Method for the treatment of waste containing polyamide with the reprocessing of the depolymerisation residue
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United States of America Patent
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May 26, 2009
Grant Date -
Mar 10, 2005
app pub date -
Jul 23, 2004
filing date -
Jul 23, 2003
priority date (Note) -
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Abstract
The invention relates to a method for the treatment of waste containing polyamide comprising a) depolymerisation of the waste containing polyamide, whereby a caprolactam raw material (6) and a flow (3), comprising the secondary constituents and additives from the depolymerisation, are obtained, and b) leaching of the flow (3) at least once using an extracting agent.
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