Method and apparatus for separating polymer from a plastic, and

Details Method and apparatus for separating polymer from a plastic, and Method and apparatus for separating polymer from a plastic, and

1995-08-01

1998-04-14

Merriam, Andrew E.C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

521 40, 521 405, 528483, 528501, 523332, 523340, 523342, 523343, C08F 610

Patent

active

057392706

ABSTRACT:
A method and apparatus for continuously separating polymer from a plastic, and the resulting separated polymer. The plastic is made flowable into a stream through melting or solubilizing. A critical fluid, such as supercritical carbon dioxide, is added to the plastic stream to promote mechanical or thermodynamic separation of the polymer from contaminants and other components of the plastic.

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A Study of the Application of Supercritical Fluids in the Recycling Alkaline-Wash Process as a Novel Means for Obtaining Cleaner, Near-Virgin Recycled Plastic, Occhiogrosso, Filpo, Lucas, prepared for presentation at the ALChe Spring National Meeting, Atlanta, Georgia, Apr. 17-21, 1994, for the Application of Supercritical Fluids Symposium.

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