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Title: Process to wash polymers contaminated with polychlorinated biphenyls (PCBs)

Abstract

A process of washing plastics contaminated with polychlorinated biphenyls (PCBs) is provided to reduce the concentration of the PCBs. A two-step process includes a first washing step using a selected washing solution or solvent, such as, a non-flammable solvent, and followed by a second step using thermal desorption. The two-step process enables reducing the concentration of PCBs in polymers, such as recovered from shredder residue, for example, to as low as 0.253 PPM. One of the preferred solvents is Perchloroethylene.

Inventors:
; ; ;
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531587
Patent Number(s):
7525010
Application Number:
11/590,511
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29B - PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED
DOE Contract Number:  
AC02-06CH11357; W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2006-10-31
Country of Publication:
United States
Language:
English

Citation Formats

Jody, Bassam J., Pomykala, Jr., Joseph A., Daniels, Edward J., and Spangenberger, Jeffrey S. Process to wash polymers contaminated with polychlorinated biphenyls (PCBs). United States: N. p., 2009. Web.
Jody, Bassam J., Pomykala, Jr., Joseph A., Daniels, Edward J., & Spangenberger, Jeffrey S. Process to wash polymers contaminated with polychlorinated biphenyls (PCBs). United States.
Jody, Bassam J., Pomykala, Jr., Joseph A., Daniels, Edward J., and Spangenberger, Jeffrey S. Tue . "Process to wash polymers contaminated with polychlorinated biphenyls (PCBs)". United States. https://www.osti.gov/servlets/purl/1531587.
@article{osti_1531587,
title = {Process to wash polymers contaminated with polychlorinated biphenyls (PCBs)},
author = {Jody, Bassam J. and Pomykala, Jr., Joseph A. and Daniels, Edward J. and Spangenberger, Jeffrey S.},
abstractNote = {A process of washing plastics contaminated with polychlorinated biphenyls (PCBs) is provided to reduce the concentration of the PCBs. A two-step process includes a first washing step using a selected washing solution or solvent, such as, a non-flammable solvent, and followed by a second step using thermal desorption. The two-step process enables reducing the concentration of PCBs in polymers, such as recovered from shredder residue, for example, to as low as 0.253 PPM. One of the preferred solvents is Perchloroethylene.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {4}
}

Works referenced in this record:

Efficient continuous dryer for flexible polyurethane foam and cleaning apparatus
patent, March 1999


Process and apparatus for separating organic contaminants from contaminated inert materials
patent, September 1989


Process for the recovery and separation of plastics
patent, July 2003


Removal of toxic contaminants from porous material
patent, July 2002


Process to recycle shredder residue
patent, December 2001