US 11,851,723 B2
Carbon-negative metallurgical products
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 Feb. 17, 2022, as Appl. No. 17/674,022.
Claims priority of provisional application 63/151,026, filed on Feb. 18, 2021.
Prior Publication US 2022/0259684 A1, Aug. 18, 2022
Int. Cl. C21B 5/00 (2006.01); C22B 1/24 (2006.01); C22C 38/00 (2006.01); C21C 5/00 (2006.01)
CPC C21B 5/007 (2013.01) [C22B 1/2406 (2013.01); C22C 38/00 (2013.01); C21C 5/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A carbon-negative metal product that is characterized by a carbon intensity less than 0 kg CO2e per metric ton of the carbon-negative metal product, wherein the carbon-negative metal product contains from about 50 wt % to about 100 wt % of one or more metals and optionally one or more alloying elements;
wherein the one or more alloying elements are selected from Al, Bi, B, C, Ce, Cr, Cu, Fe, H, Mg, Mn, Mo, N, Nb, Ni, P, Pb, Si, Sn, S, Ta, Ti, W, V, Zr, Zn, or combinations thereof; and
wherein the one or more alloying elements include hydrogen.