Patents by Inventor Roberto Marcelo Parada Araya

Roberto Marcelo Parada Araya 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 for reducing and/or refining a metal-containing slag
    Patent number: 7819941
    Abstract: The invention relates to a method for reducing and/or refining a metal-containing slag. The aim of the invention is to improve reduction of the slag. For this purpose, calcium carbide (CaC2) is added to the slag as the reducing agent.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: October 26, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Jürgen Kunze, Rolf Degel, Dieter Borgwardt, Andrzej Warczok, Gabriel Angel Riveros Urzua, Marco Antonio Caceres Rivera, Roberto Marcelo Parada Araya
  • Method For Reducing And/Or Refining A Metal-Containing Slag
    Publication number: 20090114063
    Abstract: The invention relates to a method for reducing and/or refining a metal-containing slag. The aim of the invention is to improve reduction of the slag. For this purpose, calcium carbide (CaC2) is added to the slag as the reducing agent.
    Type: Application
    Filed: June 8, 2006
    Publication date: May 7, 2009
    Inventors: Jurgen Kunze, Rolf Degel, Dieter Borgwardt, Andrzej Warczok, Gabriel Angel Riveros Urzua, Marco Antonio Caceres Rivera, Roberto Marcelo Parada Araya