US Patent Issued to Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e. V. on May 27 for "Processing and purification of carbonaceous materials" (German Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,476, issued on May 27, was assigned to Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e. V. (Munich).

"Processing and purification of carbonaceous materials" was invented by Christian Kaiser (Valley, Germany), Volker Thome (Valley, Germany), Severin Seifert (Valley, Germany) and Sebastian Dittrich (Valley, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for the processing and/or purification of carbon black comprising the steps of: a) providing carbon black containing impurities b) providing an aqueous fluid comprising a nitrogen hydride c) providing an alkali metal hydroxide and/or ...