Skip to Content
Find More Like This
Return to Search

Process for the recovery and separation of plastics

United States Patent

July 29, 2003
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A method of separating a portion of acrylonitrile-butadiene-styrene (ABS) from a mixture containing ABS and for separating a portion of ABS and polycarbonate (PC) from a mixture of plastics containing ABS and PC is disclosed. The method includes shredding and/or granulating the mixture of plastics containing ABS and PC to provide a selected particle size; sequentially dispersing the shredded mixture of plastics in a series aqueous solutions having different specific gravities and separating the floating fraction until the desired separation is obtained. Surface tension and pH are also variable to be controlled.
Jody; Bassam J. (Tinley Park, IL), Daniels; Edward J. (Oak Lawn, IL), Pomykala, Jr.; Joseph A. (Plainfield, IL)
The University of Chicago (Chicago, IL)
09/ 821,181
March 29, 2001
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy (DOE) and The University of Chicago representing Argonne National Laboratory.