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Title: Phosphonium-based ionic liquids and their use in the capture of polluting gases

Abstract

An ionic liquid composition having the following chemical structural formula: ##STR00001## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from hydrocarbon groups containing at least 1 and up to 20 carbon atoms, and X.sup.- is a cyclic anion that possesses a negatively-charged group reactive with a gaseous electrophilic species, particularly carbon dioxide or sulfur dioxide. Methods for capturing a gaseous electrophilic species, such as CO.sub.2 or SO.sub.2, by contacting the gaseous electrophilic species with an ionic liquid according to Formula (1) are also described.

Inventors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1361551
Patent Number(s):
9,670,237
Application Number:
13/240,275
Assignee:
UT-BATTELLE, LLC ORNL
DOE Contract Number:
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Sep 22
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Dai, Sheng, Wang, Congmin, Luo, Huimin, and Jiang, De-en. Phosphonium-based ionic liquids and their use in the capture of polluting gases. United States: N. p., 2017. Web.
Dai, Sheng, Wang, Congmin, Luo, Huimin, & Jiang, De-en. Phosphonium-based ionic liquids and their use in the capture of polluting gases. United States.
Dai, Sheng, Wang, Congmin, Luo, Huimin, and Jiang, De-en. Tue . "Phosphonium-based ionic liquids and their use in the capture of polluting gases". United States. doi:. https://www.osti.gov/servlets/purl/1361551.
@article{osti_1361551,
title = {Phosphonium-based ionic liquids and their use in the capture of polluting gases},
author = {Dai, Sheng and Wang, Congmin and Luo, Huimin and Jiang, De-en},
abstractNote = {An ionic liquid composition having the following chemical structural formula: ##STR00001## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from hydrocarbon groups containing at least 1 and up to 20 carbon atoms, and X.sup.- is a cyclic anion that possesses a negatively-charged group reactive with a gaseous electrophilic species, particularly carbon dioxide or sulfur dioxide. Methods for capturing a gaseous electrophilic species, such as CO.sub.2 or SO.sub.2, by contacting the gaseous electrophilic species with an ionic liquid according to Formula (1) are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 06 00:00:00 EDT 2017},
month = {Tue Jun 06 00:00:00 EDT 2017}
}

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