US Patent Issued to ThyssenKrupp Steel Europe on Oct. 21 for "Sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials with recovery of lead and zinc" (German Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,666, issued on Oct. 21, was assigned to ThyssenKrupp Steel Europe AG (Duisburg, Germany).

"Sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials with recovery of lead and zinc" was invented by Andreas Tebeck (Rheurdt, Germany) and Eckhard Pappert (Lunen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a sustainable regeneration process for metallurgical plant dusts and sludges for producing iron-containing, heavy metal-depleted secondary raw materials and recovering lead and zinc, by providing a first starting material which compr...