US Patent Issued to YARA INTERNATIONAL ASA on Feb. 10 for "Process for the removal of heavy metals from a phosphoric acid containing composition using a flocculating agent" (Norwegian, Polish Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,582, issued on Feb. 10, was assigned to YARA INTERNATIONAL ASA (Oslo, Norway).

"Process for the removal of heavy metals from a phosphoric acid containing composition using a flocculating agent" was invented by Patrycja Kita (Poznan, Poland), Tanja Vojnovic (Skien, Norway), Tom Rames Jorgensen (Porsgrunn, Norway) and Per Arne Jordbraek (Sofiemyr, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "Improved methods for the removal of heavy metals, in particular cadmium, from an aqueous phosphoric acid containing composition, wherein an ionic polymeric flocculating agent is added to a phosphoric acid containing composition subsequent to the addition ...