Patents by Inventor Harvey Rosenhouse

Harvey Rosenhouse 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).

  • Heat recovery in the manufacture of phosphorus acids
    Patent number: 4713228
    Abstract: Heat is recovered from the phosphorus combustion chamber of a furnace phosphoric acid plant by placing in the combustion chamber a heat exchange surface having a protective meta acid coating thereon. Pressurized water can be used as a heat exchange fluid.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: December 15, 1987
    Assignee: FMC Corporation
    Inventors: Jonathan F. Shute, Harvey Rosenhouse
  • Apparatus for distilling phosphorus
    Patent number: 4575403
    Abstract: A continuous process for reducing the arsenic content of phosphorus is described in which the impure phosphorus is continually passed through a heat exchanger and heated to vaporize a portion of the phosphorus at a temperature not above 200.degree. C., separating the vaporized phosphorus in a disengaging zone under subatmospheric pressure and introducing it into a fractionating zone under subatmospheric pressure, fractionating the phosphorus from the less volatile arsenic, condensing under subatmospheric pressure low-arsenic phosphorus rising from the fractionating zone, returning a portion of the low-arsenic phosphorus condensate as reflux to the column, removing high-arsenic liquid phosphorus as bottoms from the fractionating zone, and recovering the remaining portion of low-arsenic phosphorus condensate as product.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: March 11, 1986
    Assignee: FMC Corporation
    Inventors: Harvey Rosenhouse, Jeffrey C. Dore
  • Process for phosphorus purification
    Patent number: 4483746
    Abstract: A continuous process for reducing the arsenic content of phosphorus is described in which the impure phosphorus is continually passed through a heat exchanger and heated to vaporize a portion of the phosphorus at a temperature not above 200.degree. C., separating the vaporized phosphorus in a disengaging zone under subatmospheric pressure and introducing it into a fractionating zone under subatmospheric pressure, fractionating the phosphorus from the less volatile arsenic, condensing under subatmospheric pressure low-arsenic phosphorus rising from the fractionating zone, returning a portion of the low-arsenic phosphorus condensate as reflux to the column, removing high-arsenic liquid phosphorus as bottoms from the fractionating zone, and recovering the remaining portion of low-arsenic phosphorus condensate as product.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: November 20, 1984
    Assignee: FMC Corporation
    Inventors: Harvey Rosenhouse, Jeffrey C. Dore