Patents Represented by Attorney Barry Noyerman

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  • 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