Title:
【発明の名称】エロ-ケ-キからのりん不純物除去法
Document Type and Number:
Japanese Patent JPS5925728
Kind Code:
B2
Abstract:
Phosphorus impurities are removed from yellowcake by dissolving it in hydrochloric or sulfuric acid to a U3O8 assay of at least 150 g/l at a pH of 2; precipitating uranium peroxide with hydrogen peroxide while keeping the pH between 2.2 and 2.6 and recovering the uranium peroxide from the phosphorus impurities remaining in solution.
Inventors:
RICHAADO AREKISANDAA BUROON
DONARUDO CHAARUZU UINKUREI
DONARUDO CHAARUZU UINKUREI
Application Number:
JP18555081A
Publication Date:
June 20, 1984
Filing Date:
November 20, 1981
Export Citation:
Assignee:
FMC CORP
International Classes:
C01B15/047; C01G43/01; C22B60/02; (IPC1-7): C01G43/01
Attorney, Agent or Firm:
Ryoji Kawase