US Patent Issued to Covestro Deutschland on April 14 for "Drying apparatus and use thereof and process for producing an isocyanate using the drying apparatus" (German Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,544, issued on April 14, was assigned to Covestro Deutschland AG (Leverkusen, Germany).

"Drying apparatus and use thereof and process for producing an isocyanate using the drying apparatus" was invented by Joachim Zechlin (Neuss, Germany), Alexander Plum (Cologne, Germany) and Martin Kuhlmann (Cologne, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a drying apparatus for evaporating volatile constituents from a starting material to be dried, to a process for producing an isocyanate using this drying apparatus and to the use of the drying apparatus for drying distillation bottoms streams, oil-containing waste...