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Title: METHOD FOR THE RECOVERY AND PURIFICATION OF BERKELIUM

Abstract

A solvent extraction process is described for the separation of berkelium from a mixture of elements in the lanthanum and actinium series of the periodic table. In particular, the mixture of elements is dissolved in 1.0N nitric acid, and the resulting solution is extracted with n-tributyl phosphate containlng a stoichiometric excess of solid sodium bismuthate. The berkelium present in the nitric acid solution is oxidized to the IV oxidation state and is preferentially- extracted into the n-tributyl phosphate. The organic phase, containing berkelium in an oxidized state, is extracted with 0.1N hydrochloric acid solution containing a small quantity- of a reducing agent such as yvdrazine hydrochloride. The berkelium is reduced to the III oxidation state and is extracted into the aqueous phase. The berkelium is then recovered from the aqueous phase.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4176007
Patent Number(s):
2909405
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-007427
NSA Number:
NSA-14-007427
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ACTINIDES; BERKELIUM; BISMUTH COMPOUNDS; BUTYL PHOSPHATES; ELEMENTS; HYDRAZINE; HYDROCHLORIC ACID; IMPURITIES; NITRIC ACID; RARE EARTHS; RECOVERY; SEPARATION PROCESSES; SODIUM COMPOUNDS; SOLIDS; SOLUTIONS; SOLVENT EXTRACTION; WATER

Citation Formats

Hulet, E.K. METHOD FOR THE RECOVERY AND PURIFICATION OF BERKELIUM. United States: N. p., 1959. Web.
Hulet, E.K. METHOD FOR THE RECOVERY AND PURIFICATION OF BERKELIUM. United States.
Hulet, E.K. Tue . "METHOD FOR THE RECOVERY AND PURIFICATION OF BERKELIUM". United States.
@article{osti_4176007,
title = {METHOD FOR THE RECOVERY AND PURIFICATION OF BERKELIUM},
author = {Hulet, E.K.},
abstractNote = {A solvent extraction process is described for the separation of berkelium from a mixture of elements in the lanthanum and actinium series of the periodic table. In particular, the mixture of elements is dissolved in 1.0N nitric acid, and the resulting solution is extracted with n-tributyl phosphate containlng a stoichiometric excess of solid sodium bismuthate. The berkelium present in the nitric acid solution is oxidized to the IV oxidation state and is preferentially- extracted into the n-tributyl phosphate. The organic phase, containing berkelium in an oxidized state, is extracted with 0.1N hydrochloric acid solution containing a small quantity- of a reducing agent such as yvdrazine hydrochloride. The berkelium is reduced to the III oxidation state and is extracted into the aqueous phase. The berkelium is then recovered from the aqueous phase.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {10}
}