Patents by Inventor William H. Algar

William H. Algar 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).

  • Alkali regeneration process
    Patent number: 4224289
    Abstract: In the regeneration of alkaline liquors as used in paper pulping, a mixed oxide compound of an alkali or alkaline earth metal oxide and an oxide of Ti, Fe, Co, Ni, or Mn is formed by burning black liquor. The burning step is carried out in a fluidized bed. The mixed oxide product is washed in cold water and subsequently treated with hot water to precipitate the oxide of Ti, Fe, Co, Ni or Mn and enable recovery of the alkaline solution for recycling.
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: September 23, 1980
    Assignee: Australian Paper Manufacturers Limited
    Inventors: Geoffrey H. Covey, William H. Algar