ANION EXCHANGE METHOD FOR SEPARATION OF METAL VALUES

Patent · Tue Feb 10 04:00:00 EST 1959

OSTI ID:4261330

Hyde, E K; Raby, B A

A method is described for selectively separating radium, bismuth, poloniums and lead values from a metallic mixture of thc same. The mixture is dissolved in aqueous hydrochloric acid and the acidity is adjusted to between 1 to 2M in hydrochloric acid to form the anionic polychloro complexes of polonium and bismuth. The solution is contacted with a first anion exchange resin such as strong base quaternary ammonia type to selectively absorb the polonium and bismuth leaving the radium and lead in the effluent. The effluent, after treatment in hydrochloric acid to increase the hydrochloric acid concentration to 6M is contacted with a second anion exchange iesin of the same type as the above to selectively adsorb the lead leaving the radium in the effluent. Radium is separately recovered from the effluent from the second exchange column. Lead is stripped from the loaded resin of the second column by treatment with 3M hydrochloric acid solution. The loaded resin of the first column is washed with 8M hydrochloric acid solution to recover bismuth and then treated with strong nitric acid solution to recover polonium.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-013323
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 2873170
• OSTI ID: 4261330
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
ADSORPTION
AMMONIA
ANIONS
BISMUTH
BISMUTH COMPLEXES
CHEMISTRY
EXTRACTION COLUMNS
HYDROCHLORIC ACID
ION EXCHANGE MATERIALS
IONIZATION
LEAD
MIXING
NITRIC ACID
OPERATION
ORGANIC CHLORINE COMPOUNDS
POLONIUM
POLONIUM COMPLEXES
QUANTITY RATIO
RADIUM
RESINS
SEPARATION PROCESSES
SOLUTIONS
STRIPPING