The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1981
Filed:
Nov. 21, 1978
Andrei V Vanjukov, Moscow, SU;
Valery V Mechev, Norilsk, SU;
Valentin P Bystrov, Moscow, SU;
Evgeny I Ezhov, Leningrad, SU;
Mikhail G Vasiliev, Norilsk, SU;
Vladimir Y Zaitsev, Moscow, SU;
Vladimir A Romenets, Moscow, SU;
Vladimir V Ivanov, Norilsk, SU;
Sergei Y Golik, Norilsk, SU;
Evgeny S Grin-Gnatovsky, Moscow, SU;
Alexandr V Grechko, Ryazan, SU;
Ivan V Savin, Ryazan, SU;
Sultanbek M Kozhakhmetov, Alma-Ata, SU;
Veniamin B Meierovich, Alma-Ata, SU;
Vladimir D Nagibin, Moscow, SU;
Nariman A Ramazanov, Alma-Ata, SU;
Almas B Umarov, Alma-Ata, SU;
Valentin E Ziberov, Moscow, SU;
Askar M Kunaev, Alma-Ata, SU;
Sauk T Takezhanov, Alma-Ata, SU;
Petr A Alexandrov, Balkhash Dzhezkazganskoi oblasti, SU;
Boris I Kolesnikov, Norilsk, SU;
Dzhonson T Khagazheev, Norilsk, SU;
Other;
Abstract
A method for processing heavy nonferrous metal raw materials by heating and melting said raw materials in a molten slag with the formation of a heterogeneous melt consisting of a sulfide and an oxide phases. The melt is bubbled oxidized by injecting a gas containing not less than 35% oxygen at an intensity of about 200 to about 2000 m.sup.3 STP/h per square meter of horizontal section of the melt, with the effect that the melt is divided into a top bubbled part and a bottom calm part comprising a slag layer, a mattelayer and/or a crude metal layer, each of which is tapped separately. A furnace for putting said method into effect is a shaft terminating in its bottom part by a hearth and having devices for tapping smelting products, whereas the top part is provided with orifices for feeding a charge and removing gaseous smelting products. The furnace has cooled side tuyeres set at a level dividing the shaft into two vertical parts. The device for tapping slag from the bottom part of the slag layer is formed with a recipient communicating with the internal cavity of the shaft by means of a duct arranged below the tuyere level, but above the level of the matte inside the shaft. Said technological sequence of operations and the furnace design provide a possibility of separating polymetallic raw materials by a single-stage process into smelting products and denuded slag. It is most effective to employ the present invention for processing high-sulfur copper, nickel, copper-nickel and copper-zinc raw materials.