastic pieces,
d) separating said aqueous solvent containing any residual material
suspended therein from said plastic pieces,
e) separating said aqueous solvent from any organic liquid residual
material and from any solid waste residual material,
f) regenerating said aqueous solvent and recycling said aqueous
solvent in the process,
g) recovering organic liquid residual material and solid waste
residual material free of aqueous solvent, and
h) recovering cleaned plastic pieces ready for recycling.
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