Method of recovering uranium oxide from alkaline sodium uranyl carbonate solutions

US4436704A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Otmar Krennrich · Oberursel, DE
• Gottfried Brendel · Bad Homburg vor der Höhe, DE
• Hartmut Pietsch · Bad Homburg vor der Höhe, DE

Key dates

• Filing date: Jun 24, 1982
• Grant date: Mar 13, 1984
• Expiry date: Jun 24, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01G43/025
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of recovering uranium dioxide from a sodium uranyl carbonate solution obtained by the alkaline carbonate leaching of uranium ore in which a solution is reacted at a temperature above 130.degree. C. and at superatmospheric pressure with particular metallic iron. The precipitated UO.sub.2 is recovered from the solution.