Superhigh purity ionic liquid

Details Superhigh purity ionic liquid Superhigh purity ionic liquid

2006-02-17

2009-10-20

O'Sullivan, Peter G (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07605271

ABSTRACT:
Provided is an ionic liquid, represented by the formula K+A−, having a very low content of impurities, especially a low content of halogen ions and/or a low content of alkali metal, wherein K+is a quaternary ammonium ion, for example an imidazolium ion. Also provided is a quaternarization process for making the ionic liquid in reacted with an acid ester such as a sulfate or phosphate.

REFERENCES:
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Feb. 1, 2004 Creation of Function and Application of Ionic Liquid Green Chemistry Series vol. 2 pp. 31-32.
1992 “Air and Water Stable 1-Ethy1-3-methylimidazolium Based Ionic Liquids” John S. Wilkes et al. Chemical Communication of Journal of Chemical Society Section 965 pp. 965-967.
Jan. 1, 1992 “Air and Water Stable 1-Ethy1-3-methylimidazolium Based Ionic Liquids” John S. Wilkes et al. J. Chem. Soc., Chem. Commun. pp. 965-967.

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