Patents by Inventor Günter Lailach

Günter Lailach 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).

  • Patent number: 6682705
    Abstract: The invention relates to a process for carrying out reactions in fluidized beds with transversal introduction of a reactant selected from oxygen or an oxygen-containing gas and a combustible reactant into a fluidized particle bed by transversal injection at supersonic speed by supersonic nozzles.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: January 27, 2004
    Assignee: Messer Griesheim GmbH
    Inventors: Gerhard Gross, Guenter Lailach, Dieter Wuelbeck
  • Patent number: 6530987
    Abstract: Process for the preparation of iron oxide pigments from the waste acid resulting from the preparation of titanium dioxide by the sulfate process, characterized in that in a first stage a partial neutralization of the sulfuric acid contained in the waste acid is performed with compounds from the group comprising metallic iron and/or iron compounds, the sulfuric acid is optionally further neutralized with a further alkaline compound, the precipitate containing Ti, Al, Cr and V compounds is separated from the resultant reaction product and an iron oxide yellow pigment or iron oxide black pigment is precipitated from the resultant iron sulfate-containing solution by addition of alkaline compounds as well as an oxidizing agent, each pigment being able to be baked to form an iron oxide red pigment.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: March 11, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Auer, Günter Lailach, Ulrich Meisen, Werner Schuy, Udo Julius
  • Patent number: 6440377
    Abstract: Process for the production of gypsum and also of an iron-oxide pigment from the waste acid that accumulates in the course of the production of titanium dioxide in accordance with the sulfate process, characterized in that in a first stage a partial neutralization of the waste acid is effected with a calcium compound subject to precipitation and optionally direct separation of gypsum, subsequently the remaining solution is neutralized further in a second stage subject to precipitation of a deposit containing Ti, Al, Cr, V and optionally Fe(III) and from the solution containing iron sulfate that is obtained after separation of the solids an iron-oxide pigment is produced in a third stage by addition of alkaline compounds and also of an oxidizing agent.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: August 27, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Auer, Günter Lailach, Ulrich Meisen, Werner Schuy
  • Patent number: 6416723
    Abstract: Process for the production of gypsum and also of an iron-oxide pigment from the waste acid that accumulates in the course of the production of titanium dioxide in accordance with the sulfate process, characterized in that in a first stage a partial neutralization of the waste acid is effected with a calcium compound subject to precipitation and optionally direct separation of gypsum, subsequently the remaining solution is neutralized further in a second stage subject to precipitation of a deposit containing Ti, Al, Cr, V and optionally Fe(III) and from the solution containing iron sulfate that is obtained after separation of the solids an iron-oxide pigment is produced in a third stage by addition of alkaline compounds and also optionally addition of ammonia and also of an oxidizing agent, ammonia being liberated by addition of CaO and/or Ca(OH)2 from the solution containing (NH4)2SO4 that is obtained after separation of the iron-oxide pigment.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: July 9, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Auer, Günter Lailach, Ulrich Meisen, Werner Schuy
  • Patent number: 6395165
    Abstract: A novel process for the continuous preparation of perfluorinated organic compounds by electrochemical fluorination of the parent non-fluorinated or partially fluorinated organic compounds using hydrogen fluoride having an arsenic content of less than about 10 ppm can be operated over a prolonged period of time without the electrode area-time yield decreasing over time.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: May 28, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Bulan, Joachim Herzig, Günter Lailach
  • Patent number: 6251358
    Abstract: Process for the preparation of sodium fluoride from sodium hydroxide solution and hydrogen fluoride or hydrofluoric acid, characterized in that <45% strength by weight, preferably 20 to 40% strength by weight, sodium hydroxide solution and hydrogen fluoride or hydrofluoric acid are introduced separately into a saturated NaF solution in which 4 to 50% by weight, preferably 5 to 30% by weight, of solid NaF are suspended and whose temperature is in the range from 20 to 80° C., preferably 30 to 60° C.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Günter Lailach, Andreas Bulan, Günter Buss