Patents Assigned to Consortium fuer Elektrochemische Industries, GmbH
  • Patent number: 6806379
    Abstract: A continuous process for preparing alkylamines comprises reacting continuous streams of ammonia and alkyl halide in a molar ratio of at least 10:1 in a pressure reactor. The ultimate reaction mixture has a temperature of >80° C., a pressure of >40 bar and an ammonium halide content of >1% by weight, and comprises two phases (A) a first phase comprising at least 75% by weight of the total amount of ammonium halide formed, and (B) a second phase comprising at least 80% by weight of the total amount of alkylamine formed. The first and second phases are separated, and an alkylamine product is recovered therefrom.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: October 19, 2004
    Assignee: Consortium fuer elektrochemische Industries GmbH
    Inventors: Andreas Bauer, Herbert Jekat, Jochen Rauch, Peter John, Wolfgang Kohlmann, Volker Frey, Bernd Pachaly
  • Patent number: 6605716
    Abstract: A process for the preparation of hydroxy and amino compounds, in which, in a first step, an aldehyde, ketone or imine is reacted in a Reformatsky reaction with a reactive halogen compound and zinc, in carboxylic esters as solvents, the reactive halogen compound being brought into contact with the zinc at the same time as or after contact with the aldehyde, ketone or imine, and in a second step, the reaction product of the first step is hydrolyzed.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 12, 2003
    Assignee: Consortium fuer Elektrochemische Industries, GmbH
    Inventors: Klaus Sorger, Hermann Petersen