ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,983, issued on June 3, was assigned to SMS GROUP GMBH (Duesseldorf, Germany).

"Method for granulating a metallurgical slag" was invented by Rolf Degel (Ratingen, Germany), Timm Lux (Meerbusch, Germany), Alexander Bergs (Rheine, Germany) and Nikolaus Peter Kurt Borowski (Dusseldorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for the granulation of a metallurgical slag includes blowing, from a blower or air nozzle, heated air onto liquid slag to atomize the liquid slag and subsequently form granulated slag as the atomized slag cools. The granulated slag is blown into and collected by a working chamber. In order to ensure a high qua...