Separation of metals at vibrating cathodes

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:7173216

Khramov, A P; Ivanovskii, L E; Batukhtin, V P

The authors studies of vibrating electrodes for the cathodic deposition of metals showed that diffusional difficulties in the discharge of ions can be lowered by vibration. This induced them to examine the effect of cathode vibration on the separation of Zr from Hf or of Nb from Ta which are present as impurities during refining in chloride fluoride melts. It was shown in this work that an efficient separation of metals during electrolysis first of all depends on the difference between their conventional standard potentials. A difference between the diffusion coefficients of the metal species to be separated has marked effects when the conventional standard potentials are similar or when the impurity has a more positive potential. Vibration of the cathode can have important effects.

• Research Organization: Institute of Electrochemistry, Sverdlovsk (USSR)
• OSTI ID: 7173216
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 23:4; ISSN SOECA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
CATHODES
CHLORIDES
CHLORINE COMPOUNDS
DEPOSITION
DIFFUSION
EFFICIENCY
ELECTRIC POTENTIAL
ELECTRODEPOSITION
ELECTRODES
ELECTROLYSIS
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HAFNIUM
HALIDES
HALOGEN COMPOUNDS
IMPURITIES
LYSIS
MATHEMATICAL MODELS
MECHANICAL VIBRATIONS
METALS
NIOBIUM
OPTIMIZATION
PURIFICATION
SEPARATION PROCESSES
SURFACE COATING
TANTALUM
TRANSITION ELEMENTS
ZIRCONIUM