Patents by Inventor Qichen HU

Qichen HU 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).

  • Method for preparing vanadium and vanadium alloy powder from vanadium-containing materials through shortened process
    Patent number: 11247270
    Abstract: Disclosed is a method for preparing vanadium or vanadium alloy powder from a vanadium-containing raw material through a shortened process, including: calcinating a mixture of a vanadium-containing raw material and an alkali compound for oxidation to form a water-soluble vanadate; purifying the vanadate followed by vanadium precipitation to produce an intermediate CaV2O6 with high purity; dissolving CaV2O6 in a molten-salt medium together with other raw materials to form a uniform reaction system; and introducing a reducing agent to the system followed by separation, washing and drying to produce vanadium or vanadium alloy powder having a particle size of 50-800 nm and a purity of 99.0 wt % or more. The method can continuously process vanadium-containing raw materials to prepare vanadium or vanadium alloy powder.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: February 15, 2022
    Inventors: Na Wang, Xindong Wang, Ruiguo Bai, Chunliang Wu, Qichen Hu, Baohua Wang, Ruifeng Ma
  • METHOD FOR PREPARING VANADIUM AND VANADIUM ALLOY POWDER FROM VANADIUM-CONTAINING MATERIALS THROUGH SHORTENED PROCESS
    Publication number: 20200246875
    Abstract: Disclosed is a method for preparing vanadium or vanadium alloy powder from a vanadium-containing raw material through a shortened process, including: calcinating a mixture of a vanadium-containing raw material and an alkali compound for oxidation to form a water-soluble vanadate; purifying the vanadate followed by vanadium precipitation to produce an intermediate CaV2O6 with high purity; dissolving CaV2O6 in a molten-salt medium together with other raw materials to form a uniform reaction system; and introducing a reducing agent to the system followed by separation, washing and drying to produce vanadium or vanadium alloy powder having a particle size of 50-800 nm and a purity of 99.0 wt % or more. The method can continuously process vanadium-containing raw materials to prepare vanadium or vanadium alloy powder.
    Type: Application
    Filed: June 20, 2019
    Publication date: August 6, 2020
    Inventors: Na WANG, Xindong WANG, Ruiguo BAI, Chunliang WU, Qichen HU, Baohua WANG, Ruifeng MA