US Patent Issued to Covestro Deutschland on Oct. 14 for "Method of cleaning an apparatus used in the concentration of a mineral acid" (German Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,614, issued on Oct. 14, was assigned to Covestro Deutschland AG (Leverkusen, Germany).

"Method of cleaning an apparatus used in the concentration of a mineral acid" was invented by Bernd Pennemann (Bergisch Gladbach, Germany) and Kameh Tajvidi (Neuss, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for preparing an apparatus (or a plant comprising a plurality of apparatuses), for example a heat exchanger, a vaporizer or a distillation column, for use in a process (in particular a continuously operated process) for concentrating a mineral acid by evaporation of water, wherein the apparatus or the plant...