Patents by Inventor John V. Orlando

John V. Orlando 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).

  • Energy recovery method and system for combined sulphuric acid and phosphoric acid manufacturing plant
    Patent number: 4495161
    Abstract: In conventional processes for manufacturing phosphoric acid, sulphuric acid is reacted with phosphate rock to produce weak phosphoric acid which is concentrated using steam from the associated sulphuric acid manufacturing operation. Low grade heat from the absorbers and drier of the sulphuric acid manufacturing plant has been wasted. According to the invention waste heat from the drier and one or more absorbers of the sulphuric acid manufacturing plant is used in all the evaporators of the phosphoric acid plant. The evaporators all operate at low pressures and their heaters are arranged in series, to enable the heat to be used at the relatively low temperatures available. The valuable steam is thus freed for other uses.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: January 22, 1985
    Assignee: C-I-L Inc.
    Inventors: Gordon M. Cameron, John V. Orlando