US Patent Issued to Carbon Technology Holdings on May 6 for "Bio-reduction of metal ores integrated with biomass pyrolysis" (Utah, Missouri, Michigan Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,760, issued on May 6, was assigned to Carbon Technology Holdings LLC (Oakdale, Minn.).

"Bio-reduction of metal ores integrated with biomass pyrolysis" was invented by James A. Mennell (Brighton, Utah), Daren Daugaard (Newburg, Mo.) and Dustin Slack (Gwinn, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Some variations provide a composition for reducing a metal ore, the composition comprising a carbon-metal ore particulate, wherein the carbon-metal ore particulate comprises at least about 0.1 wt % to at most about 50 wt % fixed carbon on a moisture-free and ash-free basis, and wherein the carbon is at least 50% renewable carbon as determined fr...