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:
Sep. 01, 2015
Filed:
Oct. 29, 2014
Daniel Campos, Atglen, PA (US);
Andrew Edward Feiring, Wilmington, DE (US);
Sudipto Majumdar, Newark, DE (US);
Stuart Nemser, Wilmington, DE (US);
Daniel Campos, Atglen, PA (US);
Andrew Edward Feiring, Wilmington, DE (US);
Sudipto Majumdar, Newark, DE (US);
Stuart Nemser, Wilmington, DE (US);
CMS TECHNOLOGIES HOLDINGS, INC., Newport, DE (US);
Abstract
A membrane separation process using a highly fluorinated polymer membrane that selectively permeates water of an aqueous ionic liquid solution to provide dry ionic liquid. Preferably the polymer is a polymer that includes polymerized perfluoro-2,2-dimethyl-1,3-dioxole (PDD). The process is also capable of removing small molecular compounds such as organic solvents that can be present in the solution. This membrane separation process is suitable for drying the aqueous ionic liquid byproduct from precipitating solutions of biomass dissolved in ionic liquid, and is thus instrumental to providing usable lignocellulosic products for energy consumption and other industrial uses in an environmentally benign manner.