Accession Number:

ADD014529

Title:

Preparation of Ultra-Pure Metal Halides.

Descriptive Note:

Patent Application, Filed 27 Mar 90,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Nordquist, Paul E.
• Singer, Arnold H.

Report Date:

1990-03-27

Pagination or Media Count:

15.0

Abstract:

Metal halides are ultrapurified by selective complexation with a complexing agent to form a charged first complex. A ligand forms an oppositely charged second complex with metallic impurities in the metal halide to be purified. A solution containing these complexes is then passed through an ion exchange column and the desired purified metal halide collected. The present method is particularly useful in the production of ultrapure metal halides, such as zirconium fluorinate, for metallic glasses. Patent applications. kt

Descriptors:

• *HALIDES
• *METAL COMPOUNDS
• *PURIFICATION
• ALLOYS
• AMORPHOUS MATERIALS
• GLASS
• IMPURITIES
• ION EXCHANGE
• METALS
• PATENT APPLICATIONS
• PRODUCTION
• ZIRCONIUM

Subject Categories:

• Industrial Chemistry and Chemical Processing
• Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE