Patents by Inventor Xiaoqing Xi

Xiaoqing Xi 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).

  • Process and device for the preparation of hollow microspheres comprising centrifugal atomization
    Patent number: 8845936
    Abstract: A process for preparing hollow ceramic or metal microspheres, comprising the steps of: forming ceramic or metal slurry, comprising ceramic or metal powders, water and dispersant and having a certain solid phase content, into a stable foam slurry by using a foaming agent; introducing the stable foam slurry into a centrifugal atomization equipment to atomize it into hollow slurry droplets, while being sprayed into a molding chamber; drying rapidly to form hollow microsphere green body; collecting the hollow microsphere green body and sintering. The hollow microsphere prepared has a particle size of 0.001-1.5 mm and high quality and low cost. The process is adapted to produce various inorganic material powders into hollow microspheres. The present invention also provides a device for preparing hollow ceramic or metal microspheres and hollow microspheres.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 30, 2014
    Assignee: Hebei YL-Bangda New Materials Limited Company
    Inventors: Jinlong Yang, Kai Cai, Xiaoqing Xi, Guojun Ge, Yong Huang
  • PROCESS AND DEVICE FOR THE PREPARATION OF HOLLOW MICROSPHERES
    Publication number: 20120107611
    Abstract: A process for preparing hollow ceramic or metal microspheres, comprising the steps of: forming ceramic or metal slurry, comprising ceramic or metal powders, water and dispersant and having a certain solid phase content, into a stable foam slurry by using a foaming agent; introducing the stable foam slurry into a centrifugal atomization equipment to atomize it into hollow slurry droplets, while being sprayed into a molding chamber; drying rapidly to form hollow microsphere green body; collecting the hollow microsphere green body and sintering. The hollow microsphere prepared has a particle size of 0.001-1.5 mm and high quality and low cost. The process is adapted to produce various inorganic material powders into hollow microspheres. The present invention also provides a device for preparing hollow ceramic or metal microspheres and hollow microspheres.
    Type: Application
    Filed: April 20, 2010
    Publication date: May 3, 2012
    Applicant: HEBEI YL-BANGDA NEW MATERIALS LIMITED COMPANY
    Inventors: Jinlong Yang, Kai Cai, Xiaoqing Xi, Guojun Ge, Yong Huang