Switchable solvents and methods of use thereof

Details Switchable solvents and methods of use thereof Switchable solvents and methods of use thereof

C - Chemistry, Metallurgy

09

K

C09K 3/00 (2006.01) B01D 17/00 (2006.01) B01F 1/00 (2006.01) C07B 63/00 (2006.01)

Patent

CA 2539418

A solvent that reversibly converts from a nonionic liquid mixture to an ionic liquid upon contact with a selected trigger, e.g., contact with CO2, is described. In preferred embodiments, the ionic solvent is readily converted back to the nonionic liquid mixture. The nonionic liquid mixture includes an amidine or guanidine or both, and water, alcohol, or a combination thereof. Some embodiments require increased pressure to convert, others convert at 1 atmosphere.

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