Patents by Inventor Theodore V. Ferris

Theodore V. Ferris has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Manufacture of aqueous formaldehyde
    Patent number: 4454354
    Abstract: Formaldehyde manufacture by oxidative-dehydrogenation of methanol over a silver or copper catalyst. Aqueous formaldehyde solution is obtained from the reaction and is stripped of a mixture of methanol, formaldehyde and water by a low energy process at relatively low temperature and low reflux in a still comprising at least about 1.5 theoretical plates, the stripping conditions being selected to allow substantial reduction of the methanol content of the aqueous formaldehyde solution and recycle of the methanol to the reactor.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: June 12, 1984
    Assignee: Monsanto Company
    Inventors: Theodore V. Ferris, Richard C. Kmetz
  • Process for removing methanol from aqueous formaldehyde
    Patent number: 4385188
    Abstract: Aqueous formaldehyde solutions containing minor amounts of methanol are substantially stripped of methanol by a low energy process at relatively low temperature by means of recycled inert gas in a stripping column comprising at least about 1.5 theoretical transfer units for stripping methanol.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: May 24, 1983
    Assignee: Monsanto Company
    Inventors: Theodore V. Ferris, Richard C. Kmetz
  • Manufacture of aqueous formaldehyde
    Patent number: 4383123
    Abstract: Formaldehyde manufacture by oxidative-dehydrogenation of methanol over a silver or copper catalyst. Aqueous formaldehyde solution is obtained from the reaction and is substantially stripped of methanol by a low energy process at relatively low temperature by means of recycled off-gas in a stripping column comprising at least about 1.5 theoretical transfer units for stripping methanol.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: May 10, 1983
    Assignee: Monsanto Company
    Inventors: Theodore V. Ferris, Richard C. Kmetz
  • Manufacture of aqueous formaldehyde
    Patent number: 4348540
    Abstract: Formaldehyde manufacture by oxidative-dehydrogenation of methanol over a silver or copper catalyst. Aqueous formaldehyde solution is obtained from the reaction and is stripped of methanol and water by a low energy process at relatively low temperature by means of recycled inert gas in a stripping column comprising at least about 1.5 theoretical transfer units for stripping methanol.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: September 7, 1982
    Assignee: Monsanto Company
    Inventors: Theodore V. Ferris, Richard C. Kmetz