RECOVERY OF THORIUM

Journal Article · Wed Apr 01 04:00:00 EST 1959 · Nuclear Eng.

OSTI ID:4275712

Audsley, A; Blundell, R W

Aqueous sulfuric acid solutions containing thorium, rare earths and phosphate cann be obtained by heating monazite with concentrated sulfuric acid, diluting the cooled reaction product with water, and separating the insoluble residue from the supernatant thoriumccntaining solution. From the latter solution the thorium is recovered by introducing ammonium into th solution, increasing its pH value to a maximum of 0.6. As a result the rare earth is deposited in the form of ammonium rare earth double sulfates. The suifates are then separated from the solution, and the acidity is reduced (by adding ammonia solution) in ordcr to precipitate thorium phosphate. ent status of high- temperature reactors, which might be used for process heatings is presenteds along with an outline of a feasibility study which is being carried on by the joint effort of AEC and Bureau of Mines for an indirect process cycle reactor. Unsolved problems are considered. (J.R.D.)

• Research Organization: U.K. Atomic Energy Authority
• NSA Number: NSA-13-011519
• OSTI ID: 4275712
• Journal Information: Nuclear Eng., Journal Name: Nuclear Eng. Vol. Vol: 4
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
AMMONIA
AMMONIUM COMPOUNDS
CHEMICAL REACTIONS
COOLANTS
COOLING
HEATING
MONAZITES
PHOSPHATES
PRECIPITATION
QUALITATIVE ANALYSIS
RARE EARTHS
RECOVERY
RESIDUES
SEPARATION PROCESSES
SOLUTIONS
SULFATES
SULFURIC ACID
TECHNOLOGY
THORIUM
THORIUM PHOSPHATES
WATER