US Patent Issued to S.A. Lhoist Recherche et Developpement on March 18 for "Rotary kiln and method for burning carbonate-containing material, in particular limestone or dolomite" (German Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,309, issued on March 18, was assigned to S.A. Lhoist Recherche et Developpement (Ottignies-Louvain-la-Neuve, Belgium).

"Rotary kiln and method for burning carbonate-containing material, in particular limestone or dolomite" was invented by Carsten Kaczinski (Dortmund, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a rotary kiln for burning carbonate-containing material, in particular limestone or dolomite, including a rotary tube with an inlet end for the feeding of the material to be burned and an outlet end for the discharging of the burned material, the rotary tube having an inlet zone at its inlet end and...