FLY ASH REMOVING PROCESS OF SCRAP TIRE
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Apr 23, 2015
filing date -
Apr 25, 2014
priority date (Note) -
Abandoned
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Abstract
A fly ash removing process of scrap tires is provided, which includes the steps of: performing a pre-treating procedure, comprising grinding a pyrolyzed carbon black and removing a granular metallic material from the pyrolyzed carbon black by a method of magnetic separation; performing a first fly ash removing procedure, comprising performing an acid-wash to the ground carbon black by an acidic solution and a chelating agent; performing a first washing procedure, comprising washing the carbon black in which the acid-wash is performed to neutralize the residual acidic solution and the chelating agent by water, and drying the washed carbon black to obtain the carbon black in which the fly ash is removed. The removing process is able to effectively reduce the contents of the fly ash contained in the pyrolyzed carbon black.
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