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. 27, 2001
Filed:
Sep. 23, 1999
Applicant:
Inventors:
Bruce A. Moyer, Oak Ridge, TN (US);
C. Kevin Chambliss, Macon, GA (US);
Peter V. Bonnesen, Knoxville, TN (US);
Tamara J. Keever, Oak Ridge, TN (US);
Assignee:
U.T. Battlle, LLC, Oak Ridge, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/100 ;
U.S. Cl.
CPC ...
B01D 1/100 ;
Abstract
Hydroxide values and associated alkali metal may be recovered from alkaline aqueous solutions using classes of fluorinated alcohols in a water immiscible solvent. The alcohols are characterized by fluorine substituents which are proximal to the acidic alcohol protons and are located to adjust the acidity of the extractant and the solubility of the extractant in the solvent. A method for stripping the extractant and solvent to regenerate the extractant and purified aqueous hydroxide solution is described.