PURIFICATION OF BERYLLIUM COMPOUNDS: A LITERATURE SURVEY

Technical Report · Thu Jun 16 04:00:00 EDT 1960

OSTI ID:4160790

Moore, R E

Industrial production of technical and nuclear grade beryllia, laboratory-scale preparations of purer oxide, and separate purification processes are discussed. Several American and a French process for making nuclear-grade beryllia (300 to 500 ppm impurities) are described. In the U.S.S.R. oxide with only 50 to 110 ppm impurities is made from commercially distilled basic acetate, and metal with 200 ppm impurities is produced by commercial distillation. Reryllia which is purer than that commercially available was made by laboratory- scale extraction and distillation of acetate, recrystallization of oxalate, and extraction of the perfluorobutyrate. Precipitations and crystallizations from solution and ion exchange may be useful preliminary steps in procedures aimed at preparing ultrapure beryllia. Liquid-liquid extraction and vacuum sublimation meet the requirements for final processes because of their theoretical capabilities and because closed systems using plastic equipment may be used to minimize contamination. Extraction methods discussed involve or ganic extractions of aqueous solutions of the basic acetate, acetylacetonate, and organic salts. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• DOE Contract Number: W-7405-ENG-26
• NSA Number: NSA-14-017843
• OSTI ID: 4160790
• Report Number(s): ORNL-2938
• Country of Publication: United States
• Language: English

Related Subjects

ACETATES
BERYLLIUM COMPOUNDS
BERYLLIUM OXIDES
CHEMISTRY
CRYSTALLIZATION
DISTILLATION
EVAPORATION
IMPURITIES
ION EXCHANGE
OXALATES
PRECIPITATION
PRODUCTION
SOLVENT EXTRACTION
VACUUM