US Patent Issued to ENI on Aug. 19 for "Process for the selective recovery of transition metals from organic residues" (Italian Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,011, issued on Aug. 19, was assigned to ENI S.P.A. (Rome).

"Process for the selective recovery of transition metals from organic residues" was invented by Stefania Guidetti (San Donato Milanese, Italy) and Alberto Renato De Angelis (San Donato Milanese, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is a process for the selective recovery of transition metals from an organic stream containing transition metals. The organic stream and possibly a first extractor if solid, are melted up to the liquid state. The extractor consists of an ionic liquid or a mixture of two or more ionic liquids and the ionic liquid contains an ammonium salt as c...