Patents Assigned to Michio Tanimoto
  • Publication number: 20020007088
    Abstract: As an improvement in the process for preparing unsaturated aldehydes and unsaturated carboxylic acids through vapor-phase catalytic oxidation of at least one starting compound selected from propylene, isobutylene, t-butanol and methyl-t-butyl ether with molecular oxygen or a molecular oxygen-containing gas, using a fixed bed shell-and-tube type reactor which is filled with shaped catalysts, a process capable of effectively inhibiting occurrence of hot spots or excessive heat generation at the hot spots and producing unsaturated aldehydes and unsaturated carboxylic acids at high yields is provided.
    Type: Application
    Filed: May 11, 2001
    Publication date: January 17, 2002
    Applicant: Michio Tanimoto
    Inventors: Michio Tanimoto, Tadashi Sento