The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2015
Filed:
Sep. 09, 2011
Lisa S. Baugh, Ringoes, NJ (US);
Pavel Kortunov, Flemington, NJ (US);
Michael Siskin, Westfield, NJ (US);
Lisa S. Baugh, Ringoes, NJ (US);
Pavel Kortunov, Flemington, NJ (US);
Michael Siskin, Westfield, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Ionic liquids containing a cation with a potentially nucleophilic carbon atom bearing a relatively acidic hydrogen atom bonded to a potentially nucleophilic carbon atom, typically in the conjugated —NC(H)N— structure or a —NC(H)S— structure of imidazolium, imidazolidinium or thiazolium salts, can be capable of acting as sorbents for COin cyclic separation processes. The ionic liquid may be used on its own, mixed with a solvent, preferably an aprotic, polar, non-aqueous solvent such as toluene, DMSO, NMP or sulfolane, or in conjunction with a non-nucleophilic nitrogenous base promoter compound having a pKof at least 10.0 such as a carboxamidine or a guanidine.