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Ioan V Davydov

Ivan M Kostin

Isaak A Zatulovsky

Nikolai S Shmorgunenko

Nikolai Ivanovich Eremin

Alexandr V Eljutin

Raisa V Ivanova

Khoren A Badaliants

Nikolai A Novikov

Leonid I Finkelshtein

Alexandr V Peredereev

Arkady I Zazubin

Mikhail Ivanovich Zaitsev

Leonid M Butorin

Elena L Shalavina

Tatyana D Ostapenko

Anna E Danilina

Gennady A Panasko

Ljubov B Samaryanova

Avgusta I Samoilova

Larisa I Sinelnikova

Evgeny M Steshenko

Greogy I Lazarev

Petr V Fedorin

Vladimir V Krasavin

Anatolia I Simanova

Jury N Evseev

The starting aluminate-alkaline solutions are subjected to two-stage carbonization with stirring and the production of hydrate of aluminum oxide, a gallium-containing precipitate, and solutions containing caustic and bicarbonate alkali, thereafter the produced gallium-containing precipitate is mixed with a solution containing caustic alkali to achieve a content of gallium in the solution of 0.05 to 1 g/l, the precipitate thus formed is separated and the solution enriched with gallium is mixed with a solution containing bicarbonate alkali, the produced mixture is evaporated to separate compounds of alkali metals, and the evaporated solution is carbonized to produce a solution containing alkali metal salts, and a gallium concentrate from which gallium is produced by transforming it into alkaline solution and subsequently reducing electrochemically. The proposed method makes it possible to extract gallium at a comparatively low cost from solutions in the processing, for example, of nephelines containing it in amounts which do not exceed 0.02 to 0.03 g/l. Owing to the proposed method it has become possible in the processes of concentration of gallium to produce a number of valuable components such as alkali metal salts contained in the starting ore.

Method for extraction of gallium from aluminate-alkaline solutions in

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Saint-Petersburg, Russia

Ioan V Davydov