Patents by Inventor Vladimir L. Rudkovsky

Vladimir L. Rudkovsky 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 of preparing isoprene and isoamylenes
    Patent number: 4147736
    Abstract: The method of preparing isoprene and isoamylenes consists in that a gaseous mixture of isobutylene and methyl alcohol is brought in contact with a catalyst, namely aluminum oxide or tantalum pentoxide, at a temperature of 250 to 500.degree. C. It is recommendable that use should be made of aluminum oxide modified with an oxide of at least one of the following elements: molybdenum, tungsten, chromium, zirconium, titanium, vanadium, and cobalt. Moreover, it is possible to use aluminum oxide modified with a sulphate of at least one of the following elements: zirconium and chromium. A combination of both modifications is also possible. The yield of isoprene obtained by the proposed method is 16 to 20 mol. percent, with respect to the passed methyl alcohol, and the yield of isoamylenes is 25 to 30 mol. percent.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: April 3, 1979
    Inventors: Pavel Y. Gokhberg, Boris N. Gorbunov, Alexandr P. Khardin, Vladimir L. Rudkovsky, Valentin M. Belyaev, Anatoly I. Lukashov, Ljudmila V. Shpantseva, Vitaly V. Orlyansky