Patents Assigned to Vinnolit Monomer GmbH & Co. KG
  • Method for preparing decomposition products from the thermal decomposition of 1,2-dichlorethane
    Patent number: 6426440
    Abstract: The work-up of the gaseous products from the thermal cracking of 1,2-dichloroethane is simplified if the cracking gases are cooled to a temperature range of about 150 to 180° C., only a subsidiary proportion, which comprises all the coke formed, being condensed and fed to a separate work-up.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: July 30, 2002
    Assignee: Vinnolit Monomer GmbH & Co. KG
    Inventors: Thomas Wild, Juergen Eichler, Werner Strang, Peter Widmann
  • Process for the preparation of 1,2-dichloroethane by oxychlorination
    Patent number: 6417414
    Abstract: The present invention is directed to a process for preparing 1,2-dichloroethane by reacting ethene with hydrogen chloride and oxygen over a copper-containing fluidized-bed catalyst. The discharge of the catalyst from the reactor per se is avoided if the catalyst is virtually completely retained in the upper part of the reactor by means of superfine filtration.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 9, 2002
    Assignee: Vinnolit Monomer GmbH & Co. KG
    Inventors: Horst Ertl, Peter Schwarzmaier, Ingolf Mielke, Peter Kammerhofer
  • Process for preparing 1,2-dichloroethane by direct chlorination
    Patent number: 6235953
    Abstract: The preparation of 1,2-dichloroethane (EDC) is carried out by feeding ethylene and chlorine into circulating EDC (direct chlorination) such that the reaction mixture boils and the heat of the reaction is led away from the gas space.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 22, 2001
    Assignee: Vinnolit Monomer GmbH & Co. KG
    Inventors: Peter Schwarzmaier, Ingolf Mielke
  • Process for preparing tin tetrachloride
    Patent number: 6001323
    Abstract: The preparation of tin tetrachloride from tin granules and chlorine can be conducted safely even at high temperatures if the chlorine, before coming into contact with the tin, is brought into a highly disperse distribution in the circulating tin tetrachloride and develops a uniform flow profile.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: December 14, 1999
    Assignee: Vinnolit Monomer GmbH & Co. KG
    Inventor: Siegfried Benninger