Patents by Inventor Dan L. Wensel

Dan L. Wensel 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).

  • Solvent extraction landfill system and method
    Publication number: 20040131424
    Abstract: A system and method for extracting metals from material deposited in a landfill include applying a leaching solution to the material. The leaching solution dissolves various metals it contacts, forming a leachate bearing one or more metals. The metal-bearing leachate is further processed in a solvent extraction (SX) plant to produce a metal-bearing solution. The metal bearing solution undergoes further processing, such as electrowinning (EW), to recover one or more metals from the metal-bearing solution.
    Type: Application
    Filed: January 6, 2003
    Publication date: July 8, 2004
    Inventor: Dan L. Wensel