Patents by Inventor Herbert Straussberger

Herbert Straussberger 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).

  • Process for treating silicon and ferrosilicon with slag
    Patent number: 4534791
    Abstract: The invention relates to a process for treating elemental silicon and ferrosilicon with slag having the following analytical composition:______________________________________ K.sub.2 O from 2 to 13% by weight Na.sub.2 O from 0 to 2% by weight .SIGMA. K.sub.2 O + Na.sub.2 O from 2 to 13% by weight SiO.sub.2 from 45 to 72% by weight Al.sub.2 O.sub.3 from 0 to 30% by weight .SIGMA. SiO.sub.2 + Al.sub.2 O.sub.3 from 60 to 78% by weight CaO from 0 to 30% by weight MgO from 0 to 30% by weight .SIGMA. CaO + MgO from 15 to 30% by weight CaF.sub.2 from 0 to 10% by weight MgF.sub.2 from 0 to 10% by weight .SIGMA. CaF.sub.2 + MgF.sub.2 from 0 to 10% by weight .SIGMA. CaO + MgO + CaF.sub.2 + MgF.sub.2 from 15 to 30 % by weight ______________________________________and impurities resulting from the raw materials.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: August 13, 1985
    Assignee: Wacker-Chemie GmbH
    Inventors: Anton More, Winfried Lang, Rudolf Riedle, Herbert Straussberger, Willi Streckel
  • Method for reactivating a residue containing elemental silicon
    Patent number: 4224297
    Abstract: A method for utilizing a residue containing elemental silicon in the form of particles having a maximum diameter of 50 microns which comprises heating the residue for at least 15 hours at a temperature of from 100.degree. to 350.degree. C. in the presence of atmospheric air and/or an inert gas and thereafter recycling the treated residue into a process for preparing halosilanes.
    Type: Grant
    Filed: May 17, 1978
    Date of Patent: September 23, 1980
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Straussberger, Willi Streckel, Rudolf Riedle
  • Process for preparing trimethylchlorosilane
    Patent number: 4155927
    Abstract: A process for preparing trimethylchlorosilane which comprises reacting methyldichlorosilane with methyl chloride and metallic aluminum.
    Type: Grant
    Filed: July 21, 1978
    Date of Patent: May 22, 1979
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Straussberger, Willi Streckel
  • Process of melting down and purifying silicon
    Patent number: 4151264
    Abstract: A process of melting down and purifying silicon, which comprises melting silicon in at least half of the amount up to double of the amount of a silicate melt heated by resistance heating up to a temperature of at least 1,420.degree. C., said melt consisting of 2-30% by weight of calcium oxide, 5-35% by weight of magnesium oxide, wherein the sum of calcium oxide and magnesium oxide will be 15-38% by weight, 0.5-28% by weight of aluminum oxide and 45-70% by weight of silicon dioxide, and wherein, to the melt are added at least 0.29% by weight of elementary and/or chemically bound copper, preferably 0.50-3% by weight, calculated on the silicon amount.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: April 24, 1979
    Assignee: Wacker-Chemie GmbH
    Inventors: Anton More, Rudolf Riedle, Herbert Straussberger, Willi Streckel, Johann Muschi