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Title: Process for the recovery and separation of plastics

Patent ·
OSTI ID:1174422

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.

Research Organization:
Univ. of Chicago, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31-109-ENG-38
Assignee:
University Of Chicago
Patent Number(s):
6,599,950
Application Number:
09/821,181
OSTI ID:
1174422
Country of Publication:
United States
Language:
English