MANGANESE DIOXIDE METHOD FOR PREPARATION OF PROTACTINIUM
Abstract
A method of obtaining U/sup 233/ is described. An aqueous solution of neutriln irradiated thoriunn is treated by forming tberein a precipitate of manganese dioxide which carries and thus separates the Pa/sup 233/ from the solution. The carrier precipitate so formed is then dissolved in an acidic solution containing a reducing agent sufficiently electronegative to reduce the tetravalent manganese to the divalent state. Further purification of the Pa/sup 233/ may be obtained by forming another manganese dioxide carrier precipitate and subsequently dissolving it. Ater a sufficient number of such cycles have brought the Pa/sup 233/ to the desired purity, the solution is aged, allowing the formation ot U/sup 233/ by radioaetive decay. A manganese dioxide precipitate is then formed in the U/sup 233/ containing solution. This precipitate carries down any remaining Pa/sup 233/ thus leaving the separated U/sup 233/solution, from whieh it may be easily recovered.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4304300
- Patent Number(s):
- 2847273
- 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
- NSA Number:
- NSA-13-001009
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
- Subject:
- PATENTS; ACIDITY; DECAY; IMPURITIES; IRRADIATION; ISOTOPE SEPARATION; MANGANESE; MANGANESE OXIDES; NEUTRON BEAMS; PRECIPITATION; PREPARATION; PROTACTINIUM 233; REDUCTION; SEPARATION PROCESSES; SOLUTIONS; THORIUM ISOTOPES; URANIUM 233
Citation Formats
Katzin, L I. MANGANESE DIOXIDE METHOD FOR PREPARATION OF PROTACTINIUM. United States: N. p., 1958.
Web.
Katzin, L I. MANGANESE DIOXIDE METHOD FOR PREPARATION OF PROTACTINIUM. United States.
Katzin, L I. Tue .
"MANGANESE DIOXIDE METHOD FOR PREPARATION OF PROTACTINIUM". United States.
@article{osti_4304300,
title = {MANGANESE DIOXIDE METHOD FOR PREPARATION OF PROTACTINIUM},
author = {Katzin, L I},
abstractNote = {A method of obtaining U/sup 233/ is described. An aqueous solution of neutriln irradiated thoriunn is treated by forming tberein a precipitate of manganese dioxide which carries and thus separates the Pa/sup 233/ from the solution. The carrier precipitate so formed is then dissolved in an acidic solution containing a reducing agent sufficiently electronegative to reduce the tetravalent manganese to the divalent state. Further purification of the Pa/sup 233/ may be obtained by forming another manganese dioxide carrier precipitate and subsequently dissolving it. Ater a sufficient number of such cycles have brought the Pa/sup 233/ to the desired purity, the solution is aged, allowing the formation ot U/sup 233/ by radioaetive decay. A manganese dioxide precipitate is then formed in the U/sup 233/ containing solution. This precipitate carries down any remaining Pa/sup 233/ thus leaving the separated U/sup 233/solution, from whieh it may be easily recovered.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 12 00:00:00 EDT 1958},
month = {Tue Aug 12 00:00:00 EDT 1958}
}