Safe removal of volatile, oxidizable compounds from particles, in particular polymer particles
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United States of America Patent
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Issued Date -
Sep 13, 2012
app pub date -
May 21, 2012
filing date -
Nov 22, 2002
priority date (Note) -
Abandoned
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Abstract
In a method of removing volatile oxidizable compounds from particles present in a container, a gas stream is continuously introduced into the container, the gas stream takes up the oxidizable compound from the particles in the container and a gas stream laden with the oxidizable compound is discharged from the container. In the method of the present invention, oxygen is added to the gas stream which has been discharged and the oxidizable compound present in the discharged gas stream is subsequently at least partly catalytically oxidized by means of the oxygen and this oxidized gas stream forms at least part of the gas stream introduced, so that the gas stream is circulated. This makes safe and inexpensive removal of the oxidizable compounds from the particles possible.
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