ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,182, issued on March 17, was assigned to SUMITOMO CHECMICAL COMPANY Ltd. (Tokyo).
"Method for producing propylene" was invented by Keisuke Tanaka (Ichihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for efficiently producing propylene from propanol containing a large amount of water. A method for producing propylene includes a dehydration reaction step of dehydrating a raw material containing propanol and water using a catalyst containing silica-alumina, the silica-alumina having a SiO2 content of 3 to 80 in terms of a molar ratio with respect to Al2O3. The catalyst containing the silica-alumina is produced by a meth...