METHOD OF PREPARING PROTACTINIUM VALUES
Abstract
Separation and purification from initial acid leaches of pitchblende of Pa is described. This supernatant acid solution is treated with alkali metal carbonates to precipitate Pa. Silica is removed from the precipitate by hydroxide treatment. The Pa residue is dissolved in HNO/sub 3/ and Pa is concentrated by cyclic precipitations with MnO/sub 2/. The last solution is hydrolyzed to precipitate Pa. The Pa precipitate contains Ti and Zr which are removed by ion exchange. (T.R.H.)
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4206695
- Patent Number(s):
- 2887355
- Assignee:
- U.S. atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- NSA Number:
- NSA-13-022048
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; ACIDITY; ALKALI METALS; CARBONATES; CHEMICAL REACTIONS; CHEMICALS; COMPOUNDS; DENSITY; ENRICHMENT; HYDROLYSIS; HYDROXIDES; IMPURITIES; ION EXCHANGE; LEACHING; MANGANESE OXIDES; NITRIC ACID; ORE PROCESSING; PATENT; PITCHBLENDE; PRECIPITATION; PREPARATION; PROTACTINIUM; PROTACTINIUM COMPOUNDS; REFINING; SEPARATION PROCESSES; SILICON OXIDES; SOLUTIONS; TITANIUM; URANINITES; ZIRCONIUM
Citation Formats
Katzin, L I, Larson, R G, Thompson, R C, and Van Winkle, Q. METHOD OF PREPARING PROTACTINIUM VALUES. United States: N. p., 1959.
Web.
Katzin, L I, Larson, R G, Thompson, R C, & Van Winkle, Q. METHOD OF PREPARING PROTACTINIUM VALUES. United States.
Katzin, L I, Larson, R G, Thompson, R C, and Van Winkle, Q. Tue .
"METHOD OF PREPARING PROTACTINIUM VALUES". United States.
@article{osti_4206695,
title = {METHOD OF PREPARING PROTACTINIUM VALUES},
author = {Katzin, L I and Larson, R G and Thompson, R C and Van Winkle, Q},
abstractNote = {Separation and purification from initial acid leaches of pitchblende of Pa is described. This supernatant acid solution is treated with alkali metal carbonates to precipitate Pa. Silica is removed from the precipitate by hydroxide treatment. The Pa residue is dissolved in HNO/sub 3/ and Pa is concentrated by cyclic precipitations with MnO/sub 2/. The last solution is hydrolyzed to precipitate Pa. The Pa precipitate contains Ti and Zr which are removed by ion exchange. (T.R.H.)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {5}
}
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