Patent number: 4152227
Abstract: 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.
Type:
Grant
Filed:
December 20, 1977
Date of Patent:
May 1, 1979
Inventors:
Khoren A. Badaliants, Leonid M. Butorin, Ioan V. Davydov, Anna E. Danilina, Jury N. Evseev, Alexandr V. Eljutin, Arkady I. Zazubin, Mikhail I. Zaitsev, Isaak A. Zatulovsky, Raisa V. Ivanova, Ivan M. Kostin, Vladimir V. Krasavin, Greogy I. Lazarev, Nikolai A. Novikov, Tatyana D. Ostapenko, Gennady A. Panasko, Alexandr V. Peredereev, Avgusta I. Samoilova, Ljubov B. Samaryanova, Larisa I. Sinelnikova, Anatolia I. Simanova, Evgeny M. Steshenko, Nikolai I. Eremin, Petr V. Fedorin, Leonid I. Finkelshtein, Elena L. Shalavina, Nikolai S. Shmorgunenko