Patents by Inventor Cristian Alejandro Vargas

Cristian Alejandro Vargas 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).

  • Precipitation of Antimony and Bismuth from Copper Refinery Electrolyte Using PbO2
    Publication number: 20130272932
    Abstract: The invention is suitable for use in metal and nonmetal mining and in general, in any area of operation containing Sb and Bi in solution in an electrolyte based mainly on sulfuric acid. The system consists in contacting solid lead dioxide (PbO2), which can be activated superficially with an oxidizing agent, for example hydrogen peroxide (H2O2), to increase its reactivity, with an acid electrolyte that contains Sb and Bi in solution, with the purpose of causing a decrease in the content of soluble Sb and Bi present in the liquid phase, forming insoluble compounds based on Pb—Sb and Pb—Bi. With this invention the presence of Sb and Bi in solution is reduced by at least 70%.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Gerardo Alexis CIFUENTES, Jaime Roberto Simpson, Cristian Alejandro Vargas