Patents Assigned to Studiengesellschaft Kohle GmbH
  • Method of preparing active magnesium-hydride or magnesium hydrogen-storer systems
    Patent number: 5162108
    Abstract: A method of preparing an active magnesium-hydride or magnesium hydrogen-storer system which can reversibly take up H.sub.2, comprising contacting finely divided magnesium hydride or metallic magnesium with a solution of a metal complex or of a metal-organic compound of a transition metal of Subgroups IV-VIII of the periodic table, and then removing the solution. The product performs better with regard to speed and efficiency upon repeated hydrogenation and dehydrogenation, as in hydrogen storage and evolution.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: November 10, 1992
    Assignee: Studiengesellschaft Kohle GmbH
    Inventor: Borislav Bogdanovic
  • Process for preparing intermetallic compounds or hydrides thereof
    Patent number: 4828606
    Abstract: Intermetallic compounds and hydrides thereof, characterized in that they have been prepared by reacting hydrides of the elements of the main groups I, II, III and IV of the Periodic Table, magnesium hydridehalides or magnesium dialkyls having the general formula MgR.sub.2 (R=alkyl) in a solvent with bisallyl metal compounds of the metals of the subgroup VIII of the Periodic Table or of zinc or with the homologues of the bisallyl compounds of said metals, and processes for preparing said compounds.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: May 9, 1989
    Assignee: Studiengesellschaft Kohle GmbH
    Inventors: Borislav Bogdanovic, Ursula Wilczok
  • Method of preparing active magnesium-hydride of magnesium hydrogen-storer systems
    Patent number: 4798718
    Abstract: A method of preparing an active magnesium-hydride or magnesium hydrogen-storer system which can reversibly take up H.sub.2, comprising contacting finely divided magnesium hydride or metallic magnesium with a solution of a metal complex or of a metal-organic compound of a transition metal of Subgroups IV-VIII of the periodic table, and then removing the solution. The product performs better with regard to speed and efficiency upon repeated hydrogenation and dehydrogenation, as in hydrogen storage and evolution.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: January 17, 1989
    Assignee: Studiengesellschaft Kohle, GmbH
    Inventor: Borislav Bogdanovic
  • Process for preparation of 2-vinylpyridine from acetylene and acrylonitrile
    Patent number: 4267329
    Abstract: A process is described for the catalytic, selective preparation of 2-vinylpyridine from acetylene and acrylonitrile using a cyclopentadienylcobalt catalyst or .pi.-allylcobalt catalyst at elevated temperature in an inert solvent, wherein the acrylonitrile concentration is up to 2 mols/liter and the reaction is carried out at a temperature over 140.degree. C. and up to 180.degree. C., the reaction time being not more than 50 minutes.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: May 12, 1981
    Assignee: Studiengesellschaft Kohle GmbH
    Inventors: Helmut Bonnemann, Marc Samson