Patents by Inventor Andrzej K. Kuszlik

Andrzej K. Kuszlik 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).

  • Method and device for purifying high melting organic raw products or compound mixtures by means of fractionated melting crystallisation from solvent mixtures
    Patent number: 8056362
    Abstract: This invention relates to a method and a device for purifying and/or separating preferably high melting organic raw products or compound mixtures containing, in particular, high melting and/or degradable sterols, by layer crystallization on first heat exchanger surfaces. The raw product is received in a solvent or solvent mixture, and then brought into contact with heat exchanger surfaces. The desired product crystallizes on the heat exchanger surfaces by slow cooling. Solvent evaporating during the crystallization or sweating process is condensed and returned to the mixture.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: November 15, 2011
    Assignees: Sulzer Chemtech AG, Resitec Participacoes Ltda
    Inventors: Rodolfo Rohr, Ali Nikzad, Andrzej K. Kuszlik
  • Method and device for purifying high melting organic raw products or compund mixtures by means of fractionated melting crystallisation from solvent mixtures
    Publication number: 20090209773
    Abstract: This invention relates to a method and a device for purifying and/or separating preferably high melting organic raw products or compound mixtures containing, in particular, high melting and/or degradable sterols, by layer crystallisation on first heat exchanger surfaces. The raw product is received in a solvent or solvent mixture, and then brought into contact with heat exchanger surfaces. The desired product crystallises on the heat exchanger surfaces by slow cooling. Solvent evaporating during the crystallisation or sweating process is condensed and returned to the mixture.
    Type: Application
    Filed: July 26, 2006
    Publication date: August 20, 2009
    Inventors: Rodolfo Rohr, Ali Nikzad, Andrzej K. Kuszlik