skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus for separating mixed plastics using flotation techniques

Abstract

A method and apparatus are provided for separating mixed plastics using flotation techniques including a first stage initial washing tank for washing of incoming plastics and providing a first separation process and at least one separation module. The first stage initial washing tank includes a perforated basket to hold heavy materials, such as metals, glass, and the like. Each separation module includes a separation tank, a feeding section for feeding of mixed stream into the separation tank; and a collecting section for collecting of the separated mixed plastics including floaters and sinkers from the separation tank. The separation tank has no moving parts. Each separation tank and the first stage initial washing tank is a standard off-the-shelf circular tank with a flat bottom. Washing and drying steps are eliminated between separation stages. Batch processing is replaced with generally continuous operation. An integrated vibrating screen and air classification system is provided.

Inventors:
; ;
Issue Date:
Research Org.:
UChicago Argonne LLC, Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531537
Patent Number(s):
7,255,233
Application Number:
10/866,963
Assignee:
UChicago Argonne, LLC (Chicago, IL)
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2004-06-14
Country of Publication:
United States
Language:
English

Citation Formats

Daniels, Edward J., Jody, Bassam J., and Pomykala, Jr., Joseph A. Method and apparatus for separating mixed plastics using flotation techniques. United States: N. p., 2007. Web.
Daniels, Edward J., Jody, Bassam J., & Pomykala, Jr., Joseph A. Method and apparatus for separating mixed plastics using flotation techniques. United States.
Daniels, Edward J., Jody, Bassam J., and Pomykala, Jr., Joseph A. Tue . "Method and apparatus for separating mixed plastics using flotation techniques". United States. https://www.osti.gov/servlets/purl/1531537.
@article{osti_1531537,
title = {Method and apparatus for separating mixed plastics using flotation techniques},
author = {Daniels, Edward J. and Jody, Bassam J. and Pomykala, Jr., Joseph A.},
abstractNote = {A method and apparatus are provided for separating mixed plastics using flotation techniques including a first stage initial washing tank for washing of incoming plastics and providing a first separation process and at least one separation module. The first stage initial washing tank includes a perforated basket to hold heavy materials, such as metals, glass, and the like. Each separation module includes a separation tank, a feeding section for feeding of mixed stream into the separation tank; and a collecting section for collecting of the separated mixed plastics including floaters and sinkers from the separation tank. The separation tank has no moving parts. Each separation tank and the first stage initial washing tank is a standard off-the-shelf circular tank with a flat bottom. Washing and drying steps are eliminated between separation stages. Batch processing is replaced with generally continuous operation. An integrated vibrating screen and air classification system is provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {8}
}

Patent:

Save / Share:

Works referenced in this record:

Flotation system
patent, October 1982


Material classifying apparatus
patent, November 1999


Dual deck dewatering screen
patent, March 2002


Siphon gravity classifier and clarifier
patent, October 1990


Method and apparatus for separating and classifying scrap plastic materials
patent, October 1993


Compost purification method and apparatus
patent, March 1999


Fluidized-bed drying and classifying apparatus
patent, October 2001


Debagger sorter machine
patent, August 1994


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


    Works referencing / citing this record:

    System and method for making carbon foam anodes
    patent, January 2014


    System and method for activating carbonaceous material
    patent, April 2014


    Process and apparatus for separating solid mixtures
    patent, June 2011


    Apparatus and method for separating materials
    patent, August 2010


    Apparatus for prewashing comminuted plastic parts
    patent, November 2016


    Method for sorting mixed plastic
    patent, February 2012