Patents by Inventor Oleg V. Alexeev

Oleg V. Alexeev 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).

  • Method for the production of alumina
    Patent number: 4256709
    Abstract: An improved method for recovering aluminum values from alkaline aluminosilicate raw material by sintering a comminuted aqueous mixture of the alkaline aluminosilicate material, limestone and soda solution wherein the alumino-silicate material is first comminuted with the soda solution to form a mixture with a fraction of particles larger than 0.08 mm greater than 20 percent by weight, mixing limestone with the mixture and comminuting until the fraction of particles larger than 0.08 mm is between 2 and 15 percent by weight.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: March 17, 1981
    Inventors: Viktor M. Sizyakov, Leonid F. Bilenko, Nikolai S. Shmorgunenko, Leonid I. Finkelshtein, Georgy P. Tkachenko, Oleg V. Alexeev, Vitaly L. Aronzon, Pavel S. Vladimirov, Alexei I. Alexeev, Ivan M. Kostin