Published October 1, 1985 | Version v1
Patent Metadata-only

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

Creators

Description

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

Availability note (English)

U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.

Additional details

Publishing Information

Imprint Pagination
vp.
IPC:
Int. Cl. C01G 43/00.
IPC
Int. Cl. C01G 43/00.
Patent number
US patent document 4,544,530/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19021621
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
AMMONIUM COMPOUNDS; AQUEOUS SOLUTIONS; BUTYL RADICALS; CALCINATION; EFFICIENCY; FILTRATION; KEROSENE; PHOSPHONATES; PHOSPHORIC ACID; SEPARATION PROCESSES; SOLVENT EXTRACTION; SULFURIC ACID; URANIUM
Descriptors DEC
ACTINIDES; ALKYL RADICALS; CHEMICAL REACTIONS; DECOMPOSITION; DISPERSIONS; ELEMENTS; ENERGY SOURCES; FOSSIL FUELS; FUELS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PETROLEUM PRODUCTS; PHOSPHORUS COMPOUNDS; PYROLYSIS; RADICALS; SOLUTIONS; SULFUR COMPOUNDS

Optional Information

Notes
PAT-APPL-516667.