ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,437, issued on Oct. 7, was assigned to ELECTRASTEEL INC. (Boulder, Colo.).
"Impurity removal in an iron conversion system" was invented by Ai Quoc Pham (Boulder, Colo.), Sandeep Nijhawan (Boulder, Colo.), Adolfredo Alvarez (Boulder, Colo.) and Steven Fatur (Boulder, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for producing iron from an iron-containing ore and removing impurities found in the iron-containing ore are disclosed. For example, a method for producing iron comprises providing a feedstock having an iron-containing ore and one or more impurities to a dissolution subsystem comprising a first electrochemical cell; p...