US Patent Issued to Chevron U.S.A. on Aug. 25 for "Method for preparing high-silica Y zeolite" (California Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,776, issued on Aug. 25, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).

"Method for preparing high-silica Y zeolite" was invented by Christopher Michael Lew (Alameda, Calif.), Rebecca Edyne MacLean (Pleasanton, Calif.) and Kurt Owen Jensen (Richmond, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is disclosed for making a high-silica zeolite having an FAU framework structure. The method includes: (1) preparing a reaction mixture comprising: (a) a source of silica; (b) a source of alumina; (c) a source of an alkali or alkaline earth metal cation; (d) an organic structure directing agent containing at least one cation selected...