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Title: 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:
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 = {1958},
month = {8}
}