SEPARATION OF PROTACTINIUM FROM CONTAMINANTS
Abstract
The separation of protactinium by volatilization method is described. According to the invention, neutron irradiated finely divided thorium is reacted with aluminum trichloride or a mixture of aluminum trichloride and chlorine gas at a temperature of preferably between about 200 and 400 deg C. Following the chlorinating step the protactinium chloride along with aluminum chloride is selectively distilled from the mixture at a temperature of approximately 100 deg C. The protactinium chloride may be recovered from the mixture by treatment with sodium hydroxide, which converts the aluminum chloride to a soluble salt and forms insoluble protactinium hydroxide.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4236060
- Patent Number(s):
- 2893825
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- NSA Number:
- NSA-14-002482
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; ALUMINUM CHLORIDES; CHEMICAL REACTIONS; CHLORINE; CONVERSION; DISTILLATION; EVAPORATION; GASES; IMPURITIES; IRRADIATION; NEUTRONS; PROTACTINIUM; PROTACTINIUM CHLORIDES; PROTACTINIUM HYDROXIDES; RECOVERY; SEPARATION PROCESSES; SODIUM HYDROXIDES; TEMPERATURE; THORIUM
Citation Formats
Malm, J G, and Fried, S. SEPARATION OF PROTACTINIUM FROM CONTAMINANTS. United States: N. p., 1959.
Web.
Malm, J G, & Fried, S. SEPARATION OF PROTACTINIUM FROM CONTAMINANTS. United States.
Malm, J G, and Fried, S. Wed .
"SEPARATION OF PROTACTINIUM FROM CONTAMINANTS". United States.
@article{osti_4236060,
title = {SEPARATION OF PROTACTINIUM FROM CONTAMINANTS},
author = {Malm, J G and Fried, S},
abstractNote = {The separation of protactinium by volatilization method is described. According to the invention, neutron irradiated finely divided thorium is reacted with aluminum trichloride or a mixture of aluminum trichloride and chlorine gas at a temperature of preferably between about 200 and 400 deg C. Following the chlorinating step the protactinium chloride along with aluminum chloride is selectively distilled from the mixture at a temperature of approximately 100 deg C. The protactinium chloride may be recovered from the mixture by treatment with sodium hydroxide, which converts the aluminum chloride to a soluble salt and forms insoluble protactinium hydroxide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {7}
}
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