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Title: SEPARATION OF URANIUM FROM ZIRCONIUM AND NIOBIUM BY SOLVENT EXTRACTION

Abstract

A process for separation of the uranium from zirconium and/or niobium values contained in 3 to 7M aqueous nitric acid solutions is described. This is accomplished by adding phosphoric acid anions to the nitric acid solution containing the uranium, zirconium, and/or niobium in an amount sufficient to make the solution 0.05 to 0.2M in phosphate ion and contacting the solution with an organic water-immiscible solvent such as MEK, whereby the uranyl values are taken up by the extract phase while the zirconium and niobium preferentially remain in the aqueous raffinate.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4323950
Patent Number(s):
2833616
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-12-014398
NSA Number:
NSA-12-014398
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ANIONS; NIOBIUM; NITRIC ACID; PATENT; PHOSPHATES; PHOSPHORIC ACID; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; SOLVENTS; URANIUM; URANYL COMPOUNDS; ZIRCONIUM

Citation Formats

Voiland, E.E. SEPARATION OF URANIUM FROM ZIRCONIUM AND NIOBIUM BY SOLVENT EXTRACTION. United States: N. p., 1958. Web.
Voiland, E.E. SEPARATION OF URANIUM FROM ZIRCONIUM AND NIOBIUM BY SOLVENT EXTRACTION. United States.
Voiland, E.E. Thu . "SEPARATION OF URANIUM FROM ZIRCONIUM AND NIOBIUM BY SOLVENT EXTRACTION". United States.
@article{osti_4323950,
title = {SEPARATION OF URANIUM FROM ZIRCONIUM AND NIOBIUM BY SOLVENT EXTRACTION},
author = {Voiland, E.E.},
abstractNote = {A process for separation of the uranium from zirconium and/or niobium values contained in 3 to 7M aqueous nitric acid solutions is described. This is accomplished by adding phosphoric acid anions to the nitric acid solution containing the uranium, zirconium, and/or niobium in an amount sufficient to make the solution 0.05 to 0.2M in phosphate ion and contacting the solution with an organic water-immiscible solvent such as MEK, whereby the uranyl values are taken up by the extract phase while the zirconium and niobium preferentially remain in the aqueous raffinate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {5}
}