Patents by Inventor Andrei Leonidovich Tarasov

Andrei Leonidovich Tarasov 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 oxidation of benzene and/or toluene to phenol and/or cresols
    Patent number: 6388145
    Abstract: The invention relates to the field of organic synthesis, more specifically to a method for the production of phenol and cresol by the direct selective oxidation of benzene and toluene with nitrous oxide in the presence of a heterogeneous catalyst. Commercial high-silica zeolites are first calcined at a temperature of 500-950° C. sufficient to dehydroxylate it. It is then modified by the addition of modifying agents—zinc ions or zinc oxide—by applying a zinc compound to it. The catalyst is then activated in air or an inert gas at 300-850° C. The mixture of benzene or toluene with the nitrous oxide is brought into contact with the modified catalyst at 225 to 500° C.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: May 14, 2002
    Assignee: General Electric Company
    Inventors: Leonid Modestovich Kustov, Andrei Leonidovich Tarasov, Aleksandr Arunovich Tyrlov, Viktor Ignatyevich Bogdan
  • METHOD FOR THE OXIDATION OF BENZENE AND/OR TOLUENE TO PHENOL AND/OR CRESOLS
    Publication number: 20020042544
    Abstract: The invention relates to the field of organic synthesis, more specifically to a method for the production of phenol and cresol by the direct selective oxidation of benzene and toluene with nitrous oxide in the presence of a heterogeneous catalyst. Commercial high-silica zeolites are first calcined at a temperature of 500-950° C. sufficient to dehydroxylate it. It is then modified by the addition of modifying agents—zinc ions or zinc oxide—by applying a zinc compound to it. The catalyst is then activated in air or an inert gas at 300-850° C. The mixture of benzene or toluene with the nitrous oxide is brought into contact with the modified catalyst at 225 to 500° C.
    Type: Application
    Filed: March 23, 2000
    Publication date: April 11, 2002
    Inventors: Leonid Modestovich Kustov, Andrei Leonidovich Tarasov, Aleksandr Arunovich Tyrlov, Viktor Ignatyevich Bogdan