The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 1979
Filed:
Dec. 20, 1977
Khoren A Badaliants, Pikalevo Leningradskoi oblasti, SU;
Leonid M Butorin, Leningrad, SU;
Ioan V Davydov, Leningrad, SU;
Anna E Danilina, Moscow, SU;
Jury N Evseev, Alma-Ata, SU;
Alexandr V Eljutin, Moscow, SU;
Arkady I Zazubin, Alma Ata, SU;
Mikhail I Zaitsev, Moscow, SU;
Isaak A Zatulovsky, Pikalevo Leningradskoi oblasti, SU;
Raisa V Ivanova, Moscow, SU;
Ivan M Kostin, Pikalevo Leningradskoi oblasti, SU;
Vladimir V Krasavin, Achinsk Krasnoyarskogo kraya, SU;
Greogy I Lazarev, Volkhov Leningradskoi oblasti, SU;
Nikolai A Novikov, Moscow, SU;
Tatyana D Ostapenko, Alma-Ata, SU;
Gennady A Panasko, Pushkin Leningradskoi oblasti, SU;
Alexandr V Peredereev, Moscow, SU;
Avgusta I Samoilova, Volkhov Leningradskoi oblasti, SU;
Ljubov B Samaryanova, Moscow, SU;
Larisa I Sinelnikova, Leningrad, SU;
Anatolia I Simanova, Pikalevo Leningradskoi oblasti, SU;
Evgeny M Steshenko, Volkhov Leningradskoi oblasti, SU;
Nikolai I Eremin, Leningrad, SU;
Petr V Fedorin, Volkhov Leningradskoi oblasti, SU;
Leonid I Finkelshtein, Achinsk Krasnoyarskogo kraya, SU;
Elena L Shalavina, Alma Ata, SU;
Nikolai S Shmorgunenko, Leningrad, SU;
Other;
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. 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.