US 12,291,760 B2
Bio-reduction of metal ores integrated with biomass pyrolysis
James A. Mennell, Brighton, UT (US); Daren Daugaard, Newburg, MO (US); and Dustin Slack, Gwinn, MI (US)
Assigned to Carbon Technology Holdings, LLC, Oakdale, MN (US)
Filed by Carbon Technology Holdings, LLC, Oakdale, MN (US)
Filed on Sep. 25, 2021, as Appl. No. 17/485,365.
Claims priority of provisional application 63/083,223, filed on Sep. 25, 2020.
Prior Publication US 2022/0098685 A1, Mar. 31, 2022
Int. Cl. C21B 5/00 (2006.01); C10B 53/02 (2006.01); C21B 13/00 (2006.01); C22B 1/00 (2006.01); C22B 1/24 (2006.01); C22B 5/12 (2006.01); C22B 15/00 (2006.01); C22B 23/02 (2006.01)
CPC C22B 1/2406 (2013.01) [C10B 53/02 (2013.01); C21B 5/008 (2013.01); C21B 13/004 (2013.01); C22B 1/005 (2013.01); C22B 5/12 (2013.01); C22B 15/0021 (2013.01); C22B 23/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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 fixed carbon is at least about 50% renewable carbon as determined from a measurement of the 14C/12C isotopic ratio of the carbon.