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Title: Switchable solvents and methods of use thereof

Abstract

A solvent that reversibly converts from a nonionic liquid mixture to an ionic liquid upon contact with a selected trigger, e.g., contact with CO.sub.2, 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. Single component amine solvents that reversibly convert between ionic and non-ionic states are also described. Some embodiments require increased pressure to convert; others convert at 1 atmosphere.

Inventors:
; ; ;
Publication Date:
Research Org.:
Georgia Institute of Technology, Atlanta, GA (United States); Queen's University at Kingston, Kingston, ON (Canada)
Sponsoring Org.:
USDOE
OSTI Identifier:
1093248
Patent Number(s):
8,513,464
Application Number:
13/172,090
Assignee:
Georgia Tech Research Corporation (Atlanta, GA) ; Queen's University at Kingston (Kingston, CA)
DOE Contract Number:  
FG02-99ER14986
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jun 29
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Jessop, Philip G., Eckert, Charles A., Liotta, Charles L., and Heldebrant, David J. Switchable solvents and methods of use thereof. United States: N. p., 2013. Web.
Jessop, Philip G., Eckert, Charles A., Liotta, Charles L., & Heldebrant, David J. Switchable solvents and methods of use thereof. United States.
Jessop, Philip G., Eckert, Charles A., Liotta, Charles L., and Heldebrant, David J. 2013. "Switchable solvents and methods of use thereof". United States. https://www.osti.gov/servlets/purl/1093248.
@article{osti_1093248,
title = {Switchable solvents and methods of use thereof},
author = {Jessop, Philip G. and Eckert, Charles A. and Liotta, Charles L. and Heldebrant, David J.},
abstractNote = {A solvent that reversibly converts from a nonionic liquid mixture to an ionic liquid upon contact with a selected trigger, e.g., contact with CO.sub.2, 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. Single component amine solvents that reversibly convert between ionic and non-ionic states are also described. Some embodiments require increased pressure to convert; others convert at 1 atmosphere.},
doi = {},
url = {https://www.osti.gov/biblio/1093248}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 20 00:00:00 EDT 2013},
month = {Tue Aug 20 00:00:00 EDT 2013}
}

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Switchable solvents and methods of use thereof
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