Patents Represented by Attorney James C. Simmones

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  • Process for purification and concentration of sulfuric acid
    Patent number: 5275701
    Abstract: A process for the purification and concentration of sulfuric acid contained with nitric acid by-products and organic components pursuant to the mixed acid nitration of aromatics.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: January 4, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William J. Mazzafro, Stephen I. Clarke, Philip N. Taylor