ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,050, issued on March 31, was assigned to Beijing University of Chemical Technology (Beijing).
"Preparation method of biobased adipic acid" was invented by Tianwei Tan (Beijing), Chun Shen (Beijing) and Xiao Liang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a preparation method of biobased adipic acid. In the method, by using a nickel-based hydrogenation catalyst provided by the present invention, when a substrate concentration is as high as 200 g/L, the reaction of biobased sodium muconate and hydrogen is catalyzed in a batch reactor and a micro packed bed to prepare sodium adipate, and the yield of a ta...