Patents Assigned to Starmet Corp.
  • Method and apparatus for fabricating near spherical semiconductor single crystal particulate and the spherical product produced
    Patent number: 6106614
    Abstract: An apparatus and a method for producing single crystal semiconductor particulate in near spherical shape and the particulate product so formed is accomplished by producing uniform, monosized, near spherical droplets; identifying the position of an undercooled droplet in a nucleation zone; and seeding the identified droplet in the nucleation zone to initiate single crystal growth in the droplet.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 22, 2000
    Assignee: Starmet Corp
    Inventors: Matthew D. Stephens, Steven A. Miller, Jessica Belcher
  • Method for producing uranium oxide and a non-radioactive fluorine compound from uranium tetrafluoride and a solid oxide compound
    Patent number: 5918106
    Abstract: A method for producing uranium oxide includes combining uranium tetrafluoride and a solid oxidizing agent having a lower thermodynamic stability than the uranium oxide; heating the combination below the vapor point of the uranium tetrafluoride to sufficiently react the uranium tetrafluoride and the oxidizing agent to produce uranium oxide and a non-radioactive fluorine compound; and removing the fluorine compound.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: June 29, 1999
    Assignee: Starmet Corp.
    Inventors: John B. Bulko, William T. Nachtrab
  • Method for producing silicon tetrafluoride from uranium tetrafluoride
    Patent number: 5888468
    Abstract: A method for producing silicon tetrafluoride includes combining uranium tetrafluoride and silicon dioxide; heating the combination below the melting point of the uranium tetrafluoride to sufficiently react the uranium tetrafluoride and the silicon dioxide to produce non-radioactive silicon tetrafluoride and an oxide of uranium; and removing the silicon tetrafluoride.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: March 30, 1999
    Assignee: Starmet Corp.
    Inventors: William T. Nachtrab, John B. Bulko