Patents by Inventor Chengjin HAN

Chengjin HAN 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).

  • Publication number: 20240191317
    Abstract: A method for efficiently removing Cu in electric furnace steelmaking with regenerated steel raw materials comprises removing Cu in the electric furnace steelmaking and removing Cu deeply in RH/VOD steelmaking. The removing Cu in electric furnace steelmaking comprises removing Cu by spraying CaO—CaCl2—O2 in stages in the electric furnace steelmaking; the removing Cu deeply in the R/VOD steelmaking comprises removing Cu deeply by dynamically blowing CaCl2—O2 based on vacuum degree. Cu removing and Cu removing deeply are performed in the electric furnace steelmaking and the RH/VOD refining process based on the Cu removal principle of selective chlorination by high-oxygen-potential microcells manufactured in electric furnace steelmaking molten pool and on the RH/VOD refined steel liquid level and the high-vacuum smelting environment in the RH/VOD refining process fully utilized; the cost is low, the copper removing efficiency is high, and large-scale industrial production are facilitated.
    Type: Application
    Filed: September 8, 2023
    Publication date: June 13, 2024
    Applicants: University of Science and Technology Beijing, Liaoning Academy of Materials
    Inventors: Guangsheng WEI, Rong ZHU, Xinping MAO, Shuize WANG, Chengjin HAN, Kai DONG, Chao FENG, Xin LI