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An engineering‐purpose preparation strategy for ammonium‐type ionic liquid with high purity
Author(s) -
Sun Xiaoqi,
Ji Yang,
Liu Yu,
Chen Ji,
Li Deqian
Publication year - 2010
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.12039
Subject(s) - ionic liquid , ammonium hydroxide , chemistry , ammonium , halide , solubility , decomposition , bifunctional , inorganic chemistry , hydroxide , chemical engineering , organic chemistry , catalysis , engineering
A new strategy for preparing ammonium‐type ionic liquid (IL) by acid/base neutralization reaction was proposed. The method contributed to preparing hydroxide‐based ammonium IL and resulting task specific ionic liquid (TSIL) with high purity using a low‐costly and environment‐friendly synthetic route. Halide contamination in the prepared ILs could be markedly decreased than those prepared by well‐established anion metathesis method. Moreover, some novel TSILs composed of cations and anions with big steric hindrances could be prepared by this method. Physicochemical properties of the bifunctional TSILs, i.e., density, water content, decomposition temperature, and munal solubility, were also studied in this article. © 2009 American Institute of Chemical Engineers AIChE J, 2009