Preparation of ultra-pure metal halides

Details Preparation of ultra-pure metal halides Preparation of ultra-pure metal halides

1990-03-27

1990-10-23

Russel, Jeffrey E.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

423 22, 423 24, 423 49, 423 54, 423 63, 423 72, 423100, 423139, 423489, C01B 900, C01B 908, C01G 100

Patent

active

049650556

ABSTRACT:
Metal halides are ultrapurified by selective complexation with a complexing gent 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.

REFERENCES:
patent: 3658466 (1972-04-01), Otsuka
patent: 3998924 (1976-12-01), Jones et al.

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