Patents by Inventor Peter Entner

Peter Entner 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).

  • Regulation and stabilization of the AlF.sub.3 content in an aluminum electrolysis cell
    Patent number: 5094728
    Abstract: A method is used for regulating and stabilizing an AlF.sub.3 content (c), which is at least about 10% by weight, in the bath of an electrolysis cell for the production of aluminum from alumina dissolved in a cryolite melt.The individual state of an aluminum electrolysis cell, in particular of the cathodic carbon sump thereof, is analyzed for a period (t.sub.1) from a series of measured values, comprising a plurality of parameters. By means of a model calculation, the optimum time delay (ZV) between the addition of AlF.sub.3 and its effect in the electrolyte is determined. The additions (z) of AlF.sub.3 are calculated for a preset defined AlF.sub.3 content (c) allowing for the time delay (ZV), and AlF.sub.3 is added in portions or continuously.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: March 10, 1992
    Assignee: Alusuisse-Lonza Services Ltd.
    Inventor: Peter Entner