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Method and apparatus for purifying organic material using ionic liquid

An ionic liquid and organic material technology, which is applied in the field of organic material purification and purification device using ionic liquid, can solve the problems of high price of OLED organic materials, and achieve the effects of simple structure, realization of manufacturing process and improvement of purification yield.

Inactive Publication Date: 2015-09-02
KOREA INST OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] However, since the raw materials of OLED organic materials are too expensive, there are practical obstacles such as cost to experiment with a large number of purification processes based on the ionic liquid process.

Method used

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  • Method and apparatus for purifying organic material using ionic liquid
  • Method and apparatus for purifying organic material using ionic liquid
  • Method and apparatus for purifying organic material using ionic liquid

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no. 1 Embodiment

[0077] image 3 It is a perspective view showing the structural relationship of a simple purification device for organic materials using ionic liquids according to the first embodiment of the present invention. Such as image 3 As shown, the simple organic material purification device 300 according to this embodiment generally includes: a sublimation means for sublimating the organic material raw material; a recrystallization means for recrystallizing the sublimation gas of the sublimated organic material in an ionic liquid; Analytical means for photographing and analyzing purified materials recrystallized in the liquid; and control means for controlling the operation of sublimation means, recrystallization means, and analysis means as a whole.

[0078] According to the ionic liquid of the present embodiment, 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (1-Butyl-3-methylimidazorium bis(trifluoromethylsulfonyl)imide) (BMIM TFSI), or 1-octyl-3-methylimidazoli...

no. 2 Embodiment

[0103] Figure 5 It is a conceptual diagram of the structural relationship of the organic material purification apparatus using ionic liquid according to the second embodiment of the present invention. Such as Figure 5 As shown, the organic material purification device 500 of this embodiment includes: a sublimation means in a vacuum atmosphere that heats and sublimates OLED organic material raw materials containing impurities; mixes the sublimation gas of the sublimated organic material into the ionic liquid, and recrystallizes in the ionic liquid The recrystallization means of the vacuum atmosphere; and the control means for controlling the operation of the sublimation means and the recrystallization means.

[0104] Here, the sublimation means includes: a crucible 510 containing an organic material raw material 511; a heating cavity 520 with a certain internal volume provided with the crucible 510; a vacuum pump 550 for pumping the inside of the heating cavity 520 into a va...

no. 3 Embodiment

[0124] Figure 7 It is a conceptual diagram of the structural relationship of the organic material purification apparatus using ionic liquid according to the third embodiment of the present invention. Such as Figure 7 As shown, according to the organic material purification device 500A of this embodiment, in order to enable smooth recovery of the purified material 543A, it is the same as that of the organic material of the second embodiment except that the form of the storage tank 540A and the configuration of the third heater 542A are partially changed. The material purification device 500 has the same configuration. Therefore, in the present embodiment, the same reference numerals are used for the same components, and their descriptions are omitted.

[0125] The lower part of the storage tank 540A of this embodiment is formed in the form of a funnel, and the lower part has a recovery bucket 544 for the purification material 543A alone. At this time, the recovery bucket 5...

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Abstract

An apparatus for a simplified purification of organic material by means of an ionic liquid according to the present invention comprises: a sublimation means for sublimating by heating raw organic material, for OLED, containing impurities; a recrystallization means for recrystallizing, in an ionic liquid, sublimated gas from the sublimated organic material; and a control means for controlling the operations of the sublimation means and the recrystallization means. The present invention has the benefit of allowing the purifiability of the organic material to be easily verified with a trace amount thereof as the recrystallization in the ionic liquid can be verified even when a trace amount of the organic material is sublimated.

Description

technical field [0001] The present invention relates to an organic material purification method and a purification device based on an ionic liquid process. More specifically, the present invention relates to a device for screening the optimal extraction combination between various ionic liquids (Ionic liquids) and purification target organic materials, even if using A small amount of OLED (Organic Light Emitting Diodes) organic materials can also be used to quickly confirm which ionic liquid is most suitable for the simple purification method and purification device of the organic material for recrystallization of the target organic material. [0002] In addition, the present invention also relates to an organic material purification method and a purification device that can purify OLED organic materials in large quantities by using the ionic liquid as a filter. Background technique [0003] OLED display devices have recently been attracting attention as next-generation disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D7/00B01D9/00H01L51/56C07B63/00
CPCB01D7/02B01D9/00C07B63/00H10K71/00H10K71/311H10K85/631H10K50/15B01D7/00C07C209/84
Inventor 金太源李宗澔朴在喆
Owner KOREA INST OF IND TECH
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