Patents Assigned to Gosudarstvenny Proektny I Nauchno-Issledovatelsky Institut "Gipronikel"
  • Patent number: 4445932
    Abstract: Disclosed is a method of recovering ferronickel from oxidated nickel ores, omprising preparing of a charge accompanied by roasting ore, a reducing agent and flux, followed by electric smelting of the charge. According to the proposed method, roasting of the ore with the reducing agent and roasting of the flux are carried out separately.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: May 1, 1984
    Assignee: Gosudarstvenny Proektny I Nauchno-Issledovatelsky Institut Gipronikel
    Inventors: Boris P. Onischin, Valery D. Linev, Alexandr E. Burochkin, Sergei G. Mitsev, Viktor R. Keller, Ivan S. Chernyshev, Viktor V. Lakisov, Valentin P. Moiseev, Jury A. Romanenkov, Tamerlan G. Khakimov
  • Patent number: 4412857
    Abstract: Disclosed is a method of smelting ferronickel that comprises the steps of justing the depth of the slag bath, the depth of immersion of the electrodes thereinto and the specific power at the electrode surfaces wetted with the slag. According to this method, the depth of the slag bath is maintained within the range of from 0.6 to 1.1 of the electrodes diameter, while the depth of immersion of the electrodes and the specific power at the electrode surfaces wetted with the slag are kept at such levels as to provide a mode approaching to the arc mode, but at the same time to that of the ferronickel bath temperature should be adequately high for the free ferronickel tapping. The depth of immersion of the electrodes into the slag bath of 0.1 to 0.25 of the electrode diameter and the specific power at the electrode surfaces wetted with the slag of 5.0 to 6.5 MW/m.sup.2 are optimal for the hereinabove mentioned mode.
    Type: Grant
    Filed: April 27, 1982
    Date of Patent: November 1, 1983
    Assignee: Gosudarstvenny Proektny I Nauchno-Issledovatelsky Institut "Gipronikel"
    Inventors: Vladimir A. Kadykov, Boris P. Onischin, Gennady P. Ermakov, Valery D. Linev, Viktor P. Khristoforov, Alexandr E. Burochkin, Sergei G. Mittsev, Gennady A. Timofeev, Viktor R. Keller, Viktor P. Mikshin, Grigory I. Grodinsky