ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,120, issued on May 5, was assigned to UCHICAGO ARGONNE LLC (Chicago).
"Direct reduction of iron by hydrogen plasma in a rotary kiln reactor" was invented by Zuotao Zeng (Woodridge, Ill.), John P. Kopasz (Bolingbrook, Ill.), Theodore R. Krause (Naperville, Ill.), Angel Yanguas-Gil (Northbrook, Ill.) and Meimei Li (Willowbrook, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrogen-plasma rotary kiln furnace reactor and a method of reducing iron ore to iron using the same are disclosed. The hydrogen-plasma rotary kiln furnace includes a rotary kiln furnace and a hydrogen-plasma generator."
The patent was filed on Sept. 30, 2022, under Applicati...