From Consolidated Material (e.g., Briquette, Pellet, Etc.) Patents (Class 75/10.31)
  • Patent number: 11242605
    Abstract: In a system and method for separating metals from a substance comprising them, a system may comprise a constant current power supply and a furnace having a chamber for containing the substance. The furnace may comprise an insulating outer section, a chamber wall, and two electrodes.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: February 8, 2022
    Inventors: Vasily Jorjadze, David Gelenidze
  • Patent number: 6302938
    Abstract: A carbonaceous material is controlled such that the amount of carbon is from 7 to 60 mass % based on the total amount of iron and Zn in a starting mixture comprising one or more of ducts containing iron oxide and Zn oxide and a binder in an amount to bond the dusts, and water is added to prepare green pellets incorporated with the carbonaceous material. Then, dry pellets prepared by drying the thus prepared green pellets into a reduction furnace, the dry pellets are heated by heat transfer, mainly, radiation such that a temperature elevation rate is from 3 to 13° C./sec within a temperature range from 150 to 900° C. of the pellets, thereby reducing Zn oxide and evaporating Zn, as well as reducing iron oxide to produce reduced iron pellets.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: October 16, 2001
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Tsunao Kamijo, Kazuya Miyagawa, Yoshimichi Takenaka, Masakata Shimizu, Shoji Shirouchi, Haruhisa Iwakiri