METHOD OF PREPARING PROTACTINIUM VALUES

Patent · Tue May 19 04:00:00 EDT 1959

OSTI ID:4206695

Katzin, L I; Larson, R G; Thompson, R C; Van Winkle, Q

Separation and purification from initial acid leaches of pitchblende of Pa is described. This supernatant acid solution is treated with alkali metal carbonates to precipitate Pa. Silica is removed from the precipitate by hydroxide treatment. The Pa residue is dissolved in HNO/sub 3/ and Pa is concentrated by cyclic precipitations with MnO/sub 2/. The last solution is hydrolyzed to precipitate Pa. The Pa precipitate contains Ti and Zr which are removed by ion exchange. (T.R.H.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-022048
• Assignee: U.S. atomic Energy Commission
• Patent Number(s): US 2887355
• OSTI ID: 4206695
• Country of Publication: United States
• Language: English

Related Subjects

ACIDITY
ALKALI METALS
CARBONATES
CHEMICAL REACTIONS
CHEMICALS
CHEMISTRY
COMPOUNDS
DENSITY
ENRICHMENT
HYDROLYSIS
HYDROXIDES
IMPURITIES
ION EXCHANGE
LEACHING
MANGANESE OXIDES
NITRIC ACID
ORE PROCESSING
PATENT
PITCHBLENDE
PRECIPITATION
PREPARATION
PROTACTINIUM
PROTACTINIUM COMPOUNDS
REFINING
SEPARATION PROCESSES
SILICON OXIDES
SOLUTIONS
TITANIUM
URANINITES
ZIRCONIUM