SOLUTE EXTRACTING APPARATUS
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United States of America Patent
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Issued Date -
Jan 7, 2016
app pub date -
Aug 23, 2013
filing date -
Aug 23, 2013
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Abstract
A solute trapping column including two trapping agent layers has a first branched pathway extending from an upper part of a main body part thereof, and a second branched pathway extending from between two trapping agent layers, and with its upper part a purification column is connected. By injection of solution of dioxins and supply of solvent into the purification column, dioxins are trapped by the trapping agent layers. An extraction solvent supplied from the lower end side of the solute trapping column while keeping both the purification column and the first branched pathway blocked extracts the dioxins trapped by the second trapping agent layer and flows into the second branched pathway. An extraction solvent supplied in a similar manner while keeping both the purification column and the second branched pathway blocked extracts the dioxins trapped by the first trapping agent layer and flows into the first branched pathway.
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