Patents by Inventor World Resources Company

World Resources Company 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).

  • Publication number: 20130078166
    Abstract: A method of recovering rhenium (Re) and other metals from Re-bearing materials in the form of ammonium perrhenate having at least the step of adding Re-bearing materials into a leaching slurry. Additionally, the method has the step of adjusting the pH of the slurry to obtain Re in soluble form in a metal salt solution and insoluble residues; filtering the metal salt solution to remove the insoluble residues; selectively precipitating Re from the metal salt solution; and filtering the Re precipitate from the metal salt solution to obtain a Re filtercake. The method further has the step of drying and formulating Re to produce Re sulfide product.
    Type: Application
    Filed: November 20, 2012
    Publication date: March 28, 2013
    Applicants: WRC WORLD RESOURCES COMPANY GMBH, WORLD RESOURCES COMPANY
    Inventors: World Resources Company, WRC World Resources Company GmbH