FIELD: metallurgy.
SUBSTANCE: recovery technique of gallium from alkaline solutions by means of cementation by aluminum gallium with release of hydrogen includes periodical feed of gallium by feeding of granulated aluminium. Process is implemented at renovation of air-gas mixture above surface of solution by means of ventilation with constant air intake and measurement of hydrogen concentration in air-gas mixture above surface of solution. Feeding of aluminium in gallium is implemented at achieving of hydrogen concentration less than prescribed value.
EFFECT: improving of controllability and reliability growth of the control for cementation process.
2 dwg, 1 ex
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