Separation of zirconium from hafnium by solvent extraction

Details Separation of zirconium from hafnium by solvent extraction Separation of zirconium from hafnium by solvent extraction

1979-08-27

1980-11-04

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 73, 75101BE, C01G 2500, C01G 2700

Patent

active

042319943

ABSTRACT:
Separation of zirconium and hafnium by solvent extraction with a tertiary amine from sulfuric acid solution is improved by addition of water-soluble .alpha.-hydroxycarboxylic acid to the aqueous phase.

REFERENCES:
patent: 1906068 (1933-04-01), Jinemann
patent: 2741628 (1956-04-01), Plucknett
patent: 3658466 (1972-04-01), Otsuka
Sinegubova et al., "Atomic Energy Reviews," vol. 4, 1966, pp. 93-106.
Vinapor, "Russian Chemical Reviews," vol. 36, Jul. 1967, pp. 522-536.

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