Patents by Inventor John Theodore Lileck

John Theodore Lileck 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).

  • Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride
    Patent number: 6790428
    Abstract: A process for reducing or eliminating NH3/HF/MFz liquid waste melt in the manufacture of NF3 is provided which includes the steps of providing an NF3 reactor for a reaction of F2 with a liquid NH3/HF/MFz mixture that produces NF3, HF, N2 and other nitrogen fluorides as gaseous products and a liquid NH3/HF/MFz mixture as the liquid waste melt. The process further provides for reduction or elimination of the liquid NH3/HF/MFz waste melt produced by the reactor.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: September 14, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Athanasios Tsirukis, John Theodore Lileck, Howard Paul Withers, Jr., Kenneth E. Fegley
  • Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride
    Publication number: 20030180211
    Abstract: A process for reducing or eliminating NH3/HF/MFz liquid waste melt in the manufacture of NF3 is provided which includes the steps of providing an NF3 reactor for a reaction of F2 with a liquid NH3/HF/MFz mixture that produces NF3, HF, N2 and other nitrogen fluorides as gaseous products and a liquid NH3/HF/MFz mixture as the liquid waste melt. The process further provides for reduction or elimination of the liquid NH3/HF/MFz waste melt produced by the reactor.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 25, 2003
    Inventors: Athanasios Tsirukis, John Theodore Lileck, Howard Paul Withers, Kenneth E. Fegley
  • Preparation of iodine pentafluoride by direct fluorination of molten iodine
    Patent number: 4108966
    Abstract: Iodine pentafluoride is produced from gaseous fluorine and molten iodine by contacting the iodine with fluorine in a reaction zone maintained at a temperature in the range of about 114.degree. to about 280.degree. C. The process results in high yields of pure iodine pentafluoride.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: August 22, 1978
    Assignee: Air Products & Chemicals, Inc.
    Inventor: John Theodore Lileck
  • Preparation of nitrogen trifluoride
    Patent number: 4091081
    Abstract: Nitrogen trifluoride is prepared by passing elemental fluorine in intimate contact with liquid phase ammonium acid fluoride maintained at a temperature above its melting point but below about 400.degree. F for a time sufficient to effect reaction. Generally, ammonia is injected into the ammonium acid fluoride along with the fluorine to maintain a molar ratio of by-product hydrogen fluoride to ammonia of approximately 2.0 to 2.5.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: May 23, 1978
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Andrew Joseph Woytek, John Theodore Lileck