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Title:
METHOD FOR DECOLORING IONIC LIQUID
Document Type and Number:
WIPO Patent Application WO/2017/150822
Kind Code:
A1
Abstract:
The present invention relates to a method for decoloring an ionic liquid and, more specifically, to a method capable of decoloring and reusing an ionic liquid, which is discolored through heat treatment during purification. The method for decoloring an ionic liquid, of the present invention, has an effect of enabling an ionic liquid, which is discolored through heat treatment during purification, to be decolored by a simple method. In addition, the method for decoloring an ionic liquid, of the present invention, has an effect of decoloring an ionic liquid, which is discolored and difficult to be used in the purification of an organic material, through a simple method so as to be reusable as a high-purity ionic liquid.

Inventors:
SHIN DONG-CHAN (KR)
KIM KI-HYUN (KR)
OH YONG-TAEG (KR)
Application Number:
PCT/KR2017/001616
Publication Date:
September 08, 2017
Filing Date:
February 14, 2017
Export Citation:
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Assignee:
INDUSTRY-ACADEMIC COOP FOUND CHOSUN UNIV (KR)
International Classes:
B01D17/00; B01J19/12; C02F1/32
Foreign References:
JPH0655768B21994-07-27
KR101542346B12015-08-10
KR100729500B12007-06-15
KR101551890B12015-09-11
Other References:
YUAN, L. ET AL.: "Radiation-induced darkening of ionic liquid [C4mim] [NTf2] and its decoloration", RADIATION PHYSICS AND CHEMISTRY, vol. 78, no. 12, 3 July 2009 (2009-07-03), pages 1133 - 1136, XP026586249
KIM, KI-HYUN: "Thermostability of Imidazolium Based Ionic Liquids According to Heat-Treatment 1-5 Condition", MASTER'S THESIS, 26 February 2016 (2016-02-26), Graduate School of Chosun University
Attorney, Agent or Firm:
IAM PATENT & LAW FIRM (KR)
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