Patents by Inventor Petr F. Minin

Petr F. Minin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for recovering gallium from alkali aluminate solutions resulting from treatment of aluminum-containing ores
    Patent number: 4135917
    Abstract: A process for recovering gallium from alkali aluminate solutions which consists in that the starting alkali aluminate solution is neutralized to a concentration of the caustic alkali of from 0.1 to 10 g/l, whereafter the neutralized liquor is evaporated to a concentration of the caustic alkali therein of from 30 to 150 g/l. Then the evaporated solution is corrected to obtain the ratio between the alkali metal oxide and alumina of above 2.0. The corrected solution is treated with a liquid alloy of gallium containing an element possessing an oxidizing potential exceeding that of gallium to give a concentrate containing more than 90% of gallium by mass, wherafter gallium of a higher purity grade is recovered from the resulting concentrate by the electrochemical method.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: January 23, 1979
    Inventors: Khoren A. Badaliants, Arkady A. Belsky, Leonid M. Butorin, Anna E. Danilina, Alexandr V. Eljutin, Isaak A. Zatulovsky, Arkady I. Zazubin, Raisa V. Ivanova, Evgeny A. Isakov, Ivan M. Kostin, Askar M. Kunaev, Teodor G. Milberger, Petr F. Minin, Nikolai A. Novikov, Tatyana D. Ostapenko, Alexandr V. Peredereev, Garegin A. Peikarov, Gennady A. Romanov, Anatolia T. Simanova, Natalya V. Tishevetskaya, Georgy P. Tkachenko, Elena L. Shalavina, Leonid I. Finkelshtein, Nikolai S. Shmorgunenko