US Patent Issued to HarbisonWalker International Holdings on Jan. 27 for "Refractory lining design and steel practice for low refractory waste, and refractory based on reclaimed low-impurity magnesia-carbon aggregate" (Pennsylvania Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,410, issued on Jan. 27, was assigned to HarbisonWalker International Holdings Inc. (Moontownship, Pa.).

"Refractory lining design and steel practice for low refractory waste, and refractory based on reclaimed low-impurity magnesia-carbon aggregate" was invented by David Hartwich (Bethel Park, Pa.) and Samantha Garnier (Pittsburgh).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metallurgical vessel structure and method is provided for producing low-impurity Magnesia-Carbon reclaimed aggregate suitable for reuse in the production of high purity Magnesia-Carbon refractory. A metallurgical vessel is assembled with a non-reactive or chemically similar b...