Separation process for the recovery of uranium from wet-process phosphoric acid

Patent · Tue Oct 01 00:00:00 EDT 1985

OSTI ID:5621044

Tsai, Y M; Chen, H M; Ting, G

A synergistic extractant combination consisting of di(2-ethylhexyl) phosphoric acid (D2EHPA) and dibutyl butyl phosphonate (DBBP) in kerosene is employed in a two-cycle separation process for the recovery of uranium from wet-process phosphoric acid. The addition of the sulfuric acid and water scrubbing steps for the recycled extractant provides no disadvantages with respect to the comtamination and dilution by the ammonium ion and water to the phosphoric acid and also no precipitation occurs in the second cycle extraction step. The advantages of this process are lower chemical cost, higher product purity and better phase separation in comparison with the previous process.

• Assignee: Institute of Nuclear Energy Research, Taiwan, Province of
• Patent Number(s): US 4544530
• Application Number: TRN: 88-000954
• OSTI ID: 5621044
• Resource Relation: Patent Priority Date: Priority date 25 Jul 1983, Taiwan; Other Information: PAT-APPL-516667
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
PHOSPHORIC ACID
SOLVENT EXTRACTION
URANIUM
SEPARATION PROCESSES
AMMONIUM COMPOUNDS
AQUEOUS SOLUTIONS
BUTYL RADICALS
CALCINATION
EFFICIENCY
FILTRATION
KEROSENE
PHOSPHONATES
SULFURIC ACID
ACTINIDES
ALKYL RADICALS
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ELEMENTS
EXTRACTION
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LIQUID FUELS
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PETROLEUM PRODUCTS
PYROLYSIS
RADICALS
SOLUTIONS
THERMOCHEMICAL PROCESSES
050400* - Nuclear Fuels- Feed Processing