Patents by Inventor Francisco Meza

Francisco Meza 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 purification of acetonitrile
    Patent number: 4119497
    Abstract: The present invention refers to a process for the purification of acetonitrile from crude acetonitrile or mixtures containing the same, which comprises the following operations:(a) transformation of hydrogen cyanide and acrylonitrile into compounds of higher molecular weight,(b) removal of most of the water in an azeotropic distillation column, and(c) separation of acetonitrile from the compounds of higher molecular weight and residual water in rectifying columns.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: October 10, 1978
    Assignee: Instituto Mexicano del Petroleo
    Inventors: Felipe Ocampo, Francisco Meza, Francisco Aguirre