Development of an improved two-cycle process for recovering uranium from wet-process phosphoric acid

Journal Article · Sun Mar 01 00:00:00 EST 1987 · Ind. Eng. Chem. Res.; (United States)

DOI:https://doi.org/10.1021/ie00063a034· OSTI ID:6527092

Chen, H M; Chen, H J; Tsai, Y M; Lee, T W; Ting, G

An improved two-cycle separation process for the recovery of uranium from wet-process phosphoric acid by extraction with bis(2-ethylhexyl)phosphoric acid (D2EHPA) plus dibutyl butylphosphonate (DBBP) in kerosene has been developed and demonstrated successfully in bench-scale, continuous mixer-settler tests. The sulfuric acid and water scrubbing steps for the recycled extraction in the second cycle solve the problems of the contamination and dilution of the phosphoric acid by the ammonium ion and water and also avoid the formation of undesirable phosphatic precipitates during the subsequent extraction of uranium by recycled organic extractant.

• Research Organization: Institute of Nuclear Energy Research, Lung-Tan 32500
• OSTI ID: 6527092
• Journal Information: Ind. Eng. Chem. Res.; (United States), Vol. 26:3
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
PHOSPHORIC ACID
DILUTION
URANIUM
SOLVENT EXTRACTION
AMMONIUM COMPOUNDS
BENCH-SCALE EXPERIMENTS
KEROSENE
MIXER-SETTLERS
ORGANIC SOLVENTS
PHOSPHONATES
RECYCLING
SCRUBBING
SULFURIC ACID
TESTING
WATER
ACTINIDES
ELEMENTS
EXTRACTION
EXTRACTION APPARATUSES
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LIQUID FUELS
METALS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SOLVENTS
050400* - Nuclear Fuels- Feed Processing