LARGE SCALE METHOD FOR THE PRODUCTION AND PURIFICATION OF CURIUM
Abstract
A large-scale process for production and purification of Cm/sup 242/ is described. Aluminum slugs containing Am are irradiated and declad in a NaOH-- NaHO/sub 3/ solution at 85 to 100 deg C. The resulting slurry filtered and washed with NaOH, NH/sub 4/OH, and H/sub 2/O. Recovery of Cm from filtrate and washings is effected by an Fe(OH)/sub 3/ precipitation. The precipitates are then combined and dissolved ln HCl and refractory oxides centrifuged out. These oxides are then fused with Na/sub 2/CO/sub 3/ and dissolved in HCl. The solution is evaporated and LiCl solution added. The Cm, rare earths, and anionic impurities are adsorbed on a strong-base anfon exchange resin. Impurities are eluted with LiCl--HCl solution, rare earths and Cm are eluted by HCl. Other ion exchange steps further purify the Cm. The Cm is then precipitated as fluoride and used in this form or further purified and processed. (T.R.H.)
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4232573
- Patent Number(s):
- 2887358
- 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
- NSA Number:
- NSA-13-022143
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; ADSORPTION; ALUMINUM; AMERICIUM 241; AMMONIA; ANIONS; CARRIERS; CENTRIFUGATION; CURIUM 242; CURIUM FLUORIDES; EVAPORATION; FABRICATION; FILTERS; HIGH TEMPERATURE; HYDROCHLORIC ACID; IMPURITIES; ION EXCHANGE; IRON HYDROXIDES; LITHIUM CHLORIDES; MELTING; MIXING; OXIDES; PATENT; PRECIPITATION; RARE EARTHS; RECOVERY; REFINING; REPROCESSING; RODS; SEPARATION PROCESSES; SLURRIES; SODIUM CARBONATES; SODIUM HYDROXIDES; SODIUM NITRATES; SOLUBILITY; SOLUTIONS; TEMPERATURE; WATER
Citation Formats
Higgins, G H, and Crane, W W.T.. LARGE SCALE METHOD FOR THE PRODUCTION AND PURIFICATION OF CURIUM. United States: N. p., 1959.
Web.
Higgins, G H, & Crane, W W.T.. LARGE SCALE METHOD FOR THE PRODUCTION AND PURIFICATION OF CURIUM. United States.
Higgins, G H, and Crane, W W.T.. Tue .
"LARGE SCALE METHOD FOR THE PRODUCTION AND PURIFICATION OF CURIUM". United States.
@article{osti_4232573,
title = {LARGE SCALE METHOD FOR THE PRODUCTION AND PURIFICATION OF CURIUM},
author = {Higgins, G H and Crane, W W.T.},
abstractNote = {A large-scale process for production and purification of Cm/sup 242/ is described. Aluminum slugs containing Am are irradiated and declad in a NaOH-- NaHO/sub 3/ solution at 85 to 100 deg C. The resulting slurry filtered and washed with NaOH, NH/sub 4/OH, and H/sub 2/O. Recovery of Cm from filtrate and washings is effected by an Fe(OH)/sub 3/ precipitation. The precipitates are then combined and dissolved ln HCl and refractory oxides centrifuged out. These oxides are then fused with Na/sub 2/CO/sub 3/ and dissolved in HCl. The solution is evaporated and LiCl solution added. The Cm, rare earths, and anionic impurities are adsorbed on a strong-base anfon exchange resin. Impurities are eluted with LiCl--HCl solution, rare earths and Cm are eluted by HCl. Other ion exchange steps further purify the Cm. The Cm is then precipitated as fluoride and used in this form or further purified and processed. (T.R.H.)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {5}
}