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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:
; ; ;
Issue 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):
8513464
Application Number:
13/172,090
Assignee:
Georgia Tech Research Corporation (Atlanta, GA) ; Queen's University at Kingston (Kingston, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07B - GENERAL METHODS OF ORGANIC CHEMISTRY
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. Tue . "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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {8}
}

Works referenced in this record:

Brønsted Guanidine Acid−Base Ionic Liquids:  Novel Reaction Media for the Palladium-Catalyzed Heck Reaction
journal, February 2006


Amidines. Part 13. Influence of substitution at imino nitrogen atom on pK a values of N 1 N 1 -Dimethylacetamidines
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Spontaneous and Reversible Switch from Amphiphilic to Oil-Like Structures
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Switchable Surfactants
journal, August 2006


Green chemistry: Reversible nonpolar-to-polar solvent
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The Reaction of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) with Carbon Dioxide
journal, June 2005


A Rapid Gas Chromatographic Analysis of Diastereomeric Diamines
journal, March 1975


Activation of Carbon Dioxide by Bicyclic Amidines
journal, November 2004


Hydrogenation of Carbon Dioxide Catalyzed by Ruthenium Trimethylphosphine Complexes:  The Accelerating Effect of Certain Alcohols and Amines
journal, July 2002


Dimethylammonium-dimethylcarbamat (Dimcarb) als Lösungs- und Extraktionsmittel
journal, February 1989