METHOD AND APPARATUS FOR PURIFYING ORGANIC MATERIAL USING IONIC LIQUID
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United States of America Patent
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Issued Date -
Jul 7, 2016
app pub date -
Dec 17, 2013
filing date -
Dec 17, 2013
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Abandoned
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Abstract
Disclosed is a simplified apparatus for purifying an organic material using an ionic liquid, including a sublimation unit for sublimating a raw organic material containing impurities for OLEDs by heating; a recrystallization unit for recrystallizing the sublimated gas of the organic material in the ionic liquid; and a control unit for controlling the operation of the sublimation unit and the recrystallization unit. Even when a very small amount of organic material is sublimated, the recrystallization thereof in the ionic liquid can be verified, thus easily checking the purification potential of the organic material using only a very small amount of organic material.
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