ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,105, issued on Aug. 25, was assigned to SMS group GmbH (Dusseldorf, Germany).
"Method for producing liquid pig iron from a DRI product" was invented by Jochen Schluter (Dortmund, Germany), Ralf Northemann (Sprockhovel, Germany), Thomas Henkel (Duisburg, Germany) and Paul Tockert (Berburg, Luxembourg).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing liquid pig iron comprises: i) providing a DRI product with an iron content of at least 75.0 wt. %, a carbon content of at least 0.10 wt. % and a content of acidic and basic slag components, comprising CaO, SiO2, MgO and Al2O3 of max. 15.0 wt. %; ii) supplying the DRI product, adding sl...