Methods, systems, and devices for enrichment of plastic materials derived from electronics shredder residue
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United States of America Patent
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Dec 2, 2014
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app pub date -
Jun 29, 2012
filing date -
Jul 5, 2011
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Abstract
A method for separating a mixture of solid materials can includes a sorting step based on differences in X-Ray transmission of different materials and a density sorting step at an elevated density. The mixture of solid materials can be a plastic-rich mixture recovered from waste electrical and electronic equipment. The mixture of solid materials can include plastics that contain brominated flame retardants. In some cases, a XRT or DEXRT sorter is used to remove the majority of plastics that contain brominated flame retardants from the mixture.
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