Patents by Inventor Prasad Aysola

Prasad Aysola 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).

  • Ambient temperature destruction of PCB wastes
    Patent number: 5118429
    Abstract: There is disclosed a process for destroying halogenated hydrocarbons such as PCBs and PCBs in PCB containing fluids (e.g., Askarel) and oils (e.g., paraffin oil, transformer oil, etc.) at ambient temperature. The process comprises reacting halogenated hydrocarbons, such as PCB containing fluids or oils with a solid oxidant in the presence of a concentrated acid. Preferably, the solid oxidant is potassium permanganate and the concentrated acid is sulfuric acid. Destruction efficiency is as high as 99.95%.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: June 2, 1992
    Assignee: Concordia University
    Inventors: Perry D. Anderson, Bhuvan C. Pant, Zhendi Wang, Cooper H. Langford, Prasad Aysola
  • Microwave-mediated degradation of PCB wastes
    Patent number: 4980039
    Abstract: This is disclosed a process for the decomposition of halogenated hydrocarbons including polychlorinated biphenyls (PCB) and chlorinated pesticides, as DDT and DDE. The process comprises microwave-mediated wet-ashing of the halogenated hydrocarbons(s) in controlled conditions to avoid an emission of noxious fumes from the reaction mixture. Preferably, the wet-ashing reagent is a 1:1 mixture of nitric acid and sulfuric acid.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: December 25, 1990
    Assignee: Canadian Patents & Development Ltd.
    Inventors: Prasad Aysola, Perry D. Anderson, Cooper H. Langford