Patents by Inventor Wolf Becker

Wolf Becker 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).

  • Recovery of hydrofluoric acid from aqueous fluosilicic acid
    Patent number: 3971845
    Abstract: Recovery of hydrofluoric acid from aqueous fluosilicic acid by treating said aqueous fluosilicic acid at a temperature of from 100.degree. to 300.degree.C. and under a pressure of from 3 to 80 atmospheres and separating resulting hydrogen fluoride containing aqueous phase and silicon tetrafluoride containing gaseous phase and optionally hydrolyzing the silicon tetrafluoride containing gaseous phase in aqueous medium and recycling the aqueous fluosilicic acid to the process as starting material.
    Type: Grant
    Filed: September 26, 1973
    Date of Patent: July 27, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolf Becker, Wolfgang Weiss
  • Production of metal fluorides from fluosilicic acid
    Patent number: 3956147
    Abstract: A process which comprises reacting at a temperature above 100.degree.C. a metal oxide, hydroxide or a mixture thereof with aqueous fluosilicic acid, said fluosilicic acid having a concentration of about 10 to 45% by weight, to form gaseous silicon tetrafluoride and the corresponding metal fluoride and recovering said metal fluoride from the reaction medium.
    Type: Grant
    Filed: January 28, 1974
    Date of Patent: May 11, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolf Becker, Heinz Jonas, Wolfgang Weiss