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:
Oct. 30, 1979
Filed:
Feb. 09, 1978
Terence Donohue, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
Mixtures of metals are separated by forming salts of the metals which exhibit photoredox activity with an anion selected to provide insoluble salts at one oxidation state and soluble salts at another oxidation state, forming a solution of these salts with a solvent selected to permit a difference in solubility of salts dissolved at different oxidation salts and to be nonreactive with the nonsoluble salts, irradiating the solution with light at a wavelength which changes the oxidation state of the metal ion most susceptive to a change in oxidation state, and separating the insoluble salt formed thereby from the solution.