Preparing By Oxidation Patents (Class 549/256)
Of benzene or hydrocarbyl substituted benzene (Class 549/257)
Of acyclic or alicyclic hydrocarbon (Class 549/258)
  • Process for the production of phthalic anhydride
    Patent number: 4435580
    Abstract: A system for producing phthalic anhydride by the catalytic oxidation of naphthalene, wherein without creating a significant pressure drop in the system substantially all of the catalyst particles are removed from the product stream before the product stream is sent to a battery of switch condensers for recovery of the phthalic anhydride.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: March 6, 1984
    Assignee: The Badger Company, Inc.
    Inventor: Constantine D. Miserlis
  • Process for the production of phthalic anhydride
    Patent number: 4435581
    Abstract: A system for producing phthalic anhydride by the catalytic oxidation of naphthalene, wherein the system is characterized by reduced capital and operating costs due to lower operating pressures.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: March 6, 1984
    Assignee: The Badger Company, Inc.
    Inventor: Constantine D. Miserlis