Patents Examined by Rebekah A. Griffith
  • Process and apparatus for producing non-oxide compounds
    Patent number: 4818511
    Abstract: A process for producing non-oxide compounds such as silicon nitride and silicon carbide by using a multi-stage apparatus constructed of a raw material drier section, a reactor section including a multiplicity of reaction vessels, and a non-oxidizing gas feeder section, is disclosed. The sections are arranged serially in the vertical direction. Raw materials are reacted with one another while fluidizing or bubbling by a hot non-oxidizing gas (argon or nitrogen) occurs in the raw material drier section and reaction vessels.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: April 4, 1989
    Assignee: Nihon Cement Co., Ltd.
    Inventors: Yoshitsuga Nishi, Kenji Kawasaki, Mutuo Hayashi, Chitake Yamagishi