US Patent Issued on March 24 for "Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage" (West Virginia Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,188, issued on March 24.

"Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage" was invented by Paul Ziemkiewicz (Morgantown, W.va.), Aaron Noble (Blacksburg, W.va.) and Chris Vass (Rainelle, W.va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, the disclosure relates to a continuous process for treating acid mine drainage while simultaneously recovering a high-grade rare earth preconcentrate suitable for extraction of commercially valuable rare earth oxides. In a further aspect, the preconcentrate is from about 0.1% to 5% rare earth elements on a dry weight basis. In another aspect, the disc...