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:
Mar. 03, 2015
Filed:
Nov. 07, 2012
Troy Allan Bednarski, Chandler, AZ (US);
Violina Antoneta Cocalia, Norwalk, CT (US);
Matthew Dean Soderstrom, Gilbert, AZ (US);
Eduardo Alberto Kamenetzky, Stamfod, CT (US);
Andrew Michael Cameron, Phoenix, AZ (US);
Douglas Harris, Louisville, CO (US);
Troy Allan Bednarski, Chandler, AZ (US);
Violina Antoneta Cocalia, Norwalk, CT (US);
Matthew Dean Soderstrom, Gilbert, AZ (US);
Eduardo Alberto Kamenetzky, Stamfod, CT (US);
Andrew Michael Cameron, Phoenix, AZ (US);
Douglas Harris, Louisville, CO (US);
Cytec Technology Corp., Wilmington, DE (US);
Abstract
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracting the molybdenum and/or other value metal from the aqueous solution by contacting it with an organic phase solution containing a phosphinic acid, stripping the molybdenum and/or other value metal from the organic phase solution by contacting it with an aqueous phase strip solution containing an inorganic compound and having a ≦1.0 M concentration of free ammonia, and recovering the molybdenum and/or other value metal by separating it from the aqueous phase strip solution. When the molybdenum and/or other value metal are present only in low concentration, the processes can include an organic phase recycle step and/or an aqueous phase strip recycle step in order to concentrate the metal prior to recover.