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Title: RECOVERY OF PROTACTINIUM FROM AQUEOUS SOLUTIONS

Abstract

The recovery of fluoride complexed protactinium from aqueous acidic solutions by solvent extraction is described. Generally the prccess of the invention com rises mixing an aqueous solution containing protactinium in a complexed form with an organic solvent which is specific for protactinium, such as diisopropyl carbinol, then decomposing the protactinium complex by adjusting the acidity of the aqueous solution to between 0-3 to 0-9 M in hydrogen ion concentration, and introducing a source of aluminum ions in sufficient quantity to establish a concentration of 0.5 to 1.2 M aluminum ion, whereupon decomposition of the protactinium fluoride complex takes place and the protactinium ion is taken up by the organic solvent phase.

Inventors:
Issue Date:
OSTI Identifier:
4220072
Patent Number(s):
2894806
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
NSA Number:
NSA-14-002488
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ACIDITY; ALCOHOLS; ALUMINUM; COMPLEXES; DECOMPOSITION; FLUORIDES; IONS; MIXING; ORGANIC COMPOUNDS; PROTACTINIUM; PROTACTINIUM COMPLEXES; RECOVERY; SOLUTIONS; SOLVENT EXTRACTION; SOLVENTS; WATER

Citation Formats

Elson, R E. RECOVERY OF PROTACTINIUM FROM AQUEOUS SOLUTIONS. United States: N. p., 1959. Web.
Elson, R E. RECOVERY OF PROTACTINIUM FROM AQUEOUS SOLUTIONS. United States.
Elson, R E. Tue . "RECOVERY OF PROTACTINIUM FROM AQUEOUS SOLUTIONS". United States.
@article{osti_4220072,
title = {RECOVERY OF PROTACTINIUM FROM AQUEOUS SOLUTIONS},
author = {Elson, R E},
abstractNote = {The recovery of fluoride complexed protactinium from aqueous acidic solutions by solvent extraction is described. Generally the prccess of the invention com rises mixing an aqueous solution containing protactinium in a complexed form with an organic solvent which is specific for protactinium, such as diisopropyl carbinol, then decomposing the protactinium complex by adjusting the acidity of the aqueous solution to between 0-3 to 0-9 M in hydrogen ion concentration, and introducing a source of aluminum ions in sufficient quantity to establish a concentration of 0.5 to 1.2 M aluminum ion, whereupon decomposition of the protactinium fluoride complex takes place and the protactinium ion is taken up by the organic solvent phase.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {7}
}