1. Use of ionic liquids as ‘green’ solvents for extractions
2. Roettger, D.; Nierlich, F.; Krissmann, J.; Wasserscheid, P.; Keim, W.,Method for separation of substances by extraction or by washing them with ionic liquids. U.S. Patent No. 7,304,200, 2007.
3. Smith, R. S.; Herrera, P. S.; Reynolds, J. S.; Krzywicki, A.Use of ionic liquids to separate diolefins. U.S. Patent App. 10/308,307, 2002.
4. Analytical applications of room-temperature ionic liquids: A review of recent efforts