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Title: Ionic liquids for separation of olefin-paraffin mixtures

Abstract

The invention is directed to an ionic liquid comprising (i) a cationic portion containing a complex of a silver (I) ion and one or more neutral ligands selected from organoamides, organoamines, olefins, and organonitriles, and (ii) an anionic portion having the chemical formula ##STR00001## wherein m and n are independently 0 or an integer of 1 or above, and p is 0 or 1, provided that when p is 0, the group --N--SO.sub.2--(CF.sub.2).sub.nCF.sub.3 subtended by p is replaced with an oxide atom connected to the shown sulfur atom. The invention is also directed to a method for separating an olefin from an olefin-paraffin mixture by passing the mixture through a layer of the ionic liquid described above.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1144974
Patent Number(s):
8778219
Application Number:
13/969,717
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Dai, Sheng, Luo, Huimin, and Huang, Jing-Fang. Ionic liquids for separation of olefin-paraffin mixtures. United States: N. p., 2014. Web.
Dai, Sheng, Luo, Huimin, & Huang, Jing-Fang. Ionic liquids for separation of olefin-paraffin mixtures. United States.
Dai, Sheng, Luo, Huimin, and Huang, Jing-Fang. Tue . "Ionic liquids for separation of olefin-paraffin mixtures". United States. https://www.osti.gov/servlets/purl/1144974.
@article{osti_1144974,
title = {Ionic liquids for separation of olefin-paraffin mixtures},
author = {Dai, Sheng and Luo, Huimin and Huang, Jing-Fang},
abstractNote = {The invention is directed to an ionic liquid comprising (i) a cationic portion containing a complex of a silver (I) ion and one or more neutral ligands selected from organoamides, organoamines, olefins, and organonitriles, and (ii) an anionic portion having the chemical formula ##STR00001## wherein m and n are independently 0 or an integer of 1 or above, and p is 0 or 1, provided that when p is 0, the group --N--SO.sub.2--(CF.sub.2).sub.nCF.sub.3 subtended by p is replaced with an oxide atom connected to the shown sulfur atom. The invention is also directed to a method for separating an olefin from an olefin-paraffin mixture by passing the mixture through a layer of the ionic liquid described above.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

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Works referenced in this record:

Surface chemistry of room-temperature ionic liquids
journal, January 2007


Defining the challenges for C3H6/C3H8 separation using polymeric membranes
journal, January 2003


Novel perfluorinated ionomers and ionenes
journal, June 1995


Liquid-crystalline, polycatenar complexes of silver(I): dependence of the mesomorphism on the ligand and the anion
journal, January 1999


The use of ionic liquids as efficient extraction medium in the reactive separation of cycloolefins from cyclohexane
journal, November 2009


Advanced Liquid Membranes Based on Novel Ionic Liquids for Selective Separation of Olefin/Paraffin via Olefin-Facilitated Transport
journal, February 2008


Polynuclear Metal Complexes Obtained from the Task-Specific Ionic Liquid Betainium Bistriflimide
journal, April 2008


Ionic Liquids as Novel Lubricants and Additives for Diesel Engine Applications
journal, April 2009


A taste of the future
journal, June 2003


Perfectly Staggered and Twisted Difluoromethylene Groups in Perfluoroalkyl Chains: Structure of M[C4F9SO2NSO2C4F9](M= Na, K)
journal, July 1997