SEPARATION OF AMERICIUM FROM PROMETHIUM
Abstract
Promethium-147 is separated from americium in acidic aqueous solution by adding fluosilicic acid to the solution, heating the solution to form a promethium precipitate and separating the precipitate from solution. The precipitate is then re-dissolved by ihe addition of boric acid and nitric acid, and re-precipitated by the addition of fluosilicic acid. This procedure is repeated six or more times to obtain a relatively americium-free promeihium precipitate. Americium may be separately recovered from the supernatant liquids. This process is applicable to the recovery of promethium from fission-product solutions which have been allowed to decay for a period of two to four years.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4230894
- Patent Number(s):
- 2893827
- 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
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- NSA Number:
- NSA-14-002483
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; ACIDS; AMERICIUM; BORIC ACID; BORON OXIDES; FISSION PRODUCTS; HEATING; NITRIC ACID; PRECIPITATION; PROMETHIUM 147; RECOVERY; SEPARATION PROCESSES; SILICON FLUORIDES; SOLUTIONS
Citation Formats
Pressly, R E. SEPARATION OF AMERICIUM FROM PROMETHIUM. United States: N. p., 1959.
Web.
Pressly, R E. SEPARATION OF AMERICIUM FROM PROMETHIUM. United States.
Pressly, R E. Wed .
"SEPARATION OF AMERICIUM FROM PROMETHIUM". United States.
@article{osti_4230894,
title = {SEPARATION OF AMERICIUM FROM PROMETHIUM},
author = {Pressly, R E},
abstractNote = {Promethium-147 is separated from americium in acidic aqueous solution by adding fluosilicic acid to the solution, heating the solution to form a promethium precipitate and separating the precipitate from solution. The precipitate is then re-dissolved by ihe addition of boric acid and nitric acid, and re-precipitated by the addition of fluosilicic acid. This procedure is repeated six or more times to obtain a relatively americium-free promeihium precipitate. Americium may be separately recovered from the supernatant liquids. This process is applicable to the recovery of promethium from fission-product solutions which have been allowed to decay for a period of two to four years.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {7}
}
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