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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):
7255233
Application Number:
10/866,963
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03D - FLOTATION
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}
}

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