Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1990-11-30
1992-04-07
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
423112, 423127, 423600, 423DIG4, 75743, 210668, 210681, 210685, C25C 100
Patent
active
051025124
ABSTRACT:
A process for extracting and purifying the gallium contained in an industrial solution of sodium aluminate by fixing the gallium on a stationary phase constituted by porous polystyrene adsorbent resin which is impregnated with an extracting agent, optionally in the presence of a surface-active agent. After elution of the gallium in acid medium, the resultant gallium salt is purified and concentrated so as to be reduced directly to the state of high purity metallic gallium, by electrolysis.
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Aluminium Pechiney B.P.
Niebling John
Ryser David G.
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