Patents by Inventor Alexandr J. Dyakonov

Alexandr J. Dyakonov 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).

  • Catalyst and process for dehydrogenation of oxygen-containing derivatives of the cyclohexane series into corresponding cyclic ketones and/or phenols
    Patent number: 4417076
    Abstract: A catalyst for dehydrogenation of oxygen-containing derivatives of the cyclohexane series of the general formula: ##STR1## wherein R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl;R.sub.2 and R.sub.3 are radicals having the same or different meanings: --H, --OH, .dbd.O, provided that R.sub.2 and R.sub.3 are not simultaneously hydrogen and R.sub.1, R.sub.2 and R.sub.3 are attached to different carbon atoms of the cycle,into corresponding cyclic ketones and/or phenols containing the following components, percent by weight:______________________________________ nickel 15 to 55 promotor-germanium and/or lead 0.2 to 8.0 inert carrier 84.8 to 37.0 ______________________________________and an atomic ratio of nickel to the promotor is within the range of from 15:1 to 410:1 respectively. The catalyst can additionally contain a salt of an alkali metal and a mineral acid in an amount of from 0.01 to 1.0% by weight.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: November 22, 1983
    Inventors: Alexandr Y. Rozovsky, Valentin D. Stytsenko, Svetlana A. Nizova, Petr S. Belov, Alexandr J. Dyakonov
  • Catalyst for dehydrogenation oxygen-containing derivatives of the cyclohexane series into the corresponding cyclic ketones and/or phenols
    Patent number: 4415477
    Abstract: The herein-proposed catalyst for dehydrogenation oxygen-containing derivatives of the cyclohexane series having the following general formula ##STR1## where R.sub.1 is either hydrogen or alkyl C.sub.1 -C.sub.4,R.sub.2 and R.sub.3 are radicals having either the same or different values --H, --OH, .dbd.O, provided that R.sub.2 and R.sub.3 are not hydrogen atoms both at a time,R.sub.1, R.sub.2, R.sub.3 being linked to different carbon atoms of the ring to form the corresponding cyclic ketones and/or phenols, comprises the following components (wt. %):nickel--15 to 55tin--0.2 to 1.95inert carrier--84.8 to 43.05,while the atomic ratio of nickel and tin lies within 15:1 and 410:1, respectively, and may contain additionally an alkali salt of a mineral acid in an amount of 0.01 to 1.0 wt. %.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: November 15, 1983
    Inventors: Alexandr Y. Rozovsky, Valentin D. Stytsenko, Svetlana A. Nizova, Petr S. Belov, Alexandr J. Dyakonov
  • Catalyst for dehydrogenation of oxygen containing derivatives of the cyclohexane series into corresponding cyclic ketones and/or phenols
    Patent number: 4363750
    Abstract: A catalyst for dehydrogenation of oxygen-containing derivatives of the cyclohexane series of the general formula: ##STR1## wherein R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl; R.sub.2 and R.sub.3 are radicals having the same or different meanings: --H, --OH, .dbd.O, provided that R.sub.2 and R.sub.3 are not simultaneously hydrogen and R.sub.1, R.sub.2 and R.sub.3 are attached to different carbon atoms of the cycle, into the corresponding cyclic ketones and/or phenols containing the following components, percent by weight:______________________________________ nickel 15 to 55 promotor-germanium and/or lead 0.2 to 8.0 inert carrier 84.8 to 37.0 ______________________________________and an atomic ratio of nickel to the promotor is within the range of from 15:1 to 410:1 respectively. The catalyst can additionally contain a salt of an alkali metal and a mineral acid in an amount of from 0.01 to 1.0% by weight.
    Type: Grant
    Filed: January 7, 1981
    Date of Patent: December 14, 1982
    Inventors: Alexandr Y. Rozovsky, Valentin D. Stytsenko, Svetlana A. Nizova, Petr S. Belov, Alexandr J. Dyakonov