US Patent Issued to Chevron U.S.A. on Aug. 11 for "Metals recovery from spent catalyst" (California Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,892, issued on Aug. 11, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).

"Metals recovery from spent catalyst" was invented by Rahul Shankar Bhaduri (Moraga, Calif.), Bruce Edward Reynolds (Martinez, Calif.), Oleg A. Mironov (Hercules, Calif.), Alexander Kuperman (Orinda, Calif.) and Woodrow K. Shiflett (Richmond, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover catalyst metals used in the petroleum and chemical processing industries. The me...