ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,302, issued on May 27, was assigned to UOP LLC (Des Plaines, Ill.) and China Petroleum & Chemical Corp. (Beijing).
"Transalkylation of alkylated phenols" was invented by Somphonh Peter Phivilay (Brookshire, Texas), Neelesh Rane (Des Plaines, Ill.), Liwei Guo (Katy, Texas) and Zhenhua Zhou (Katy, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Transalkylation processes using catalysts comprising three dimensional 12 membered ring zeolites with a combination of small and large pores are described. These catalysts have increased conversion of alkylphenols to phenol, cresols, and alkylbenzenes from coal-derived liquid streams compared to catalysts ...