ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,735, issued on Aug. 12, was assigned to CHIYODA Corp. (Yokohama, Japan) and UBE Corp. (Yamaguchi, Japan).
"Manufacturing method of butadiene" was invented by Mitsunori Shimura (Yokohama, Japan), Dai Takeda (Yokohama, Japan), Jun Matsumoto (Yokohama, Japan), Atsushi Yamada (Yamaguchi, Japan) and Yuki Nagao (Yamaguchi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A manufacturing method of butadiene includes an electrolytic reduction process that produces ethylene and oxygen from carbon dioxide and water as a raw material by electrolytic reduction, a butene producing process that produces butene by dimerizing the ethylene produced in the electr...