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Title: POLONIUM SEPARATION PROCESS

Abstract

A liquid-liquid extraction process is presented for the recovery of polonium from lead and bismuth. According to the invention an acidic aqueous chloride phase containing the polonium, lead, and bismuth values is contacted with a tributyl phosphate ether phase. The polonium preferentially enters the organic phase which is then separated and washed with an aqueous hydrochloric solution to remove any lead or bismuth which may also have been extracted. The now highly purified polonium in the organic phase may be transferred to an aqueous solution by extraction with aqueous nitric acid.

Inventors:
Issue Date:
OSTI Identifier:
4220068
Patent Number(s):
2894817
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
NSA Number:
NSA-14-002494
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ACIDS; BISMUTH; BUTYL PHOSPHATES; CHLORIDES; CLEANING; ETHERS; HYDROCHLORIC ACID; LEAD; NITRIC ACID; POLONIUM; RECOVERY; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; WATER

Citation Formats

Karraker, D G. POLONIUM SEPARATION PROCESS. United States: N. p., 1959. Web.
Karraker, D G. POLONIUM SEPARATION PROCESS. United States.
Karraker, D G. Tue . "POLONIUM SEPARATION PROCESS". United States.
@article{osti_4220068,
title = {POLONIUM SEPARATION PROCESS},
author = {Karraker, D G},
abstractNote = {A liquid-liquid extraction process is presented for the recovery of polonium from lead and bismuth. According to the invention an acidic aqueous chloride phase containing the polonium, lead, and bismuth values is contacted with a tributyl phosphate ether phase. The polonium preferentially enters the organic phase which is then separated and washed with an aqueous hydrochloric solution to remove any lead or bismuth which may also have been extracted. The now highly purified polonium in the organic phase may be transferred to an aqueous solution by extraction with aqueous nitric acid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {7}
}