Process to recycle shredder residue

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:874163

Jody, Bassam J ^[1]; Daniels, Edward J ^[2]; Bonsignore, Patrick V ^[3]

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1. Chicago, IL
2. Oak Lawn, IL
3. Channahon, IL

A system and process for recycling shredder residue, in which separating any polyurethane foam materials are first separated. Then separate a fines fraction of less than about 1/4 inch leaving a plastics-rich fraction. Thereafter, the plastics rich fraction is sequentially contacted with a series of solvents beginning with one or more of hexane or an alcohol to remove automotive fluids; acetone to remove ABS; one or more of EDC, THF or a ketone having a boiling point of not greater than about 125.degree. C. to remove PVC; and one or more of xylene or toluene to remove polypropylene and polyethylene. The solvents are recovered and recycled.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: The University of Chicago (Chicago, IL)
• Patent Number(s): US 6329436
• OSTI ID: 874163
• Country of Publication: United States
• Language: English

Related Subjects

process
recycle
shredder
residue
recycling
separating
polyurethane
foam
materials
separated
separate
fines
fraction
14
inch
leaving
plastics-rich
thereafter
plastics
rich
sequentially
contacted
series
solvents
beginning
hexane
alcohol
remove
automotive
fluids
acetone
edc
thf
ketone
boiling
125degree
pvc
xylene
toluene
polypropylene
polyethylene
recovered
recycled
polyurethane foam
foam material
/521/209/528/