Patents by Inventor Barlane R. Eichbaum

Barlane R. Eichbaum 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).

  • Production of alumina from aluminum nitrate solutions
    Patent number: 4260589
    Abstract: Aluminum nitrate solutions are subjected to hydrolysis at elevated temperature and pressure, with the pressure being kept relatively low by continual bleeding of reactant gases from the reaction vessel. The resultant product is a noncrystalline alumina that may be readily converted to crystalline alumina by roasting.In addition, the discharged reactant gases are employed for leaching of clay to provide aluminum nitrate feed solution.
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: April 7, 1981
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Barlane R. Eichbaum, Judith A. Eisele, Donald J. Bauer
  • Acid process for recovery of alumina from clay
    Patent number: 4094955
    Abstract: Alumina monohydrate is produced by leaching calcined clay and subjecting the leach liquor to pressure hydrolysis wherein the vapor and heat resulting from the pressure hydrolysis are directly utilized for leaching of the calcined clay. The aluminum monohydrate may be roasted to yield alumina.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: June 13, 1978
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Donald J. Bauer, Judith A. Eisele, Barlane R. Eichbaum
  • Production of alumina monohydrate from aluminum nitrate solutions
    Patent number: 4044115
    Abstract: Alumina monohydrate is produced by treating aluminum nitrate solution at a temperature of about 250.degree. to 350.degree. C and a pressure of about 500 to 2500 psig.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: August 23, 1977
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Judith A. Eisele, Barlane R. Eichbaum, Donald J. Bauer