US Patent Issued to Mitsubishi Chemical on Aug. 25 for "Method for producing (meth)acrolein and method for producing (meth)acrylic acid" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,833, issued on Aug. 25, was assigned to Mitsubishi Chemical Corp. (Tokyo).

"Method for producing (meth)acrolein and method for producing (meth)acrylic acid" was invented by Yasushi Ogawa (Tokyo), Yoshimune Abe (Tokyo) and Takuya Nakamura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing (meth)acrolein by vapor-phase catalytic oxidation of propylene or isobutylene in a multitubular reactor including a plurality of reaction tubes, the reaction tubes each including a reaction zone filled with a catalyst including molybdenum oxide and a cooling zone filled with an inert substance, wherein a temperature of a heat medium that fl...