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Title: Solvent and Process for Recovery of Hydroxide from Aqueous Mixtures

Patent ·
OSTI ID:837667

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.

Research Organization:
Oak Ridge National Lab., Oak Ridge, TN; U.T. Battelle, LLC (US)
Sponsoring Organization:
USDOE Office of Environmental Management (EM) (US)
Assignee:
U.S. Patent and Trademark Office DOEEMSP
Patent Number(s):
6,322,702
Application Number:
R&D Project: EMSP 65339; 09/404,104; TRN: US200506%%327
OSTI ID:
837667
Resource Relation:
Other Information: PBD: 13 Sep 1999
Country of Publication:
United States
Language:
English